Tankless Gas Hot Water Heater Venting

Tankless water heaters can vent through the roof or a side wall creating more flexibility and options for placement.

Tankless gas hot water heater venting.

Power vent and direct vent. Tankless water heaters use fans to blow exhaust from the unit horizontally allowing vents to terminate on the side of a house. But if you have an outdoor unit then you don t need a vent as the exhaust is already outside. However it doesn t have to be an expensive hassle to vent.

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. The reason is because like a standard water heater they create dangerous combustion gases when they fire. The gases contain carbon monoxide. See the use and care manual for important information regarding the venting installation and materials for your tankless water heater.

If you have a gas fueled tankless water heater that is installed inside the house it needs to be vented to the outside. Direct vent units pull in air from outside the house so they have two vents for intake and exhaust. Electric tankless water heaters do not need to be vented but gas tankless heaters do. Tankless water heaters are ventilated in two ways.

Tankless water heaters can be vented in two ways. It doesn t matter if the gas is natural gas or propane this fact remains the same.