How to Install a Tankless Water Heater?

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What Is a Tankless Water Heater?

A tankless water heater, just as the name implies, is a water heater system that does not have a storage tank. This is also referred to as on-demand or instant water heater, with the main advantage being that it is energy efficient. You will be able to get hot water when you need it and you will not have to worry about the water turning cold.


How to Install a Tankless Water Heater

Do You Want to Install a Tankless Water Heater?


If you are the DIY enthusiasts, this will be a great project to try out. However, you would need to have exceptional plumbing skills to accomplish this. Basically, you should be able to shut off the water supply, cut and fit pipes and other plumbing accessories. With this basic plumbing skills, you can be able to install a tankless water heater.

However, if you are not sure about the process, you can have a professional expert handle this for you. This will eliminate any guesswork, which may end up being disastrous.


Preparation of the Tankless Water Heater:


There is some preparation that should go into the whole process. This should be done before disconnecting the current water heater in your home. The preparation is aimed at ensuring that you will not be cut off the water supply while the plumbing, vent or electrical works are ongoing.

If you have chosen to have a new gas unit installed, you should confirm if the gas meter needs to be upgraded. The modern units may be too advanced, making it difficult to the meter to cope with the supply of the gas to other units in your home. Due to the delicate nature of the process, you can have the gas company work and give recommendations. The experts will also check if the meter will be able to supply the required pressure for the new unit.

Should the need arise to install a new gas line, the best option would be to hire a professional plumber, who is licensed to carry out such tasks. Gas can be hazardous and as such, all the safety precautions should be factored in.


When to Install a Tankless Water Heater?


Installation of the tankless water heater is the best decision that you can make. This is the best replacement for the traditional water heating systems. If your water heater is clogging the water pipes, due to the buildup of debris and other minerals, you should consider having the tankless water system.

Additionally, if the water heater has not been heating up the water as required, it is time to move to the modern tankless water heater. This will heat up water, when you need it, which is quite effective and economical, as far as energy consumption goes. The tankless water system is one of the best ways to improve the water heating process in your home.


Steps to Install Tankless Water Heater:


Choosing to install a tankless water heating system is the best decision that you can ever make. Here are the steps that you would need to follow


Step 1: Caution:

It is important to note that the tankless water heaters come with a gas or electric supply lines that have a larger diameter and a higher power supply voltage. The exhaust system also has a larger diameter and there is special stainless steel flue. If you are planning to do it yourself, take these things into account.

Step 2: Use a Special Union Connector:

You should make a point of using the special union connector sets while installing the tankless water heater. This should be used for the water supply, with the bypass capability and the use of it will make the de-liming process much easier.

Step 3: Shut Off the Main Water Line:

Before attempting the installation of the tankless water heater, you should establish where to turn off the water flow into the house.

Step 4: Disconnect Water Supply Line:

Detach the supply line from the existing water heater system.

Step 5: Disconnect Heat Source:Install Tankless Water Heater

The next step is to disconnect the heat source from the old water heater. This can be either the gas or electric source.

Step 6: Remove Old Water Heater:

When you have disconnected all the components from the old water heater, remove it from the space it is fitted.

Step 7: Prepare the New Tankless Water Heater for Installation:

Unpack the tankless water heater and go through the instructional manual.

Step 8: Identify the Location to Place it:

Find the ideal location to fit the tankless water heater. Ensure that there is sufficient clearance around the place you choose.

Step 9: Mount the Tankless Water Heater:

Use the instructional manual to mount the heater and ensure that you have put measures in place to support its weight.

Step 10: Connect the Water Line:

This is one of the steps that you should be keen on. You should start by connecting the water supply line and note that this tankless water heater has a special flue.

Step 11: Connect the Heat Source:

If you intend to use gas or electric, connect the supply line to the water heater. If you will be using electricity, plug in the tankless water heater to the wall.

Step 12: Light the Pilot:

Use the instructional manual to light the pilot on your gas tankless water heater and you will be good to go to take a hot shower. This will produce hot water endlessly.


Tips:

  • You should ensure that there are adequate amps to run the tankless water heater. In addition to this, the system may require a total of 3 circuits in the circuit box.
  • When buying your electric water heater, check to ensure that it connects to the standard power outlet. In the event, you have purchased it and it has different voltage, from the one in your house, you should hire a professional electrician to connect it for you.

Warnings:

  • Before commencing the process of installing your tankless water heater, check with your local building code enforcement. This will give you guidelines and codes for this process.tankless water heater install warning
  • You should have sufficient water pressure to run the tankless water system.
  • Take time to read all the instructions provided in the manufacturer’s manual. In some cases, for the warranty to be valid, the tankless water heater must be installed by a certified installer.
  • If the tankless heater requires a larger exhaust or supply line, you should have a professional electrician or plumber set it up for you.
  • If you intend to use gas as the heat source for the tankless water heater, you should test the connection. Apply soapy water to the union and if you notice bubbles, this indicated poor connection and the gas is leaking out. You should turn off the gas and open all doors and windows to have proper ventilation. Let all the gas clear out and then try to connect the gas supply line properly. Once you have reconnected it, test again.
  • If your are looking for information about “How To Choose The New Water Heater” go here

With all these guidelines, tips and warnings, you should be in a position to install a tankless water heater without a problem. However, if you are not confident, you should hire a professional installer.

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Hey there, my name is Erik Larry, glad you found your way here. With my great experience with water heaters, you will be able to learn a whole lot on Sweet Home Insider. I have been installing and maintenance the water heaters for a number of years, and as a result, I have gained vast experience in this field. If you have any questions or comments, feel free to get in touch.