Condensing Tankless Water Heater Venting

Vent to the outside.

Condensing tankless water heater venting.

The remaining heat creates a hot exhaust gas that requires metal venting typically stainless steel or thick aluminum. Installing your tankless water heater for easier venting to make venting easiest install your tankless water heater on an outside wall. If the unit is installed on a basement wall the vent pipe can be run up just a few feet and then vented out the side with the use of a 90 degree elbow. Condensation tankless water heaters minimize the value of the installation.

Special stainless steel pipe. If a tankless water heater is not vented properly a number of things can happen. The exhaust is a gas condensate that is highly acidic and corrosive to the venting so they require the right material. The standard galvanized vent from your old storage tank heater would quickly rust away if your tankless heater vented.

Tankless water heaters can vent through the roof or a side wall creating more flexibility and options for placement. With a condensing tankless water heater you don t need metal venting. Traditional gas tank water heater require venting through the roof. The tankless heater cannot share vent piping with any other appliance and it cannot use a masonry chimney flue for venting.

The exhaust vent is also made of pvc or plastic and not metal which a feature that reduces the value of the installation. All of them unpleasant and some quite dangerous. Here are a few things your installer should consider for effective tankless water heater venting. Tankless water heaters that have a coaxial vent style provide further safety advantages.