Gas Hot Water Heater Exhaust Requirements

Chimney chimney flue must terminate min.

Gas hot water heater exhaust requirements.

Turn clothes dryer on. 2 higher than building withing 10. The natural gas fueled water heater shown at page top is improperly vented lacking the recommended minimum 12 of vertical rise before the elbow and vented directly into a large masonry flue where it cannot develop adequate draft. All water heaters that burn natural gas or liquid propane lp gas require a venting system.

There are grave liabilities and risks involved in violating basic mechanical and safety standards. Turn all kitchen and bathroom exhaust vents on. Below are some requirements for the furnace water heater single wall vent pipe chimney warm climate. Allow water heater to run continuously for 10 minutes.

The process of burning of the gas is called combustion and it creates heat exhaust gases including highly poisonous carbon monoxide and moisture. 2 above the roof chimney chimney flue must terminate min. With this test even with everything running that pulls air from the house a properly vented gas water heater will not backdraft.