Double Wall Water Heater Vent Pipe Clearance

Direct vent water heaters.

Double wall water heater vent pipe clearance.

Cut away the wood that s too close. Each type of vent pipe has recommended clearances to combustible materials. Furnace water heater vent pipe clearance double wall. Most common gas vent if you are using a b vent typically a double walled air insulated vent for gas appliances typically you ll see a fire clearance stamped right into the metal of the chimney stating 1 inch minimum clearance to combustibles as you ll see in this photo.

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. 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. Amerivent is a complete gas venting system from 3 to 30 pipe diameters in 7 different pipe lengths to single to multi appliance hook ups. Single wall vents should have a minimum of 6 inches of clearance and double wall sometimes called a b vent should have 1 inch minimum clearance.

With a direct vent system air for combustion is drawn from a vent pipe that runs through an exterior wall or the roof. Apollopex corrugated the 3 4 in. One of the fire safety features of double wall type b gas vent is that its outer wall insulated by the airspace beneath it requires only 1 clearance to combustible material in the structure. Maximum horizontal section of the furnace water heater double wall vent pipe cannot be longer than 100 of the vertical vent pipe length.

Clearances for double walled b vent piping are given by the manufacturer and can be found also at type b vent ceiling floor wall clearances. The manufacture even stamps this into the vent. Metal double wall b vent requires 1 inch minimum clearance. Exhaust gases are vented outdoors through a separate vent duct or through a separate chamber of the same pipe this requires a double wall vent duct.

Metal single wall generally requires 6 inches of clearance. Transite generally requires 1 to 3 inches depending on various factors. Typically a double walled metal b vent chimney section is stamped as requiring 1 inch clearance to combustibles. If you are using a b vent which is a double wall vent pipe you supposed to use screws on the first connection only to the draft hood or to the single wall water heater vent pipe.

Trim back the wood shift the vent or. It will complete the information about the furnace and the water heater vent pipe clearance requirements. Each of these ameri vent gas pipes features rugged double wall construction with aluminum alloy 1100 3003 or 3105 inner pipe and corrosion resistant galvanized steel outer pipe.