Venting A Water Heater Through The Roof

Traditional gas tank water heater require venting through the roof.

Venting a water heater through the roof.

Hot water is an amenity that most people just can t live without. Many people can t live without a water heater. Atmospheric venting refers to a system in which exhaust from the water heater naturally rises out of the appliance s combustion chamber then travels up through a standard chimney style flue. When installing a gas water heater building codes requires that they be ventilated out of the room through the attic and out through the roof.

One on the ceiling above the water heater. Proper venting prevents backdrafting. Illustrations of proper gas fired water heater venting using type b double wall vent pipe through a roof above or through a chimney below include details for the flue vent connector such as the requirement of a minimum vent connector upwards slope of 1 4 per foot of horizontal run. In order to do this two critical measurements must be taken.

Tankless water heaters can vent through the roof or a side wall creating more flexibility and options for placement. After applying pipe thread tape to the mnpt nipples on your water heater thread the fnpt end of the water heater connector onto the tank and tighten with. The most common problem associated with water heater venting is a condition called backdrafting in which exhaust gases from the water heater fail to exit the home via the vent and instead end up in the house backdrafting can have many causes but it is most commonly due to poor vent design or installation and or an imbalance of air volume in the home. Apollopex corrugated stainless steel water heater connector was designed for the fast and simple installation of hot and cold water lines to water heaters using pex connections.

The gas heater vents out the side of the house so the water heater is the only item venting through the chimney. The chimney above the roof is in very poor condition. Whenever we are installing a gas water heater building codes require that there should be a ventilator out of the room through the attic and out through the roof. Apollopex corrugated the 3 4 in.