It is not necessary venting tankless water heaters through the roof.
Venting a water heater through a sidewall.
This is an atmospherically vented water heater that is vented through the side wall of the home.
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.
Twilliams15 tim williams cpi april 3 2019 7 50am 1.
The vents in these units can terminate on a sidewall since their combustion fans blow exhaust horizontally unlike storage tank water heaters that work through draft allowing hot exhaust air to rise up and out of the facility.
Can a water heater be vented out through a sidewall.
With a direct vent system air for combustion is drawn from a vent pipe that runs through an exterior wall or the roof.
Direct vent water heaters.
On 2019 11 07 by harry.
Thanks for any info.
Venting a conventional or typical gas fired water heater straight out through a sidewall using plastic pipe would be failure to follow the manufacturer s instructions and most likely would be unsafe.
Most tankless heaters are also designed for sidewall venting.
Water heater venting out side wall.
On 2019 11 11 by mod vent gas water heater out through side wall with pvc.