The Best Tankless Water Heater Reviews 

Tankless Water Heater

Are you looking for the best tankless water heater in the market? If the answer is yes, you are in the right place. At Tankless Water Heater Reviews, we wish to help you enjoy an unlimited supply of hot water in your household. For this reason, we purpose to give you proper guidance on the best tankless water heater to purchase whether you are experienced or a newbie.

On Tankless Water Heater Reviews, we have reviewed the best tankless water heaters in the market. We are sure each one of you will identify one that meets their hot water needs. Let us go through the review together.

What is a Tankless Water Heater?

A tankless water heater is a unit whose purpose is to deliver hot water instantly. A tankless water heater does not have a storage space thus heats water as it runs through the pipe to the tap. The best thing about a tankless water heater is that it heats the water on demand. Our guide will give great insight into the 10 best tankless water heaters in the market.

The 10 Best Tankless Water Heaters of 2021:

The 10 Best Tankless Water Heaters

Most modern households have invested in the best tankless water heaters. They are more efficient, energy-saving, and economical to use especially when you are a heavy hot water user. However, most people may not be sure about the best tankless water heater purchase especially when they are purchasing them for the first time.

The type of water heater you go for is determined by factors such as size, the type of energy you intend to use, the recovery rate, and whether you need an electric or gas tankless water heater. You do not need to worry about it, we have prepared a simple guide for the best tankless water heaters below. Take your time and go through each one of them. We are sure that you will identify one that suits your needs.

1. Rinkmo Electric Tankless Water Heater

Rinkmo is an efficient electric tankless water heater that provides you with consistent and constant hot water. You do not need to preheat the water which saves a lot of energy. On opening the tap, you can be sure to get hot water within three seconds. Also, the unit creates enough heat to produce hot water without any contact with the metal. This means that there will be no build-up of minerals. Maintenance of this tankless water heater, therefore, becomes easy and cheap since the heater coils rarely break down.

Rinkmo also comes with smart modulating technology and a formula that calculates the current temperature vs the preferred temperature. This technology also makes adjustments to one power unit depending on the flow rate and also adjust temperatures. The temperature and flow sensors work efficiently to ensure that you do not experience abrupt temperature changes. Also, this electric tankless water heater comes in a compact size. This helps a lot in saving space since you can install it in small spaces like under the kitchen sink, in the laundry room, and also in cabins. Rinkmo is also easy to install and operate. Choosing a Rinkmo electric tankless water heater is equal to choosing efficiency and reliability in one basket.


Pros
  • Energy efficient

  • Saves you money

  • Easy to install

  • An instant and constant supply of hot water

  • Comes with smart modulating technology to ensure no abrupt change of temperature

  • Compact size that saves space

Cons
  • It May be pricy for someone working with a budget

2. Rinnai Indoor Tankless Hot Water Heater

With Rinnai, you will never have to worry about your hot water needs. It provides you with a consistent supply of hot water whenever you need it. This unit comes with ThermaCirc360 technology which helps in the recirculation of hot water in the pipes to ensure that you receive hot water efficiently. This curbs water wastage since you do not have to wait for the water to get hot to travel from the tank to the tap for it to become hot.

Rinnai also comes with a compact design which saves a lot of space. You will be able to install the tankless water heater in unnoticeable small spaces. This unit is also affordable since it is designed in such a way that it cuts on CO2 emissions efficiently. This saves a lot of energy and conservation of water. The parts of the unit are easy to replace so you do not need to replace the whole unit when it breaks down. Rinnai Indoor Tankless Water Heater is, therefore, a great investment whether you will be using it in your household or commercial places.


Pros
  • A constant supply of hot water

  • Comes with ThermoCirc360 technology

  • Energy efficient

  • Comes with a compact design that saves on space

  • Comes with smart modulating technology to ensure no abrupt change of temperature

  • Easy to replace damaged parts

Cons
  • Quite pricy

3. Stiebel Eltron Tankless Water Heater

Stiebel Eltron is a high efficient tankless water heater that comes with premium features.  The advanced control German technology helps in maintaining the required temperature thus a consistent supply of hot water whenever you need it. This technology also reduces the flow whenever the hot water demand is higher than the capacity it can hold.  Hot showers will therefore run uninterrupted which gives you comfort and guarantee that you will not lack hot water at any time.

Another great thing about Stiebel Eltron Tankless Water Heater is that it is energy efficient. It uses less than 20 % energy as compared to other electric tankless water heaters. This unit also saves energy by heating only the water you require. This also saves a lot of energy since it does not store heated hot water. Also, this tankless water heater does not need any venting thus no heat loss. Stiebel Eltron Tankless Water Heater also comes with a compact design which saves a lot of space. Purchase this unit and stand to be sure to enjoy comfort, efficiency, and a continuous supply of hot water.


