Tankless Gas Hot Water Heater Venting

It doesn t matter if the gas is natural gas or propane this fact remains the same.

Tankless gas hot water heater venting.

Tankless water heaters can be vented in two ways. All indoor tankless gas water heaters must be vented vertically or horizontally to the outdoors using factory approved venting material no other venting material is permitted. But if you have an outdoor unit then you don t need a vent as the exhaust is already outside. Traditional gas tank water heater require venting through the roof.

The gases contain carbon monoxide. If you have a gas fueled tankless water heater that is installed inside the house it needs to be vented to the outside. Tankless water heaters are ventilated in two ways. The reason is because like a standard water heater they create dangerous combustion gases when they fire.

Tankless water heaters can vent through the roof or a side wall creating more flexibility and options for placement. Power vent and direct vent. Direct vent units pull in air from outside the house so they have two vents for intake and exhaust. Tankless water heaters use fans to blow exhaust from the unit horizontally allowing vents to terminate on the side of a house.

Direct vent units attract outside air from the house or building while power vent units solely need an exhaust vent and should be installed in a larger area for receiving sufficient air amount for combustion. Electric tankless water heaters do not need to be vented but gas tankless heaters do.