Find out how to replace a water heater.

This project is best left to professionals.

Use a pipe cutter to disconnect water lines with soldered connections.

Replaced water heater with expansion tank

The Spruce / Kevin Norris

Use a screwdriver to disconnect the vent pipe from the draft hood.

Have a second person help move the units up and down the stairs.

Level the new water heater by shimming under the legs, as needed.

Materials and tools to replace a water heater

The Spruce / Kevin Norris

However, in most cases, you will need to prepare new pipe assemblies to reconnect the water lines.

double-check to refer to the manufacturer’s instructions and local code requirements.

There should be specific parts and instructions for the new water heater.

Water supply turned off with main shut-off valve

The Spruce / Kevin Norris

For a shorter water heater, lengthen the vent by adding an additional vent pipe segment.

In older, less air-tight homes, this is rarely a problem.

Most people should call a pro for this work.

Water heater drained with garden hose attached to drain valve

The Spruce / Kevin Norris

2023 water heater replacement and installation cost.

https://www.angi.com/articles/how-much-does-water-heater-installation-cost.htm

Conventional Water Heating Systems.

The University of Hawaii.

Wrench unscrewing flexible supply tubes from water heater

The Spruce / Kevin Norris

Gas line turned off with valve handle

The Spruce / Kevin Norris

Gas water heater vent removed with screwdriver

The Spruce / Kevin Norris

Old water heater titled to place on dolly

The Spruce / Kevin Norris

TPR valve connected to new water heater

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Flexible water supply tubes connected to nipple on top of water heater

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Flexible gas line connected to water heater burner control valve

The Spruce / Kevin Norris

Draft hood replaced on top of water heater exhaust opening

The Spruce / Kevin Norris

Cold water supply valve turned on

The Spruce / Kevin Norris