Pros
  • Energy efficient

  • Unlimited supply of hot water

  • Comes in a compact design thus save on space

Cons
  • The installation process may be tedious

4.Rheem RTEX Electric Tankless Water Heater

Rheem RTEX is a high-quality and deficient electric tankless water heater that delivers instant hot water on demand whether it is on single or multiple points.  It comes with a compact and sleek design which saves a lot of space. This is because it can fit in small spaces like the laundry area, under the kitchen sinks, and also in cabins. Also, this unit is energy efficient. You do not have to wait for the water to run until it gets hot. One opening the tap, you receive instant hot water. Rheem also comes with digital temperature control. You can therefore make adjustments to your desired temperature.

Rheem RTEX is made from robust copper elements and is covered with a brass top which makes it durable. The unit is also threaded which makes it easy to replace. Installing Rheem RTX is also quite easy. You do not need a professional to install it for you.


Pros
  • A constant supply of hot water

  • Energy efficient

  •  Comes with digital temperature control

  • Easy to install

  • Durable

  • Compact and sleek design

Cons
  • Pricy

5. EcoSmart ECO 18 Electric Tankless Water Heaters

EcoSmart ECO is an electric tankless water heater that will save you up to 50 % energy even as it provides you with instant hot water when you need it.  It comes with features that prevent heat loss making the unit energy efficient. With this unit, you do not waste any water since it heats the water as it comes out of the tap. Also, it comes with a compact and sleek design that can be easily mounted on the wall. You will not experience any challenges with space since it can fit in most small spaces. Most people prefer using EcoSmart in their bathrooms, laundry rooms, and also in the kitchen.

EcoSmart ECO 18 Electic Tankless Water Heater is easy to install. You do not need to engage a professional to install since you can do it yourself. This saves a lot on installation costs and time. Purchasing this unit will not only help meet your high demand for hot water but also provide it efficiently.


Pros
  • Energy efficient

  • Provides you with a consistent supply of hot water

  • Easy to install

  • Comes with a compact and sleek design

  • Saves space

Cons
  • It could be expensive to engage a plumber to install it for you

6. Bosch Electric Mini-Tank Water Heater

Anyone looking for a convenient water heater needs to invest in Bosch electric mini tankless water heater. It provides you with instant hot water any time you need it. You do need to heat and store hot water for later use like with traditional water heaters. Also, you save a lot on the water since you instantly get hot water once you open the tap.

Bosch comes with a glass-lined tank thus durable. It will serve you for a long time without which in return saves you money that you would have used to replace it and the best thing is that it has a 6 years warranty on the heater and 1-year warranty on parts. This is a great relief since you do not have to worry about repairs when the electric water heater breaks down within the warranty period. Bosch electric water heater comes with a compact and sleek design that fits in any space. The sleek design fits with all decors thus can be used in any room. Also, the water heater can either be installed horizontally or vertically thus fits in any available space.


Pros
  • High quality

  • Perfect for small spaces

  • Instant hot water on the tap

  • Minimal waiting time for hot water on the tap

  • Energy efficient

  • Comes with a compact and sleek design

  • Has a 6 years warranty on the heater and 1-year warranty on the parts

Cons
  • Removal of water from the water heater may be quite difficult

7. Marey GA10LP Propane Tankless Water Heater

Marey is a propane tankless water heater that works efficiently to provide you with a constant supply of hot water when needed. This helps in saving water since you only heat the amount of water you need. Also, it saves up to 60 % of energy thus cut the cost of electricity too. This unit has a compact design which saves a lot of space and is easy to install. The unit can fit almost everywhere thus can be fitted in any available space.

Marey propane tankless water heater does not require any kind of electrification since it uses propane gas. This makes it a perfect fit for homes that experience power outages. With this unit, they will receive an unlimited supply of hot water efficiently. Also, this unit comes with a compact design which saves on space. The unit is also easy to install and can fit in any available space. Marey is also rustproof thus durable. It works best when the water pressure is low. Last but not least, it comes with a 5-year warranty. You will not have to worry about servicing, repairs, and even replacement of the unit in case it breaks down within 5 years.


Pros
  • Unlimited supply of hot water when in need

  • Does not require electrification since it uses propane gas

  • Energy efficient

  • Comes with a compact design

  • It has a 5 years warranty

  • Rustproof

Cons
  • Works well when the water pressure levels are low

8. Camplux Electric Tankless Water Heater

Camplux is an electric heater that uses smart technology. You will control the temperatures through the touch feature on the digital display. Also, it comes with a smart remote controller thus you can control the tankless water heater from anywhere. The smart technology makes it easy for you to set your desired temperature easily. The unit also comes with a compact design which helps in saving space. This means that you can fix the tankless water heater in any available space in your house.

Camplux comes with multiple protection features. You will not experience any leakages or cases of overheating with this unit. This ensures your safety when using this electric water heater. Also, Camplux is covered with a stainless steel material which is rust free and durable. With Camplux electric tankless water heater, you can be sure to receive an unlimited supply of hot water when you need it. The unit has minimum activation water flow which guarantees that you will receive hot water on the tap or shower instantly.

