Water Heater Vent Pipe Clearance To Combustibles

Distance from the flue vent connector of flue pipe to combustibles chimney clearances.

Water heater vent pipe clearance to combustibles.

Fire clearance for single wall metal flue vent connectors. Fire clearances required range from 6 to 36 depending on the equipment. Note some modern high efficiency water heater may have pvc vents. Single wall vents get very hot requiring a 6 in.

1 clearance to combustibles in single and multi family dwellings. For gas fired water heater vents. These questions answers about fire clearance distances for gas fired heating appliance flues. Home plumbing water heater water heater vent clearance to wood or combustionable materials.

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. Round type b gas vent 18 3. 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. 1 inch or 6 inches water heater vents generally are of two types.

9 is a typical clearance between a gas fired boiler or furnace flue connector and combustibles. 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. Single wall vent pipes cannot pass through a ceiling floor firewall or wall. Typical listed and labeled double wall vent pipe clearance to combustible materials is one inch but you should always check before installation.

3 16 diameters feature twist lock fittings screws required for 14 and larger diameters. Basement finishing projects are notorious for this code violation. Aluminum 020 inner wall galvanized 021 outer wall. Maximum horizontal section of the furnace water heater double wall vent pipe cannot be longer than 100 of the vertical vent pipe length.

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. Flue vent connector clearance distances. Furnace water heater vent pipe clearance double wall. 6 minimum clearance from single wall vent pipe or flue vent connector to any combustible material.

Metal single wall and double wall.