Gas Water Heater Vent Pipe Clearance

Water heater vent pipe clearances and restrictions.

Gas water heater vent pipe clearance.

Table illustrations of the required space between a direct or side wall vent for a gas fired heating appliance and building windows doors corners gas meter air intakes sidewalks balconies. 6 minimum clearance from single wall vent pipe or flue vent connector to any combustible material. Installing a tank water heater might seem easy but homeowners who refinish their basements often create a number of code violations with respect to the water heater. Type b vents ceiling floor wall clearances b vent clearances to combustibles clearance distances for a b vent to combustible materials in floors walls ceilings attics roofs.

Gas service line trench features are also described. We discuss fire safety fire clearances and other gas appliance venting details for b vent chimneys. Such installation could create pyrophoric conditions and a fire hazard. When a gas fire water heater is installed in a closet it should have a minimal 1 inch clearance between it and any combustible material such as wall framing or wall finish.

Single wall vent pipes cannot pass through a ceiling floor firewall or wall. For gas fired water heater vents. Typical listed and labeled double wall vent pipe clearance to combustible materials is one inch but you should always check before installation. The process of burning of the gas is called combustion and it creates heat exhaust gases including highly poisonous carbon monoxide and moisture the water heater s ventilation system removes these byproducts from the home making it a critical safety feature.

Maximum horizontal section of the furnace water heater double wall vent pipe cannot be longer than 100 of the vertical vent pipe length. Single wall gas water heater vent pipe connector cannot be installed closer than 6 from any combustible materials such as floor wall framing paper etc. Code expert glenn mathewson describes 10 common water heater code issues including confusion about drip pans and drains unsupported expansion tanks and plastic vents lack of combustion air and more. Furnace water heater vent pipe clearance double wall.

This article provides a detailed table of example clearance distance specifications for natural gas meter installations giving the distances to various building features such as windows doors electrical components vents air conditioners and outside hose bibs. Gas meter gas pipe clearance distances.