Venting A Gas Water Heater Through Wall

I recently inspected a split level home with a utility room that includes a 90 efficiency furnace and an electric water heater.

Venting a gas water heater through wall. 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 direct vent water boiler is another type of water heater venting that you should know about. This vent also allows for off gasses to be unleashed outside too. With a direct vent system air for combustion is drawn from a vent pipe that runs through an exterior wall or the roof.

The buyer wants to replace the electric water heater with gas. The question is does it have to vent through the roof. A power vent water heater will cost about the same as a tankless heater and avoiding a through the roof vent can make the difference in a tankless installation being affordable or not. Direct vent water heaters.

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. 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. And if he vents it through a side wall what would be the considerations.