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.

The buyer wants to replace the electric water heater with gas. The direct vent water boiler is another type of water heater venting that you should know about. Likely it would have to be some specific minimum distance from any. 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.

Also you need to be aware of combustion air intake requirements for any type of heater. The question is does it have to vent through the roof. This vent also allows for off gasses to be unleashed outside too. Direct vent water heaters.

With a direct vent system air for combustion is drawn from a vent pipe that runs through an exterior wall or the roof. And if he vents it through a side wall what would be the considerations. 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.