Gas Water Heater Venting Code

For safety water heaters must be vented using a listed and approved venting system that provides adequate size height and draft.

Gas water heater venting code.

All water heaters that burn natural gas or liquid propane lp gas require a venting system. When we are talking about gas furnace vent pipe code we need to talk about the different types of the vents first after all you want to keep your family safe from harm. These vents must be made of suitable materials and be kept clear of combustible materials. The california water heater code is part of a larger statewide california plumbing code and has several very specific restrictions.

Category iv direct venting intake and exhaust pipes pvc allowed 140 f limit furnace water heater boiler manual size of pipe and allowable lengths support terminations through wall or through roof 12 above grade or anticipated snow level in same pressure location concentric venting kit 25. The water heater must be vented in accordance with the section venting of equipment of the latest edition of the national fuel gas code. Need to hire a plumber. The vent system for a gas fired water heater must be installed according to local and state codes or in the absence of local or state codes the current edition of the national fuel gas code ansi z223 1 nfpa 54 link to 2012 edition.

The different types of venting. Ansi z223 1 nfpa 54 in the united states and or section 7 of. 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. 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.

These questions answers about codes standards for venting gas fired water heaters were posted originally at gas fired water heater venting be sure to review the codes and standards given there.