Tankless Water Heater Exhaust

Direct vent units pull in air from the outside so they have two vents for intake and exhaust.

Tankless water heater exhaust.

Tankless water heaters are ventilated in two ways. If a tankless water heater is not vented properly a number of things can happen. Tankless water heaters use fans to blow exhaust from the unit horizontally allowing vents to terminate on the side of a house. Condensing tankless water heaters lower the cost of installation.

Power vent units use indoor air for combustion and simply vent the exhaust to the outside. Tankless water heaters can be vented in two ways. See the use and care manual for important information regarding the venting installation and materials for your tankless water heater. The exhaust vent can therefore be pvc or polypropylene and not metal a feature that lowers.

Power vent units use indoor air for combustion and simply vent the exhaust to the outside. All of them unpleasant and some quite dangerous. Power vent and direct 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 exhaust is a gas condensate that is highly acidic and corrosive to the venting so they require the right material. Tankless water heaters can be vented in two ways.