Venting Tankless Water Heater Into Furnace Exhaust

Remove the anchoring screw from the base of the flue pipe.

Venting tankless water heater into furnace exhaust.

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. Select either an adapter of three inch or an adapter of four inches depending on what water heater model you decide. Set the water heater thermostat to its lowest setting typically the vacation setting. Facts about tankless water heater venting.

Tankless water heaters don t always need two ventilation pipes even for direct vent units. Tankless water heater venting features. They are there for a reason and they supersede building code. Typically they require stainless steel triple wall venting.

Gas tankless water heaters don t have to use indoor air for combustion. Indoor tankless water heaters draw in outside air. Tankless heaters put out a lot of heat. Remove the flue pipe.

A high e furnace has separate venting which leaves the existing vent pipe to serve only the water heater. 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. Tankless water heaters can be vented in two ways.

Always follow the manufacturer s installation instructions exactly. This will prevent the water heater from turning on and burning you with exhaust gases. All emission of liquid or gas water heaters which are tankless needs vent pipes made of stainless steel and approved by ul. Tankless water heaters are vented in two ways.

Tankless units withstand below freezing temperatures. It would be a potential fire hazard. 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.