Another great thing about Camplux Tankless Water Heater is that it comes with a compact and sleek design that allows for multi-angled mounting. You can therefore use it in the kitchen, hospitals, and schools, or hair salons since it does not occupy much space.


Pros
  • Operated through smart technology

  • Saves space

  • Easy to set temperature

  • Convenient

  • Durable

  • Unlimited supply of instant hot water

  • Comes with a compact design

Cons
  • You need a professional to install the electric tankless water heater

9. Eccotemp Tankless Water Heater

Eccotemp is a gas tankless water heater that delivers 4 gallons of water per minute when it is needed. Water running from the tap gets heated as it flows which saves a lot of energy. Also, water wastage is reduced since water gets heated instantly so you do not have to leave the water running until the water gets hot.

Eccotemp tankless water heater also comes with a sleek and modern design whose front glass panel is black tempered and uses LED display control. You can therefore monitor the water temperatures and make adjustments when need be. It is worth noting that the temperature control is automatic. Also, the unit comes with child lock technology which prevents children from tampering with the unit. The ignition system is also electric and safe for all users. Last but not least, Eccotemp has horizontal venting which makes installation convenient and easy.


Pros
  • Energy efficient

  • Convenient

  • Comes with a sleek and modern design

  • Comes with LED display control

  • Automatic temperature control

  • Child lock technology

  • The electronic ignition system is safe

  • Easy to install

Cons
  • When the water heater is running, the fan becomes too loud

10. BotaBay Propane Tankless Water Heater

BotaBay is a high-quality tankless water heater made from stainless steel which is anti-rust too. It is a unit that is resistant to copper water devices. Also, the unit has multiple security protection which ensures your safety when using the tankless water heater. At no time will the temperatures be too high or too low.

BotaBay propane tankless water heater also comes with an LED display which enables you to monitor the temperatures when the water heater is running. You can therefore make adjustments on temperature when need be. This unit is also space-saving. You can mount it on the wall or any available small space in the room.


Pros
  • Energy saving

  • Multiple security protection

  • Made from stainless steel and copper materials thus durable

  • Space-saving

  • Cheap

  • Comes with an LED display

Cons
  • The size is not suitable for use in a big household

Special Features of Tankless Water Heaters

As much as Tankless Water Heaters are all great, some have better features than others.  Such features make the tankless water heaters more efficient, high performance, and more energy-efficient. Take your time and go through the special features we have discussed below:

Use of Current Technology

Most current tankless water heaters come with Thermotechnology features that help with monitoring of water temperatures. Also, it comes with a digital display where you can read and adjust the temperature of water in the tankless water heater. Some units come with remote-controlled monitors too. All these features make it easy for the user to operate the tankless water heater.

Water Flow Rate

The water flow rate control feature is an important feature for any tankless water heater. It helps in the maintenance of consistent water temperatures. At no time will you have a cold shower since even when the flow rate reduces, the temperature of the water does not change. This is a great feature since it would be best to shower in a reduced flow of water than in cold water.

Warranties

Warranty is an important special feature to consider when purchasing any tankless water heater. All the above tankless water heaters come with warranties for heaters and parts. Warranties vary from one unit to another. They come with 5, 10 and others 20 years warranty.

Condensing Technology

Condensing technology works by allowing the already released hot gas to be reused in the heating of more water. This cuts the cost of heating and enhances the efficiency of the tankless water heater. Venting and installation costs are also low since most tankless water heaters use cheap venting materials as compared to other units that lack condensing technology.

Varying Flow Rates

It is important to consider the number of users in your household before purchasing a tankless water heater. When the users are many, you must go for a tankless water heater that can produce at least 10 gallons per minute. A smaller water heater should produce at least 5 gallons per minute. Make sure you choose a unit with a flow rate that suits your needs.

Use of Current Technology

Most current tankless water heaters come with Thermotechnology features that help with monitoring of water temperatures. Also, it comes with a digital display where you can read and adjust the temperature of water in the tankless water heater. Some units come with remote-controlled monitors too. All these features make it easy for the user to operate the tankless water heater.

Water Flow Rate

The water flow rate control feature is an important feature for any tankless water heater. It helps in the maintenance of consistent water temperatures. At no time will you have a cold shower since even when the flow rate reduces, the temperature of the water does not change. This is a great feature since it would be best to shower in a reduced flow of water than in cold water.

Warranties

Warranty is an important special feature to consider when purchasing any tankless water heater. All the above tankless water heaters come with warranties for heaters and parts. Warranties vary from one unit to another. They come with 5, 10 and others 20 years warranty.

Special Features of Tankless Water Heaters

Condensing Technology

Condensing technology works by allowing the already released hot gas to be reused in the heating of more water. This cuts the cost of heating and enhances the efficiency of the tankless water heater.

Venting and installation costs are also low since most tankless water heaters use cheap venting materials as compared to other units that lack condensing technology.

Varying Flow Rates

It is important to consider the number of users in your household before purchasing a tankless water heater. When the users are many, you must go for a tankless water heater that can produce at least 10 gallons per minute.

