June 25, 2024

The Easy Way: Step-by-Step Guide for How To Install A Tankless Electric Water Heater

Are you looking for an easy way to install a tankless electric water heater in your home? In this blog we will guide you In this step-by-step guide, we’ll walk you through the entire process, from prepping the area to connecting the water heater to the power source. With just a few simple tools and some careful preparation, you can have your tankless electric water heater up and running in no time. Let’s get started!


Before you start installing your tankless electric water heater, there are a few things you need to do to prepare. Here are the steps to follow:

  1. Choose the right location: Decide where you want to install the water heater. It should be in a place with proper ventilation and easy access for maintenance.
  2. Check electrical requirements: Tankless electric water heaters need a lot of power. Make sure your electrical panel can handle the load and that you have the right wiring and circuit breakers.
  3. Gather tools and materials: You’ll need a few tools to install your new water heater, including a drill, pipe wrenches, pliers, a voltage tester, and a level. You’ll also need piping and fittings, as well as Teflon tape and sealant.
  4. Turn off the power and water: Shut off the electricity and water supply to your old water heater. This will prevent accidents and damage during the installation process.
  5. Drain the old water heater: Drain the water from your old water heater before disconnecting it. You can also use the garden house for this.

By preparing properly, you’ll make the installation process go more smoothly and minimize the risk of accidents or mistakes. With these steps completed, you’re ready to move on to disconnecting the old water heater.

Disconnecting the Old Water Heater

Before installing your new tankless electric water heater, you need to disconnect the old one. Follow these steps:

  1. Turn off the power supply: Turn off the electricity or gas supply to the old water heater. You can do this by turning off the breaker switch or gas valve connected to the water heater.
  2. Shut off the water supply: Close the cold water valve connected to the water heater. If you have a hot water valve, shut it off too.
  3. Drain the old water heater: Connect a garden hose to the drain valve at the bottom of the old water heater. Open the valve and let the water drain completely.
  4. Disconnect the water and gas/electric connections: Remove the water supply lines from the old water heater using a wrench. Then, disconnect the gas or electric connections as well.
  5. Remove the old water heater: Remove the old water heater carefully, making sure not to damage any pipes or connections.

With the old water heater removed, you’re ready to install the new tankless electric water heater. Follow the next steps to install the new unit easily and efficiently. With our guide on how to install a tankless electric water heater, you’ll be able to complete the process quickly and safely.

Installing the New Water Heater

After you have successfully removed the old water heater, it’s time to install the new one. A tankless electric water heater is a bit different from a traditional one, so make sure to follow the instructions provided with your specific model.

Step 1: Choose the Location

The location of the new water heater is critical. Ideally, it should be placed near the source of the water supply to avoid wasting hot water while waiting for it to travel from the water heater to the faucet. It should also be near the electrical panel for easy connection. Make sure that the area is clean and free from any obstruction.

Step 2: Mounting the Water Heater

The new water heater needs to be mounted securely to a wall or other suitable surface. Make sure that you follow the manufacturer’s instructions carefully, and use the appropriate hardware for the job.

Step 3: Attaching the Fittings

Attach the water supply and discharge fittings to the water heater. This will vary depending on the type of water heater you have purchased, but most will have clear instructions provided.

Step 4: Connecting the Electrical Supply

Before you connect the electrical supply to the water heater, turn off the main power to your home to avoid any accidents. You should have a dedicated electrical circuit for your tankless electric water heater. Make sure that the circuit is appropriately sized for your specific model.

Step 5: Turn on the Water Supply

Now it’s time to turn on the water supply to the water heater. Check for leaks around the fittings and connections to ensure that everything is tight and secure. Once everything looks good, you can proceed to turn on the electrical power and test the water heater.

Installing a tankless electric water heater may seem complicated at first, but with the right instructions and a little bit of patience, you can easily install it yourself. Make sure that you take all necessary safety precautions, follow the instructions provided with your specific model, and contact a professional if you are unsure about any part of the process.

Connecting the New Water Heater

Now that the tankless electric water heater is in place, it’s time to connect it to your home’s water supply and electrical system. Here’s how:

  1. Connect the water supply: First, attach the hot and cold water lines to the appropriate ports on the water heater.
  2. Connect the electrical wiring: Depending on the model you have, you may need to wire the heater directly into your home’s electrical system, or it may simply require a standard 110/120-volt outlet. If you’re not comfortable working with electrical wiring, hire a licensed electrician to help you.
  3. Install a shut-off valve: To prevent flooding in the event of a leak or malfunction, install a shut-off valve on the water line that feeds into the water heater. This way, you can quickly cut off the water supply to the heater if needed.
  4. Test the water heater: Once everything is connected, turn on the water and electricity to the heater, then test the hot water at a nearby faucet to make sure it’s flowing properly. If you notice any issues, double-check your connections and troubleshoot as needed.

Congratulations! You’ve successfully installed your new tankless electric water heater. Now, sit back, relax, and enjoy a constant supply of hot water without the hassle of a bulky storage tank.

Finishing Up

Conclusion homedesignlooks

Once you have successfully installed your new tankless electric water heater, there are a few things left to do before you can sit back and enjoy a hot shower.

Firstly, make sure to check for any leaks in the water pipes or fittings. Turn on the hot water and check for any water leakage around the unit. If you find any leaks, shut off the water supply and tighten the fittings until they are secure.

Next, turn on the power supply to the water heater and wait for it to heat up the water. Check that the hot water is flowing from the tap and adjust the temperature settings if necessary.

Finally, clean up the installation area and dispose of the old water heater properly. Remember to read the manufacturer’s instructions for any specific cleaning or maintenance requirements for your new water heater.

Congratulations! You have successfully installed your new tankless electric water heater and can now enjoy endless hot water without the hassle of a bulky and inefficient tank system.

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