Gas Hot Water Heater Venting Requirements

To test for proper water heater venting.

Gas hot water heater venting requirements.

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

These vents must be made of suitable materials and be kept clear of combustible materials. It must be terminated to the outdoors. Gas water heater vent configurations. This heater installation may be unsafe.

Atmospheric gas water. Allow water heater to run continuously for 10 minutes. Standard atmospheric water heaters are the most common type of residential gas water heaters. This heater installation may be unsafe.

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.