A smaller water heater should produce at least 5 gallons per minute. Make sure you choose a unit with a flow rate that suits your needs.

What Type of Tankless Water Heater do you need?

Whenever you are planning to purchase a tankless water heater, the first step is to decide on the type of tankless water heater you need. Should you go for an electric or gas tankless water heater? Even though their purpose is the same, they have differences in price, operation, and also their efficiency.  It is worth noting that, your choice of a tankless water heater greatly depends on the circumstances surrounding you. It could cost, several users in your household and also whether there is electricity in your area or not. All these will dictate the type of tankless water heater you will purchase. Let us look at the differences between gas and electric tankless water heaters.

Gas tankless water heaters are more expensive than electric ones. However, gas tankless water heaters are cheaper to fuel and the best with energy-saving. Most people prefer them for this reason. Electric tankless water heaters are also great. It is cheaper to install and more efficient than a gas tankless water heater. Compared to gas tankless water heaters, electric tankless water heaters are easy to maintain. They can go for years without needing maintenance while it’s the opposite for gas tankless water heaters. You need to service the gas tankless water heaters now and then for them to work efficiently.

Once you settle for a gas tankless water heater, you should be aware that they have to vent to get rid of excess heat. The good thing is that you do not incur an extra cost since the water heater comes with vents. The venting materials are rust-resistant since they are made from stainless steel. An electric tankless water heater does not require venting since the heater does not release any exhaust gases. This makes it eco-friendly thus can fit in any room since no venting will be experienced.

What are the Special Requirements for me to have a Tankless Water Heater?

To have either gas, propane, or an electric tankless water heater in your household, you need to be sure that your home will accommodate it. If you plan to purchase a propane or gas tankless water heater, then you need to be aware that you will need enough space for the gas lines and venting.

Also, depending on the type of water in your area, you may need to purchase a water softener separately. The water softener helps to make hard water soft to prevent minerals build up in the tankless water heater. This will save you on maintenance costs.

How a Tankless Water Heater Works

Tankless water heaters do not have storage tanks. They heat water on demand which guarantees a constant supply of hot water to the users. Tankless water heaters are more efficient as compared to traditional water heaters. It also saves a lot of energy since no heat is lost when heating water. For you to receive hot water, the electric or gas elements that connect with the pipes heat water passing through the pipes.

Compared to gas-powered tankless water heaters, the flow rate of electric tankless water heaters is slower. For you to receive hot water, the heat exchanger access heat from the gas or electric heater for it to raise the temperature of incoming water.

Water is therefore heated as it passes through the water pipes. The heat exchanger in tankless water heaters gets activated once you turn any equipment on. It warms all the water passing through the water pipes depending on the set temperature.

How a Tankless Water Heater Works

Why should you buy a Tankless Water Heater?

Who doesn’t love the convenience hot water brings? Tankless water heaters are the real deal in offering you comfort with chores and showers. You do not have to struggle with cold water when you can afford a tankless water heater.  You will get to enjoy an unlimited supply of hot water regardless of the number of users in your household.

Unlike traditional water heaters that have storage tanks, tankless water heater heats water instantly as it runs through the pipes. Anyone looking for a water heater needs to go the tankless way. Below are seven reasons why you should go for a tankless water heater.

It Saves Space

Traditional water heaters have large storage tanks that occupy a lot of space. Tankless water heaters do not have storage tanks since they heat water as it runs through the pipes. They are suitable for small spaces since you can even mount them on the wall which saves a lot of floor space.

Energy Efficient

Apart from saving water, tankless water heaters save a lot of energy. You will not experience heat loss from a tankless water heater since water gets heated on demand.  Saving on energy will also save on cost. You will spend little on gas and electricity which in return saves on cost.

Tankless Water Heaters are Durable

Unlike traditional water heaters, tankless water heaters are durable. This is because they do not need to be powered every often to heat water. Also, since it does not have a storage tank, the mineral build-up is not likely to accumulate in the tank. This helps in ensuring the durability of the tankless water heaters.

Easy to Maintain

It is easy to maintain tankless water heaters since they do not experience much minerals build-up since water only runs through the pipes into the tap. To clean a tankless water heater, you only need to use undiluted white vinegar to get rid of the mineral build-ups in the pipes.  The clean-up process also takes a few hours since it is not complicated.

Performs Multiple Tasks

Many things require hot water in your household. You need hot water in showers, kitchen sinks, dishwashers and also in the washing machines. Tankless water heaters are the real deal in providing you with unlimited hot water. Someone will be taking a shower as you run the dishwashers and washing machines. You will not run out of hot water at any time. This enables you to perform multiple tasks with ease.

Helps you Avoid Cold Showers

Days, when people would get stuck in a cold shower, are long gone. There are many modern tankless water heaters in the market which ensure that you have an unlimited supply of hot water. This enables you to avoid cold showers or washing dishes with cold water.

