Gas Water Heater Venting

Atmospheric gas water heaters vent their exhaust through a vertical or upward sloping metal duct vent to exit the home.

Gas water heater venting.

The process of burning of the gas is called combustion and it creates heat exhaust gases including highly poisonous carbon monoxide and moisture. The main problem with atmospheric vent systems is that they are susceptible to back drafts more on that later. Otherwise such vents may be unsafe venting combustion products including dangerous carbon monoxide into the building. To test for proper water heater venting.

Atmospheric is the most common gas water heater venting option. On standard gas water heaters the fumes are commonly exhausted through a back draft insert and flue. All water heaters that burn natural gas or liquid propane lp gas require a venting system. The back draft insert prevents air from entering the top of the water heater and improves heat distribution in the tank.

Natural draft gas water heater vent pipe system is still dominating and as long as the property has favorable structural conditions and a chimney dedicated for use with gas burning appliances you can use this type of venting. The flue is the venting that the fumes travel through to be safely exhausted outside of the home. Run enough hot water for the water heater start heating. Summary of good venting practices for gas fired water heaters water heaters must be vented using a listed and approved venting system that provides adequate size height and draft.

If water heater and a gas furnace share the same vent reduce the thermostat setting for the furnace so it does not run during the test. Allow water heater to run continuously for 10 minutes.