What Is the Best Point of Use Tankless Water Heater

point of use tankless water heater

Point of Use Tankless Water heater is heating machines installed in various apartments to offer instant hot water. If you are looking for the perfect small water heaters, make sure that you research and know some of the buying factors that you need to consider. When you have the right information, it becomes easy to make the recommended choice. We have listed essential details that will help you know a lot about tankless water heaters and make the right choice.

point of use tankless water heater

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What Is a Point of Use Tankless Water Heater?

The point of use tankless water heater is a heating device installed across or near the application fixture. It is small, and this indicates that it has a low flower rate. Most homeowners consider using it for indoor use only. It can meet the demand of your kitchen faucet and your one bathroom only.

With this heating tool, you will notice that it has a wide range of applications due to its compact and small shape. Ideally, you can use it for traveling, camping, RV, or a little tiny home. If you have the traditional water heating tools, you can decide to hook it up to help reduce the waiting time for hot water.

It is vital to understand that the best point of using a tankless water heater can offer you the best experience in hand-washing and bathing. To get the right and suitable tool, make sure that you research and know the right buying factors that you need to consider before making your selection.

Recommended Point of Use Tankless Water Heaters on the Market

How to Install a Point of Use Tankless Water Heater

Even if this may sound obvious, it is crucial to understand that point of use tankless heaters can save you a lot of money when used correctly. For you to ensure that it is working correctly, it should be installed correctly.

The process of installing this type of heater can be different from others since most of these heating tools come with various features. First, before you start installing them, you should understand the places that you need to install. It will be easy to make the right decision. The following are the essential steps you should consider when installing a point of use tankless water heater.

point of use heaters for under sink

The Size of the Heater

Before you commence your installation, one of the things that you need to know is the size of a tank water heater that you have. For instance, it is said that if one gallon runs out before hot water arrives, then a three-gallon water heater is the right size for you.

Consider Hot and Cold Inlets

After identifying the size of your tankless water heater, the next step is to pay strict attention to hot and cold inlets. You need to understand that if you have a tank where hot-cold inlets are reserved, note that the container will not perform as required. Note that the incoming cold water should be connected to a raw channel at the bottom of the water heater.

Connect the Heater to Cold or Hot

Once you have completed checking on the inlets, the next crucial step is to connect the heater to a cold or hot source. In this section, you will have two choices. First, if you decide to link to the hot source, remember that this option will draw hot water from the central water heater, and if the under-counter tank runs out of hot water, you will have more water from the main tank the temperature will always stay warm. On the other hand, if you want to use your heater for hand-washing purposes, then ensure that you connect to the cold source.

Earthquake Safety

When you are installing water heaters, another vital thing that you need to consider is the earthquake areas. Make sure that you secure a water heater to avoid electrical and pipes coming loose. Also, ensure that the electrical connections are properly sealed in an electrical rated box. Lastly, ensure that the electrical connections are at the top.

Fill the Tank

Before you start applying power on your tankless water heater, it is advisable to fill the tank with water. Ensure that the tank is full until the faucet is running a total of a stream. After it is full, power can be turned on.

How Much Does it Cost to Install a Point of Use Tankless Water Heater?

It is critical to understand that water heaters are an integral part of the plumbing systems. Surprisingly, consumers are now turning to tankless water heaters due to the various benefits that they offer. As mentioned earlier in this post, these heating tools heat only the water that you use. Once you have decided to use it, make sure that you understand the average cost of installing them.

Installation Cost

Those consumers who consider hiring a professional are likely to pay either a flat fee or an hourly fee. Ideally, the average hourly rate of installation cost from a professional plumber falls between $50 and $150 per hour.

The Cost Factors

The most influential cost factors are the type of heating equipment that you choose and labor. On the other hand, consumers are also asked to calculate labor and material for the necessary parts. Therefore, it is approximated that installing a tankless water heater is around $2500 and $4500.

Which Fuel Source Is Best for a Point of Use Tankless Water Heater?

We have the three primary fuel sources of a tankless water heater. Propane, natural gas, and electricity are the sources that you can consider choosing. However, it is advisable to determine your needs to know the right source that you will use. Here are the factors that will identify the right source that you will pick.

Your Tankless Heater Use

When you want to pick the perfect source for your tankless water heater, make sure that you start by identifying your needs. For instance, if you are looking for a unit that is only going to be used in your bathroom, you may choose an electric heater.

Available Types of Energy

It is essential to consider the available types of energy to know the right one that will suit you. If you have solar, natural gas, propane, and electricity take your time to compare each type of energy’s rates before making your final decision.

How to Install a Bosch US3 Tankless Point of Use Water Heater

The installation of Bosch water heaters varies according to the type or model. On the same note, it is vital to understand that the most straightforward point of use heaters are also the easiest to install. When you are installing these tools, there are various options that you can consider depending on your needs. You can hire an expert or read the manual guide to know the steps that you need to follow. Here are some of the steps to consider.

bosch tankless water heater
Bosch US3 Electric Tankless Water Heater

Read the Manual Guide

When you want to install any form of tankless water heater, make sure that you start this process by reading the user guide. It can be easy for some people to install a tankless water heater provided they have all the tools required. If you find it hard, you can go to the next step of looking for an expert to help you out.

