Tankless Water Heater Venting With Furnace

Indoor tankless water heaters draw in outside air.

Tankless water heater venting with furnace.

Venting tankless water heater into furnace exhaust i had been considering a tankless water heater but installing the vent seemed like it would be more expensive to install than the water heater. Most of the time tankless water heaters are side vented out of a wall not vented through the roof though roof venting is allowed as long as the total length doesn t exceed the specified maximum the large and modulating burners on tankless units usually require a dedicated 1 1 4 gas line from the regulator meter and the water heater too. Tankless units withstand below freezing temperatures. See the use and care manual for important information regarding the venting installation and materials for your tankless water heater.

Yes venting tankless water heater with furnace is possible. No they don t need to be vented. This is because most homes have water heaters and furnace sharing the same exhaust vent. To test for proper water heater venting.

Facts about tankless water heater venting. Gandy installations saves customer enough space for a refrigerator. Allow water heater to run continuously for 10 minutes. When venting navien npe tankless water heaters it is important that you do not start the vent run with a street elbow at the vent collar.

Read more problem solved. It struck me that the furnace has quite a large vent that should be able to handle the water heater exhaust but i would like your thoughts. The tankless heater cannot share vent piping with any other appliance and it cannot use a masonry chimney flue for venting. Special stainless steel pipe.

Tankless water heaters are vented in two ways. If water heater and a gas furnace share the same vent reduce the thermostat setting for the furnace so it does not run during the test. Tankless water heater venting features. Tankless water heaters don t always need two ventilation pipes even for direct vent units.

Direct vent and power vent. Run enough hot water for the water heater start heating. The vent pipe must be made of stainless steel designed for venting corrosive gases. 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.

However the key here is to install the vent pipe in the size required by the water heater. You do have way more options with electric than with gas or propane but the issue generally is the gpm. The navien npe tankless water heater is available in two models the s and the a read more. Gas tankless water heaters don t have to use indoor air for combustion.