Furnace And Water Heater Venting Diagram

The old vent pipe is too large because it served both the furnace and water heater.

Furnace and water heater venting diagram.

Proper furnace water heater venting is an extremely important issue which depends on the performance of the house chimney chimney flue or other exhaust assemblies. The conditions explained in this post also apply to the wood burning appliances. The lower btuh of a gas water heater compared with a heating furnace or boiler will very often be unable to heat the chimney interior sufficiently to develop a draft. Consequences of improperly assembled vent pipes problematic chimney flue deteriorating chimney walls can be sometimes fatal fire and carbon.

In comparing the venting of exhaust gases from a high efficiency furnace boiler or water heater with the venting of exhaust gases from a conventional heating system it will be immediately obvious that the high efficiency equipment exhaust is produced at a low enough temperature that it is vented through comparably small diameter plastic piping. The result is a back draft of combustion products out of the water heater s draft hood and into the building. The venting can run either vertically or horizontally with a longer line to help with space and sizing issues within your. This structure generally uses the furnace vent pipe through roofbecause the b venting pipe is designed in vertical manner.

Any action you take on the information on the bradford white water heaters youtube or vimeo channels are strictly at your own risk. The photo below shows typical combined furnace water heater venting. The blower pushes the exhaust and excess heat through the exhaust venting. Also known as the type b this vent is operating on the natural air convection.

With a replacement high efficiency furnace the existing vent pipe does not work for water heater only because the vent is too large. Smith power vent gas water heaters are equipped with an electric blower fan that is installed on top of the water heater which requires an electrical outlet to be close to the water heater. Gas water heater vent codes standards. Bradford white water heaters may at any time and at its sole discretion change or replace the information available on the bradford white water heaters youtube channel and in the videos contained therein.