How To Replace A Gas Wall Heater. Similar dimensions will reduce the amount of work needed to replace the old wall heater, especially if your heater is mounted in the wall as opposed to on the. Replacing a water heater will require you to make both plumbing connections as well as wiring or gas hookups, plus a vent connection if you have a gas heater.
Turn off the gas line that is connected to your wall heater (if using a gas unit).
The entire water heater needs to be replaced. Some natural gas wall heater brands sold at the home depot include williams and broan. How to replace an oven heating element february 25, 2015. Turn off the gas line that is connected to your wall heater (if using a gas unit).