It Saves Water

With a tankless water heater, you do not have to wait for the water to run through the tap for it to get hot. You get hot water on demand. This saves a lot on water. It explains the reason why tankless water heaters are eco-friendly.

Common Issues with Tankless Water Heaters

No one wants a tankless water heater that is inconsistent in the delivery of hot water in a household. However, there are those days when you will experience challenges with your tankless water heaters. There are days when the heater fails to heat water thus cold tap water or cold shower. We have prepared some of the common issues you are likely to experience and steps you may take to prevent the issue from recurring below.

System Overload

A tankless water heater may experience overload when there are too many applications using one heater. The tankless water heater will therefore experience challenges with supplying multiple areas with hot water. This may lead to shutting down the system because of the overload. Whenever the demand for hot water in your household increases, it would be wise to upgrade to a tankless water heater with a bigger capacity or adding another tankless water heater.

Ignition Failure

Tankless water heaters sometimes experience ignition failure. It could be a result of lacking gas. It is important to ensure that your tankless water heater has enough gas at all times. Also, the water heater may fail to ignite when the gas and water valve are open. If you happen to experience challenges with ignition even after checking all the above, then the problem could be bigger than that. You would have to invite a technician to service the tankless water heater for it to work successfully.

Building up of Minerals

Whichever tankless water heater you may be using, it is important to keep an eye on mineral build up in your tankless water heater. Mineral build-up depends on regions. Areas with hard water will experience great challenges with building up of minerals as compared to areas with soft water. Also, when the water has too much calcium and magnesium, it is expected that your water heater will experience a lot of build-ups. To prevent this, you need to service the tankless water heater by flushing it after every six months. Also, you can use water softer in your water to prevent the build-up.

When the Exhaust or Air Supply is blocked

Most people may not be aware that installing their tankless water heaters in a congested place blocks the supply of air into the heater. Also, bird nests may block venting. The good thing with most tankless water heaters today is that the digital display will alert you when the exhaust or air supply is blocked. To prevent such issues, it is important to install the water heater in the air with enough supply of air. Also, inspect the venting pipes every often to ensure that they are puncture free and also well connected.

How Can I Prevent a Tankless Water Heater from Overheating?

Most people will not notice problems with their tankless water heaters until when they stop working. We take our time to learn how a tankless water heater works until when need be. You will find that even those who are keen on their tankless water heater notice a problem with their water heater once it starts overheating which is very dangerous. Below are some of the actions to take once a tankless water heater starts overheating.

Check the Temperature Settings

Most people who experience overheating of water do not realize that it could be from the wrong thermostat settings.  It could have been wrongly adjusted or people lacking knowledge on how to adjust it. There are tankless water heaters that come with safety latches while others don’t. It is therefore important to ensure that you check the thermostat settings every often to ensure the temperatures are correctly set.

Mechanical Fault

Once you ensure that the thermostat settings are correct, the next step is checking for mechanical faults. You will only be able to prevent mechanical faults when you maintain your tankless water heater regularly. Most often, the water heater becomes faulty when it damages the water heater elements or when the thermostat is malfunctioning. The elements may experience minerals build-up which makes it difficult for them to heat water. To prevent this problem, service the elements and thermostat every often.

Checking Temperature and Pressure Release Valves Regularly

Regular check up on temperature and pressure release valves prevent a lot of risks that could occur when they are faulty. When the thermostat or pressure release valves are faulty, the tankless water heater is likely to explode which is quite dangerous especially when the water heater is in use. To prevent such occurrences, service the thermostat and pressure release valves regularly.

Checking Temperature and Pressure Release Valves Regularly

Regular check up on temperature and pressure release valves prevent a lot of risks that could occur when they are faulty. When the thermostat or pressure release valves are faulty, the tankless water heater is likely to explode which is quite dangerous especially when the water heater is in use. To prevent such occurrences, service the thermostat and pressure release valves regularly.

Cleaning and Decalcifying

 To ensure that your tankless water heater is working efficiently, you need to clean and decalcify the inner side of the water heater every often. Once you do this regularly, you will be sure that the tankless water heater will serve you for a long time without getting faulty.

Getting the Most out of Tankless Water Heaters

Water heaters are vital gadgets in most modern households. This is because gadgets such as showers, kitchen sinks, washing machines, and dishwashers require the use of hot water.  Tankless water heaters, therefore, meet most of the hot water needs in a household. However, you need to get the most out of a tankless water heater for you to save on cost, water, and also reduce energy costs. How do you optimize the system of a tankless water heater to get the most out of it?  Below are some suggestions:

a) Reduce the Temperatures on your Thermostat

Once you purchase a tankless water heater, the thermostat is always set to a given temperature. You do not have to use the set temperature. You can always set it to your desired temperature. This will help you save on energy costs and ensure the safety of your family. At no time will they experience burns from hot water since the set temperature is standard. Also, minerals build-up and corrosion in the pipes will be prevented.

b) Reduce On Water Consumption

For you to get the most out of a tankless water heater, you need to reduce water consumption. This will help a lot in lowering the GPM requirements. Also, your energy bills will reduce since only the needed water is heated. You can also reduce water usage through the use of low-flow showers.