Identify the Right Power Source

When installing a tankless water heater, you have a variety of options to consider when it comes to a power source. For instance, if you are going for a gas model, make sure that you already have a gas line and check if you need venting. Ideally, identifying the power source can also help you know the tools you need to possess.

Safety Guidelines

The process of installing Bosch water heaters can be complicated when you do not know the safety tips you need to consider. In some cases, it is crucial to deal with an experienced technician when installing Bosch water heaters. Always remember that when you receive installation services from an unlicensed handyman, you will void your warranty.

How to Achieve Instantaneous Hot Water Utilizing a Point of Use Water Heater and Tankless Water Heater

Regardless of the energy source that you use, it is essential to understand that tankless water heaters provide several performance features that make them the best and preferred option across the globe. It has been discovered that instantaneous hot water systems offer higher energy efficiency and compact size than other storage heaters.

If you want to get hot water using your point of use water heater, make sure that you consider the following steps.

Recirculating Hot Water Systems

With the traditional tank water heaters, it can take an extended period to get hot water. But with the sharp point of use water heaters, it can be easy to get hot water faster. The first step here is to recirculate your hot water systems. Since hot water is always circulating through the systems, it is advisable to recirculate them.

Get Hot Water Systems

In a situation where you are using a point of use tankless water heater, you need to remember that they only work or operate where there is a demand for hot water. It is also critical to understand that a tankless water heater will start operating after the request is made. That is why you need to have hot water systems to get instant hot water at the faucet.

What is the Difference between a Tankless Water Heater and a Point of Use Water Heaters?

  • Point of Use Water Heaters

Point of use water heaters is the small heating devices that are designed to operate indoors for a specific function. They are built as gas or electric powered. Also, they heat water instantly and supply to one fixture with hot water. You can consider to use them in an existing or new system. In most cases, they are installed under the bathroom and kitchen sink.

Advantages of Point of Use Tankless Water Heaters

As mentioned earlier, there are many benefits that one can get by using point of use tankless water heaters. Ensure that you pick the right model, depending on your needs. With the correct type of point of use water heaters, the following are the benefits that you will get.

High Temperatures and Water Pressure

It is crucial to note that older buildings have flaws in their building envelope design. In most cases, you will find out that specific pipes do not offer as much pressure as others. But using the sharp point of use water heater will help homeowners benefit from quicker water heating times.

Free Up Space

It has been discovered that most of the tankless water heaters are smaller and do not consume a lot of space. If you are limited to space, this is the right heating tool that you need to have.

System Durability

When you are buying any tool, make sure that you consider its durability. Purchasing a point of use water heaters can help you save a lot of money since their life can go up to fifteen years.

Recommended Point of Use Tankless Water Heaters

  • Tankless Water Heaters

It is advisable to understand that on-demand or a tankless water heater only heats water when required. You can choose to install them on an exterior wall or in a closet. They provide you an endless source of water, which is why they are gaining a lot of popularity.

Benefits of Tankless Water Heater

Instant Hot Water

When you have tankless water heaters, you will have the option of turning any water source into hot water. With this heating device, you will get endless hot water to suit your lifestyle demands.

Fresh Water

It is crucial to understand that traditional water heaters can build up scale and rust inside the tank. But with tankless heaters, you will get clean water since it is only heated on demand.

Recommended Tankless Water Heater For Shower Use

Why Not Use Point of Use for Whole House Tankless Water Heater

Point of use water heaters is recommended for homes and where a small amount of hot water is required. That is why you cannot consider using it for whole-house needs. Once you install it close to the water pipes, heated water is delivered fast, and this results in increased comfort, fast installation, time, energy, and space-saving.

best under sink water heaters

What Size of Point of Use Tankless Water Heater for Kitchen Sink

Tankless water heaters are rated by the temperature rise at a given flow rate. If you want to determine the size water heater for your kitchen sink, you need to identify the temperature rise and the flow rate you will need for its application. Below are the factors that will determine the right size tankless water heater.

Determine the Required Temperature Rise

When you want to identify the temperature rise, make sure that you subtract the incoming water temperature from the output temperature. But if you live in a warm climate, note that your water temperatures are likely to be higher.

Identify Your Power Source

Another factor that you need to consider when considering the size of your tankless water heater is the power source. In most cases, most people consider electric water heaters because they are simple to install, and they are affordable.


Finding the right point of use water heaters can take a little time when you know the buying factors to consider. They are the best water heaters that can provide you with many benefits that will suit your needs. Ensure that you make the right choice and pick the right model.


David: Penn State-educated Mechanical Engineer and Business-savvy Fluid Dynamics Specialist. Balances family plumbing business support with a thriving engineering career at a top, undisclosed company. (they want it that way) I help Will with plumbing and HVAC needs on his Real Estate.

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