Learn how to replace a gas hot water heater with the step by step instructions in this video.
You will need wrenches and other common plumbing tools. You will also need pipe joint compound or Teflon® tape. You can make gas leak detection solution with children’s soap bubbles or dish washing liquid. For copper pipes, you can purchase an installation kit that does not require soldering.
First, make sure the gas supply and gas control knob have been turned off. Let the hot water run until cool. Drain the water from the hot water heater. Remove the discharge pipe from the old temperature and pressure relief valve. Disconnect the vent pipe and union and remove the gas pipe.
If soldering pipe, do not solder pipes while they’re attached to the water heater. Instead, solder to an adapter and install the adapter with pipe joint compound or Teflon® tape. Install a thermal expansion tank. Check the home’s water pressure. Attach the discharge pipe. Do not cap or plug the discharge pipe.
Install the new draft hood and attach the vent pipe. Install the gas pipe. Turn the gas supply on and check for leaks. Correct any leaks and retest. Turn the cold water supply on and check for water leaks. Open a hot water faucet and allow the water to run full for 3 minutes. Install the air filter and vacuum occasionally.
To light a water heater, turn the control knob to pilot and press the knob fully. Hold the knob in and click the igniter button once per second until the status light begins to blink. Once the red status light is blinking, release the knob and set the temperature to the desired setting.
Find gas water heaters at http://www.Lowes.com/WaterHeaters
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