This will reduce the water you would use in the shower by half thus saving a lot on water. Another way to cut on water consumption is by making sure that you do not leave the water running on the faucet when brushing. Avoid it also when washing dishes. The little cuts will go a long way in cutting on water wastage.

c) Insulating your Piping

Most people are not aware that insulation of water pipes can save water and energy costs. Insulation of the exposed pipes helps a lot in maximizing the potential of a tankless water heater system. It raises the water temperatures so you do not have to leave the water running for it to warm up. This will not only save energy but also reduce water wastage.

d) Engage a Professional When Installing a Tankless Water Heater

It is important to engage a professional in the installation of tankless water heaters. It may be expensive but in the end, the water heater will work efficiently. Also, will be of great help when you are choosing a tankless water heater.

They will explain all specifications to you and help you choose a tankless water heater that suits your needs. The professionals will also help you identify the right place to install the water heater. They also help you understand how your tankless water heater works before leaving your premises.

e) Investing in the Right Size of a Tankless Water Heater

It is important to ensure that you are aware of the size of a tankless water heater that will meet your needs. Most people get frustrated because of investing in the wrong tank size. Some go for the wrong size while others buy a less powerful one.

It is important to consult a professional to get all the required details before purchasing a tankless water heater for your household or commercial place. This will enable you to invest your money in a tankless water heater that will enable you to meet your needs.

Is Maintaining a Tankless Water Heater Important?

Most people purchase tankless water heaters to save on energy costs as they enjoy an unlimited supply of hot water. However, whether you are using an electric or gas water heater, ensuring that they are well maintained is very important. The tankless water heaters are likely to experience mineral build-ups from the hard water, some will rust while others experience leakages.

Maintenance of the tankless water heaters ensures that your tankless water heater is more efficient and that it lasts longer. Maintenance depends on the hardness of the water in your area. The user must therefore carry out maintenance of tankless water heaters every six months. We have discussed some steps you can use to flash out the water heater below.

Let us go through them together:

Maintaining a Tankless Water Heater

Step 1

Turning off the Water Heater

You turn off the water heater by turning the circuit breaker on electric appliances off or by turning the main gas off. Also, unscrew the tabs and screws holding the access panel then turn the water supply off as you release pressure from the valve.


Step 2

Turn Off the Water Valves that are Attached to the Water Heater

You need to hook a separate valve that cold water uses to access the system on the inner side. Then connect another pipe that releases around 3 gallons of vinegar in a bigger bucket.


Step 3

Filling With Vinegar

The closed-loop system you create enables the vinegar to enter into the water heater and exit through the open valve of the already existing valve. If using a separate connection, the vinegar goes back to the bucket before recirculation.


Step 4

Running the Sump Pump

Once the hoses are well hooked, you need to run the sump pump for about an hour. The vinegar will clean the pipe as it runs through the pipe system. It will remove all the mineral build-ups in the pipe. After the clean-up, drain the vinegar and run clean fresh water into the tankless water heater to eliminate vinegar from the system.


Step 5

Remove the Flush Hoses

After carrying out the cleaning process, shut off the pump then remove the hoses as you close the valves. After doing that, return the water hoses to their rightful place on the water heater. Your tankless water heater is ready for use so you can turn the water and gas or power on and start using it.

Understanding GPM

GPM means gallons per minute or flow rate.  GPM refers to the number of gallons the water heater delivers every minute. For you to calculate GPM, you need to be aware of the specifications of your water tank and the number of gallons it can hold. It is through GPM that you will be able to identify the capability of a pump in a tankless water heater.

This will help you in selecting a tankless water heater that will suit your needs. You will need a tankless water heater with a larger capacity if you are a heavy hot water user and one with a lower capacity if your household hot water needs are not much. For you to save on cost, you also need to choose the right size of a pump.

Understanding GPM

Cleaning of Water Heater on your Tankless Water Heater

Most tankless water heaters come with a sediment screen which helps in restricting the large debris from reaching the heating unit. These sediment screens are reusable and easy to clean. You can soak them in white vinegar or clean them on running water to remove debris and any build-ups.

It is important to ensure that you clean up the tankless water heater every often to prevent mineral build-up. By doing so, you will eliminate chances of breaking down thus ensure an unlimited supply of hot water without experiencing any challenges.

Pros and Cons of a Tankless Water Heater

In as much as tankless water heaters are the most recommended, they do not lack drawbacks. Different tankless water heaters have their pros and cons which we have discussed below:

Pros
  • Unlimited Supply of Hot Water

    The best thing about tankless water heaters is that you will get hot water on the taps any time you need it. People with a high demand for hot water need to invest in the best tankless water heater.

  • Saves Energy and Cost

    Tankless water heaters provide you with hot water when it is needed. You do not have to heat and store the hot water to be used later. This saves a lot on energy and operating costs.

