Water Heater Vent Pipe Clearance To Combustibles

Home plumbing water heater water heater vent clearance to wood or combustionable materials.

Water heater vent pipe clearance to combustibles.

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. For gas fired water heater vents. Round type b gas vent 18 3. These questions answers about fire clearance distances for gas fired heating appliance flues.

Typical listed and labeled double wall vent pipe clearance to combustible materials is one inch but you should always check before installation. Single wall vents get very hot requiring a 6 in. 1 clearance to combustibles in single and multi family dwellings. Distance from the flue vent connector of flue pipe to combustibles chimney clearances.

Some have 0 some have 1 2 and others have 1 clearance around combustibles also some say do not insulate as the temperature will damage the pipe and some say to insulate if it passes through a unheated space others say only leave the first 3ft exposed and must be cpvc. 9 is a typical clearance between a gas fired boiler or furnace flue connector and combustibles. 6 minimum clearance from single wall vent pipe or flue vent connector to any combustible material. In an attempt to maximize finished floor space when boxing off the water heater from the rest of the room people often don t leave enough clearance between the new wall framing and the vent pipes.

Fire clearance for single wall metal flue vent connectors. Basement finishing projects are notorious for this code violation. Indoor fire clearances for flues vent connectors and vents were posted originaly at fire clearances single wall metal flues vents please be sure to check the distances given there. Inadequate fire clearance from combustibles may not be obvious until you open a door such as our client is pointing out in this photograph.

Single wall vent pipes cannot pass through a ceiling floor firewall or wall. Aluminum 020 inner wall galvanized 021 outer wall. 1 inch or 6 inches water heater vents generally are of two types. 3 16 diameters feature twist lock fittings screws required for 14 and larger diameters.

For heaters vented into a metal or masonry chimney clearance distances around the chimney and chimney top including chimney top to roof. Furnace water heater vent pipe clearance double wall. It will complete the information about the furnace and the water heater vent pipe clearance requirements. Maximum horizontal section of the furnace water heater double wall vent pipe cannot be longer than 100 of the vertical vent pipe length.

Note some modern high efficiency water heater may have pvc vents.