Venting A Gas Water Heater Through Wall

The buyer wants to replace the electric water heater with gas.

Venting a gas water heater through wall.

Likely it would have to be some specific minimum distance from any. I recently inspected a split level home with a utility room that includes a 90 efficiency furnace and an electric water heater. The direct vent water boiler is another type of water heater venting that you should know about. The air that is used for combustion will come from the water vent this vent will either through the roof or from the outside of the wall.

This vent also allows for off gasses to be unleashed outside too. Direct vent water heaters. Also you need to be aware of combustion air intake requirements for any type of heater. In comparing the venting of exhaust gases from a high efficiency furnace boiler or water heater with the venting of exhaust gases from a conventional heating system it will be immediately obvious that the high efficiency equipment exhaust is produced at a low enough temperature that it is vented through comparably small diameter plastic piping rather than a cooled fire protected metal.

Exhaust gases are vented outdoors through a separate vent duct or through a separate chamber of the same pipe this requires a double wall vent duct. The question is does it have to vent through the roof. With a direct vent system air for combustion is drawn from a vent pipe that runs through an exterior wall or the roof.