Water Heater Vent Clearance

1 inch or 6 inches.

Water heater vent clearance.

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. Note some modern high efficiency water heater may have pvc vents. Single wall vent pipes cannot pass through a ceiling floor firewall or wall. A clearance area of 12 inches is required on all sides of a hot water heater.

Locate the vent such that there is no less than 12 305mm between the nearest side of a dryer exhaust vent hood and an adjoining wall or building inside corner. 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. Water heater vent clearance to wood or combustionable materials. For gas fired water heater vents.

The building code states that. A vent pipe is an important part of the gas water heater maintenance don t forget your schedule. Complete the vent pipe installation to the water heater s vent connector fittings. Water heater vents generally are of two types.

Water heaters with power venting come with an electric blower fan often very quiet installed on top of the water heater and can have either vertical or horizontal vent ducts. Cut a hole through the roof and interior ceiling to accommodate the vent pipes. Single wall vents get very hot requiring a 6 in. 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.

Locate the vent such that there is no less than 12 305mm between the bottom of the exhaust vent hood and the ground surface. Maintain the recommended air space clearance to combustible materials and building insulation. Basement finishing projects are notorious for this code violation. 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.

A certain amount of airflow is also required for proper combustion and ventilation. 6 minimum clearance from single wall vent pipe or flue vent connector to any combustible material. Furnace water heater vent pipe clearance single wall. Since the vent does not rely on the buoyancy of hot air it can be run horizontally to the outside of the house.