  • Durable

    Tankless water heaters will serve you for over 20 years with proper maintenance. This saves a lot on cost too since you do not have to keep replacing the tankless water heaters now and then.

  • Compact Design

    Tankless water heaters come with sleek designs that use less space. You can mount them on the wall or under the kitchen sinks. There are tankless water designs that you can even install outside. This makes them suitable for use in small spaces.

  • Tankless Water Heaters give you Peace of Mind

    Once you purchase a tankless water heater, you do not need to worry about leakages or storage space. This is because they do not come with a storage tank. You will enjoy some peace of mind after installing tankless water heaters. You will only be required to service them now and then for them to serve you for a longer period.

Cons
  • Cost

    When purchasing a tankless water heater, you will spend a lot of money upfront. This is because there might be gadgets that you will need to purchase upfront and also installation costs. You must budget for the extras to avoid straining too much after a purchase.

  • Need for Power Upgrade

    Most homes may have to upgrade their power source especially in homes that do not have a power source that to support tankless water heaters. This comes with additional costs. Some would opt to stick to their power source thus go for gas tankless water heaters which may be pricier.

  • Pricy Venting

    The gas tankless water heaters are normally non-condensing. This means that you will need to invest in category 3 venting materials which come at an extra cost.

  • Output Limitations

    You must consider the hot water demands in your house before purchasing a tankless water heater. This is because some tankless water heaters have a lower capability to deliver hot water especially in a household with high water usage.

Buyers Guide: Factors to Consider Before Purchasing a Tankless Water Heater

Selecting the best tankless water heaters is a tough task especially when you are purchasing it for the first time. Anyone planning to purchase tankless water heaters needs to consider the factors below:

Fuel / Energy Source

The energy or fuel source majorly depends on your preference and circumstances.  However, we advise heavy hot water users to go for a gas tankless water heater. This is because they are cheaper than electric ones. With a gas tankless water heater, you will be able to receive large amounts of hot water efficiently. The price of gas is also lower as compared to electricity thus suitable for large households.

Warranty

All tankless water heaters come with a warranty but they vary in several years. Most of them come with a 10 to 15-year warranty for the heat exchangers and around 2 to 5 years on parts. You must go through the warranties keenly for you to be able to identify the tankless water heater with the best warranty. A warranty will save you a lot on cost since you will not have to handle repairs that occur within the warranty

Temperature Rise

Another factor that you need to consider is the temperature rise. Every household, whether big or small needs a tankless water heater that can produce at least 70 degrees temperature rise. The temperature rise is achieved through a flow rate of about 5 gallons for each minute for a gas tankless water heater and 2 minutes per gallon for an electric tankless water heater.

Electric or Gas Tankless Water Heater?

Whether to purchase an electric or gas water heater depends on your preference and circumstances. In areas that experience power outages now and then, you need a gas tankless water heater for you to enjoy an unlimited supply of hot water. The cost of either the electric or gas tankless water heater also determines the one to purchase depending on your budget.

Gas tankless water heaters are more expensive because of installation costs but they may be suitable for areas without a consistent supply of hot water. The electric tankless water heater is however considered more efficient because of the stable power supply as compared to the unpredictable cost of gas.

Size

You need to do thorough research on different sizes of water heaters and their efficiency before purchasing any tankless water heaters. You need to be aware of the number of gallons of hot water you need per minute. All the areas that need hot water in your household will guide you on the right size of a tankless water heater to go for. Purchasing the correct size of a tankless water heater will guarantee an unlimited supply of hot water and will save you the cost of having to purchase multiple tankless water heaters for your household.

FAQ’s about Tankless Water Heaters

How Do Tankless Water Heaters Work?

The tankless water heater is easy to operate. Unlike traditional tankless water heaters which hold already heated water, tankless water heaters use gas or electricity to heat water on demand. Once the tap is open, the tankless water heater heats water passing the pipe instantly for you to receive hot water on the tap.

How Long Does a Tankless Water Heater Last?

With proper maintenance, tankless water heaters can last up to 20 years. They last long because very few parts will be moving as the water heater is working. Also, since water is not stored in any tank, the tank rarely experiences corrosion or residual build-up. This helps in making servicing easy thus can be done very often.

What kind of Maintenance do Tankless Water Heaters Require?

As long as you service the tankless water heaters every often, chances of breakdown and minimal. Servicing acts as preventive maintenance to ensure that the tankless water heater serves you for a long time.

How Many Times should you flush the Tankless Water Heater?

To get rid of mineral build up in the tankless water heaters, you need to flush the tankless water heater at least once a year. This will prevent challenges that you may encounter as a result of mineral build-ups.

How Will I Know the Gallon Per Minute I Need?

Most people experience challenges with identifying the right size of a tankless water heater. It is important to know the number of gallons unit to heat every minute for your hot water needs in your household to be met. How can you know the GPM rate? You will calculate the gallon per minute rate depending on the appliances that use hot water in your household. They will determine how many gallons of hot water you will produce every minute. You need to go for a tankless water heater that produces enough gallons of hot water when your household is big. Those with smaller households can go for a moderate water heater to ensure that their hot water needs are met too.

