Congratulations on purchasing the electric tankless water heater. we are certain that you will be very happy with your purchase. Purchasing a tankless electric water heater is just the first step. The next step is that how to install an electric tankless water heater. The device must also be mounted correctly in your house. This work necessitates strong plumbing and electrical expertise, and it’s probably best left to a licensed specialist.

If you prefer to mount your new water heater yourself, be prepared to put in a couple of hours to complete the process. This content is especially intended as a guide to assist your plumber, electrician, and yourself with the installation of your new water heater.

Tools for Installation:

Below are some of the tools and equipment you’ll need to successfully mount your new electric tankless water heater:

PencilPipe Cutter
Flat Head Screw DriverTeflon Tape
Tape MeasureNeedle Nose Pliers
Adjustable WrenchPhilips Head Screw Driver

Using special union adapter sets to attach exhaust pipes to your water heater to increase the flow of water and remain ready for potential maintenance. It would be easier to maintain in the future as a result of this.

How to Install an Electric Tankless Water Heater

Steps for Installation:

Step#1 Water Heater According to Your Size:

Before we get started, I’d like to emphasize the importance of sizing the house and the electric tankless water heater when selecting a water heater. Before you begin your installation, make sure your device can provide the performance you need.

Step#2 Remove Old Water Heater:

Remove the old water heater and disconnect the inlet water supply and outlet water supply.

Step#3 Mount it On Wall:

When assembling an electric tankless water heater, you would most likely be mounting it on the wall.

Step#4 Add Water Supply

After that, you’ll need to add your water supply to the unit’s inlet side. The tubing will then be connected to the water heater outlet fitting to supply hot water to the rest of your home.

Step#5 Double Check the Plumbing Connections:

connect the hot water supply and double-check that all of the plumbing connections are safe, and then switch on all of your home’s fixtures to clear air from the water lines.

step#6 Add and Exhaust:

The heat and gas generated by heating the water inside the on-demand tankless water heater is considerable. You’ll need to remove it from the device. You would need to add an exhaust to it for this reason. It would lose its gas as a result of this. Connect this flue to a pipe that will allow the gas to escape into the atmosphere. Connect this pipe so that it can exit the building.

Step#7 Proceed Electrical Wiring:

You can now proceed to the electrical wiring. It would help if you used the correct wiring for your particular device. For the electric water heater, Two sets of 8 AWG wires and ground wire are needed. Attach the cables to your device first, then to the circuit breaker on the other side of the cable. And for the water heater, two 40 amp double pole breakers are required.

Step#8 Put The Cover Back:

Put the back cover on your device now that you’re completely attached. If the power is switched on, you can change the knob to set the outlet temperature on your digital monitor.

Step#9 Double Check the Wire Connection:

Double-check that the wires are wired correctly. Before turning on the power at your breaker panel.

Step#10 Ready to Use:

Congratulations on your achievement! With your new electric tankless water heater, you will now taste a limitless hot water heater.


Make sure you read the tankless water heater’s handbook thoroughly prior to installing it. If a registered professional plumber does not install the item, the company’s guarantee may be voided.


How to Install an Electric Tankless Water Heater? You can install a tankless water heater yourself. But for safety reasons, it is necessary to have it installed by a qualified plumber. Because this consumes less time and, in the long term, better results.

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