Gas Water Heater Vent Pipe Clearance

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.

Gas water heater vent pipe clearance.

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. All water heaters that burn natural gas or liquid propane lp gas require a venting system. 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. Typical listed and labeled double wall vent pipe clearance to combustible materials is one inch but you should always check before installation.

For gas fired water heater vents. 6 minimum clearance from single wall vent pipe or flue vent connector to any combustible material. Water heater vent pipe clearances and restrictions. This article series describes b vent metal chimneys used for gas fired appliances.

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. Single wall vent pipes cannot pass through a ceiling floor firewall or wall. Furnace water heater vent pipe clearance double wall. 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.

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. Maximum horizontal section of the furnace water heater double wall vent pipe cannot be longer than 100 of the vertical vent pipe length. Such installation could create pyrophoric conditions and a fire hazard. 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 meter gas pipe clearance distances. Gas service line trench features are also described.