Gas Water Heater Venting Requirements

The power vent water heater requires its own separate venting system.

Gas water heater venting requirements.

Run enough hot water for the water heater start heating. 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. This may come from the atmospheric air in the house or it can come through a vent pipe that pulls air from the outdoors. These vents must be made of suitable materials and be kept clear of combustible materials.

Allow water heater to run continuously for 10 minutes. 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. Gas water heater vent pipe connector must continuously run upward towards the chimney entrance rising not less than 1 4 per linear foot to provide proper draft. Ventilation requirements for natural gas water heater it depends on where the water heater is.

It cannot be connected to an existing vent pipe or chim ney. In addition to venting gas and propane water heaters need an air supply for combustion. 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. Sediment trap many locations require a sediment trap to be installed as close to the gas inlet as possible.

Atmospheric venting refers to a system in which exhaust from the water heater naturally rises out of the appliance s combustion chamber then travels up through a standard chimney style flue. To test for proper water heater venting. How to know a gas water heater is venting safely. Proper venting gas and propane heaters emit carbon monoxide which must be vented outside.

It must be terminated to the outdoors. If in the home and drawing air from the home then the door should probably be sealed with weather stripping and combustion air brought in from the attic with a pipe just abobe floor level. Smith power vent gas water heaters are equipped with an electric blower fan that is installed on top of the water heater which requires an electrical outlet to be close to the water heater. This heater installation may be unsafe.