Venting Tankless Water Heater Into Furnace Exhaust

Outside tankless water heaters free up indoor space.

Venting tankless water heater into furnace exhaust.

Installing your tankless water heater for easier venting to make venting easiest install your tankless water heater on an outside wall. Direct vent and power vent. Vent adapter is needed to connect the water heater which is tankless to the exhaust hose. Tankless water heater venting features.

Select either an adapter of three inch or an adapter of four inches depending on what water heater model you decide. Remove the flue pipe. Tankless water heaters can be vented in two ways. Remove the anchoring screw from the base of the flue pipe.

Tankless water heaters are vented in two ways. You furnace vent pipe is probably type b vent and not suitable for this use. A high e furnace has separate venting which leaves the existing vent pipe to serve only the water heater. This will prevent the water heater from turning on and burning you with exhaust gases.

Always follow the manufacturer s installation instructions exactly. Set the water heater thermostat to its lowest setting typically the vacation setting. It would be a potential fire hazard. Indoor tankless water heaters draw in outside air.

Tankless units withstand below freezing temperatures. 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. Tankless water heaters don t always need two ventilation pipes even for direct vent units. Facts about tankless water heater venting.

Gas tankless water heaters don t have to use indoor air for combustion. 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. All emission of liquid or gas water heaters which are tankless needs vent pipes made of stainless steel and approved by ul.