How To Vent A Water Heater Through A Wall. Yes, all water heaters required to be vented outdoors. Instead, both systems typically expel exhaust through a pipe that runs outside through an exterior wall.
Aside from that there isn't much difference, aside from not needing a double wall flue through the roof on a standard gas water heater.
The water heater is in the basement. · training in installation of tankless water heaters. Which product is best for me? The duct may be metal or plastic, depending on the type of vent system.