Electric Tankless Water Heater Installation Requirements

Purchase the tankless water heater is the first step. There are couples of steps you need to follow to set up the water heater. You may know that it is a tricky thing to install the tankless water heater perfectly. Sometimes it occurs great injury and high risk. So, you need to follow the proper steps way so that you can avoid the high risk when you install your tankless water heater.

Here, I discuss the installation methods step by step and provide you with a simple list of elements you need to buy before installing the tankless water heater. So, follow the process directly and install your tankless water heater.

The Tools you need

  • Drill and drill kit
  • Screwdriver and flathead
  • Pencil
  • Tape measure
  • Philips head screwdriver
  • Needle Nose Pliers
  • Need an adjustable wrench
  • Pipe cutter

Electric Tankless Water Heater Installation Requirements

As I already told you that it is a risky method that you want to apply. The injury may have occurred. I explain here the only example. If you think you are not the right person to install a tankless water heater, you need to hire a plumber. You must hire a plumber who has experienced installing a tankless water heater. However, if you think that you are the right person to install the product, you can follow the below example.

Step 1: First thing you need to note that shut-down or turn off all involved circuit breaker.

Step 2: You need to close the main circuit, which is already connected with your water.

Step 3: After that, disconnect the old tankless water heater.

Step 4: Now remove the front cover screw with a screwdriver which you want to install your tankless water heater.

Step 5: Next, you need to mount the electric tankless water heater to the wall. Note, anchor and screws should be included in the package which you buy from the market.

Step 6: This is one of the major sections that you need to keep more attention to. However, you need to connect cold (right side) and hot (left side) water. After connecting it, you need to measure the tap perfectly. Besides the connection, you need to use a shut-off valve before and after the heater so that you can easily turn off the power with maintenance time.

On the other hand, it is the right time to install a pressure reduction valve for cold water, which follows incoming water pressure. The temperature and pressure relief valve (T&P)- to install on the hot water side- you need to install. I think you can understand the emergency requirement to install temperature and pressure relief.

Step 7: In this step, you need to open a more hot water outlet for some time to purge any air from the pipe and the water heater. Now you need to check out the leakage issues. If you don’t find any leakage problem, you need to close all of the outlets. It would help if you used a high-quality pipe for close outlets.

Step 8: The next step you should follow to connect the wire to perfectly make the electric connection. You must ensure that the correct wire, circuit breaker number is perfect for your control panel. You should follow the manufacturer’s instructions to check these sections. Remember, a small unit can be connected with a single circuit using 6/2 AWG wire and 50A pole breaker.

You need to connect to the unit’s grounding busbar and the circuit breaker panel for each circuit. Never mistake choosing the right wire and the pipe because of the long-time use of the tankless water heater.

Step 9: You need to check again all connect is perfect or not. Specially, you need to check out the wire that does not mix up. I hope that you never miss this section; otherwise, you may fall at great risk, and the connection is failed.

Step 10: Reattach the system’s front size cover so that you can keep yourself more secure.

Step 11: Now, it is time to turn on your circuit breaker. I hope that your tankless water heater turns on and it works fine without any issues. You need to check the hot water. Try to get hot water, and you can also check out that the tankless water heater provides you perfectly hot water.

Step 12: Now you can enjoy the hot water without any safety issues for a long-time.


You are already aware of the installation methods and also know which tools you need to install the product. Generally, it is a tricky thing, and people never take the risk of installing the product. If possible, you can hire a plumber for installing the tankless water heater. Or, if you think that you can do it, you just need to follow the upper steps perfectly.


How to install a tankless water heater is a common question, and sometimes people keep them confused with this question. Though it is a risky task, I still believe that it is possible to do. But you need some experience with electricity for installing the tankless water heater. So, what do you want to else from this article? Install your tankless water heater right now. If you are still confused, let me know in the below comment box.


About the author

Sharif Miah

I am Sharif, 22, a student, currently doing the BBA program. Besides, I am an online Blogger.

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