What is the Lifespan of a Tankless Water Heater?

Most tankless water heaters last for over 20 years with proper maintenance. The reason behind them being long-lasting is the fact that most of their parts are available and replaceable. However, it worth noting that electric tankless water heaters are durable than gas tankless water heaters.

How long does it take for a Tankless Water Heater to Heat Up?

A tankless water heater takes up to fifteen seconds to heat water to the right temperature though you will still wait for a few more seconds for the water to reach the shower or on your faucet.

Will I Save when using a Tankless Water Heater?

Depending on your hot water needs, a tankless water heater will help you save more than a traditional water heater would. With a tankless water heater, you are not likely to experience heat loss. Also, water is heated on demand making them the most energy-efficient water heaters you will ever come across.

What makes my Tankless Water Heater Take Long to Heat Water?

Your tankless water heater will take longer to heat water when the fixture mixing valves are faulty thus cause delays in heating water. The delay will mostly occur in between ignition and delivery of water to the faucet or shower.

What could make my Hot Shower get cold?

Your hot shower is likely to get cold when the temperature fluctuates. The temperature balancing valve experiences challenges in maintaining the required water flow and temperature. The pressure drop will either make the water too hot or too cold.

What are the special requirements for me to have a Tankless Water Heater in my Home?

Regardless of the tankless water heater you purchase, you need to engage a professional technician to install your tankless water heater. The technician will assess the type of water in your area and advise on the most suitable tankless water heater for you. Also, the technician assesses your home and advice on the best place to install a tankless water heater. Always engage a professional before and after the purchase of a tankless water heater.

Is it possible for me to install a Tankless Water Heater without the Help of a Professional?

This greatly depends on your skills. As long as you are confident and conversant with the laws and regulations in your area, you can always install the tankless water heater by yourself. Installing electric tankless water heaters is easier than gas tankless water heaters. This is because with an electric tankless water heater you do not need to connect gas lines or do venting unlike when working with a gas tankless water heater. In areas that require you to work with a licensed plumber, you will not have a choice of installing the tankless water heaters yourself. Also, you may look for a plumber when you do not feel confident enough to install the water heaters.

Final Thought

In this guide, we have reviewed some of the best tankless water heaters in the market. We are aware that different people prefer different types and sizes of tankless water heaters. Their choice of a tankless water heater also depends on the price. The above tankless water heaters are therefore of different prices so you are free to choose one that suits your budget. Some choose a tankless water heater depending on their circumstances. It could be depending on several hot water users in the household, the power source, the water flow rate in the household or commercial place, and also the number of gallons the water heater delivers per minute.

Our review gives you proper guidance on the best tankless water heater to purchase. If we were to give our recommendation, it would be Rinnai Indoor Tankless Hot Water Heater because of its all-around features.

Tankless Water Heater Reviews

The purpose of Tankless Water Heater Reviews is to help anyone looking forward to purchasing a tankless water heater to understand everything regarding tankless water heaters. Tankless water heaters are the most efficient and reliable water heaters you will ever come across. It is the best investment you will ever make.  You get to save a lot on cost. We hope that you can identify a tankless water heater that will meet your needs from our guide.

Our review gives you proper guidance on the best tankless water heater to purchase. If we were to give our recommendation, it would be Rinnai Indoor Tankless Hot Water Heater because of its all-around features.

Happy Buyers

Investing your money in a tankless water heater is a sure deal. Most of them come with a digital display and can be controlled by mobile apps. The compact and sleek designs are to die for. They also fit in small spaces so I did not have to worry about storage space when I purchased my tankless water heater!

Joe Hopkins

London

After reading through the reviews, I decided to purchase Rinnai. It is a great product. The water on the faucet or shower will have a consistent temperature. It also comes with a built-in recirculation. The unit is very quiet too.

Elsie M. Granger

Michigan

After reading your reviews on different tankless water heaters, I settled for Bosch Thermotechnology. I specifically love its compact and sleek design which fits under my kitchen sink perfectly. I would recommend this unit for anyone who desires to experience a consistent supply of hot water on their showers or faucet.

Peter Fincher

Seattle

Your reviews gave me great insight into the tankless water heater to go for. I settled for Rinkmo Electric tankless water heater which is working perfectly. It takes little about a second for water on the faucet to get warm.  We had an easy time when installing. The unit has made everything around the house so easy. I would purchase it over and over again.

Robinson Wyatt

Texas

Your review was of great help. I was able to purchase a high-quality tankless water heater that is within my budget. It is serving me well!

Jeanne M. Holm

ohio

I needed an efficient tankless water heater but I was on a low budget and through your review, I was able to purchase an EcoSmart Tankless water heater. I love its compact design that fits in any available space in the house. It is the most energy-efficient tankless water heater you will ever come across.

Lisa Guerrero

Manchester

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