Single wall vents get very hot requiring a 6 in.
Water heater vent clearance.
Complete the vent pipe installation to the water heater s vent connector fittings.
A certain amount of airflow is also required for proper combustion and ventilation.
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.
Furnace water heater vent pipe clearance single wall.
A clearance area of 12 inches is required on all sides of a hot water heater.
Maintain the recommended air space clearance to combustible materials and building insulation.
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.
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.
Single wall vent pipes cannot pass through a ceiling floor firewall or wall.
Cut a hole through the roof and interior ceiling to accommodate the vent pipes.
Use cleaner primer and pvc cement where the vent pipes join the water heater.
Water heater vent clearance to wood or combustionable materials.
A vent pipe is an important part of the gas water heater maintenance don t forget your schedule.
6 minimum clearance from single wall vent pipe or flue vent connector to any combustible material.
Water heater vents generally are of two types.
Since the vent does not rely on the buoyancy of hot air it can be run horizontally to the outside of the house.
For gas fired water heater vents.
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.
Basement finishing projects are notorious for this code violation.
Metal single wall and double 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.
The building code states that.
Even if you keep the clearances at the entrance and exit from that space whatever section is inside must be double wall type pipe.
Note some modern high efficiency water heater may have pvc vents.