Water Heater Flue Pipe Clearance

Even if you keep the clearances at the entrance and exit from that space whatever section is inside must be double wall type pipe.

Water heater flue pipe clearance.

According to the irc you must have 18 inch clearance from the top of the water heater to your pex connection. Single wall vents get very hot requiring a 6 in. But i am thinking since this is a high efficiency with an induced fan that it not necessary. It is a high efficient gas water heater.

Basement finishing projects are notorious for this code violation. A vent pipe is an important part of the gas water heater maintenance don t forget your schedule. An exception is made for non combustible walls such as solid masonry or concrete. Highlights of gas heater vent clearance distances 36 above forced air intakes the exhaust vent terminal shall be located at least 3 feet above any forced air inlet located within 10 feet.

Metal flue fire clearance requirements single wall metal pipe flues gas fired equipment. 6 minimum clearance from single wall vent pipe or flue vent connector to any combustible material. Gas fired heating equipment. Fire clearances required range from 6 to 36 depending on the equipment.

Single wall vent pipes cannot pass through a ceiling floor firewall or wall. Should the vent be a single wall vent then either cutting back the wood or switching the single wall to a double wall may make. Water heater vent clearance to wood or combustionable materials. 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.

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. This is a new construction home. 9 is a typical clearance between a gas fired boiler or furnace flue connector and combustibles. The minimum distance between the single wall vent pipe and combustible materials is 6 the single wall vent pipe cannot be concealed inside the wall or floor.

Furnace water heater vent pipe clearance single wall. 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.