Venting Tankless Water Heater Into Furnace Exhaust

All emission of liquid or gas water heaters which are tankless needs vent pipes made of stainless steel and approved by ul.

Venting tankless water heater into furnace exhaust.

Direct vent and power vent. Tankless units withstand below freezing temperatures. It would be a potential fire hazard. This will prevent the water heater from turning on and burning you with exhaust gases.

Set the water heater thermostat to its lowest setting typically the vacation setting. Tankless heaters put out a lot of heat. Select either an adapter of three inch or an adapter of four inches depending on what water heater model you decide. Tankless water heaters are vented in two ways.

Remove the flue pipe. Tankless water heaters can be vented in two ways. Outside tankless water heaters free up indoor space. Tankless water heaters don t always need two ventilation pipes even for direct vent units.

Remove the anchoring screw from the base of the flue pipe. Always follow the manufacturer s installation instructions exactly. 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. Installing your tankless water heater for easier venting to make venting easiest install your tankless water heater on an outside wall.

Facts about tankless water heater venting. Vent adapter is needed to connect the water heater which is tankless to the exhaust hose. The existing vent pipe is typically too large and must be replaced with one of a smaller dimension so the water heater can heat the vent enough to ensure exhaust gases rise out of the home. Tankless water heater venting features.

Indoor tankless water heaters draw in outside air. Typically they require stainless steel triple wall venting. Gas tankless water heaters don t have to use indoor air for combustion.