Gas Hot Water Heater Venting Requirements

This heater installation may be unsafe.

Gas hot water heater venting requirements.

Standard atmospheric water heaters are the most common type of residential gas water heaters. In addition to venting gas and propane water heaters need an air supply for combustion. Allow water heater to run continuously for 10 minutes. This difference in operation means that you can install a direct vent system almost anywhere but a power vented water heater must be placed in a room with adequate airflow.

The power vent water heater requires its own separate venting system. Sediment trap many locations require a sediment trap to be installed as close to the gas inlet as possible. It cannot be connected to an existing vent pipe or chim ney. To test for proper water heater venting.

It must be terminated to the outdoors. Atmospheric gas water. 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. 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.

For this reason common venting configurations are no longer allowed in some code jurisdictions where direct venting or power venting of water heaters is now mandatory. Run enough hot water for the water heater start heating. Failure to properly in stall the venting system can result in asphyxiation a fire or explo sion and can cause death serious bodily injury or property damage. Gas water heater vent configurations.

This heater installation may be unsafe.