How To Mount A Gas Wall Heater. Be aware that there will if your water heater is gas, you will need to hook up a gas supply line from the stub at the wall to the new water heater. Your gas wall heater will come with a manual or template provided by the manufacturers.
Troubleshoot, repair or install gas wall furnaces or get gas wall furnace this article series describes wall mounted furnaces used for home heating.
Route water supply pipes to the water. They are smaller than conventional storage heaters, are wall mounted and do not take up floor space. If the job is bigger than you want to tackle, you can always hire a professional plumber. The gas supply valve might be turned off.