Blog How to Install Your New Water Heater: A Step-by-Step Guide Jan 05, 2025

Installing a new water heater can be a daunting task, but with the right guidance, you can handle it like a pro. At Dutton Plumbing, Inc., we've compiled a comprehensive step-by-step guide to help you through the process. Whether you're replacing an old unit or setting up a new one, follow these instructions to ensure a smooth installation.

Before starting, make sure you have all the necessary tools, including a pipe wrench, tubing cutter, and adjustable pliers. It's also essential to turn off electricity or gas to the water heater and shut off the main water supply to avoid any mishaps.

Step 1: Remove the Old Water Heater Begin by disconnecting the power or gas supply from the existing water heater. Use a pipe wrench to disconnect the water and gas pipes. Drain the water heater by connecting a hose to the drain valve at the bottom and directing it into a floor drain. Open a hot water faucet in the house to speed up the draining process. Once completely drained, remove the water heater unit and dispose of it according to your local regulations.

Step 2: Position the New Water Heater Carefully position your new water heater in place. Ensure there’s sufficient clearance for maintenance and that the controls are easily accessible. If your water heater requires it, place it on a water heater stand to prevent direct contact with the floor for better maintenance.

Step 3: Connect the Water Supply Use a pipe cleaner to clean the ends of your pipes before reconnection. Connect the cold water supply line to the inlet and the hot water line to the outlet on the water heater. Ensure these connections are secure using adjustable pliers. You might need a soldering kit if your plumbing requires soldering copper pipes.

Step 4: Attach the Gas or Power Supply For electric water heaters, proceed by connecting the power supply cable to the heater’s junction box, ensuring correct grounding. If you’re installing a gas water heater, connect the gas supply line to the control valve. Use a pipe thread sealant to prevent gas leaks. After making the connection, use a soap and water solution to check for leaks by applying it along the joints and checking for bubbles.

Step 5: Fill and Check for Leaks Once all connections are made, open the main water supply and allow the tank to fill. Open a hot water faucet to let air out of the system and check the water flow. Inspect all your connections closely for any signs of leaks. If you detect any, tighten the fittings.

Step 6: Test the New Water Heater For electric heaters, switch the power back on at the breaker box. For gas heaters, carefully follow the manufacturer's instructions to ignite the pilot or burner. Set the thermostat to the desired temperature — usually around 120 degrees Fahrenheit for optimal efficiency and safety.

Congratulations, you’ve successfully installed your new water heater! Regular maintenance will ensure your system operates efficiently and lasts longer. If you encounter any complex issues during installation or prefer professional help, remember that Dutton Plumbing, Inc. offers expert services to assist you every step of the way.

This straightforward guide is designed to empower you with the skills needed for a successful water heater installation. Proper execution of these steps ensures a reliable hot water supply and contributes to home comfort and functionality.

Ready to get started? Book an appointment today.