Gas Hot Water Heater Venting Requirements

These vents must be made of suitable materials and be kept clear of combustible materials.

Gas hot water heater venting requirements.

To test for proper water heater venting. Proper venting gas and propane heaters emit carbon monoxide which must be vented outside. 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. Standard atmospheric water heaters are the most common type of residential gas water heaters.

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. In addition to venting gas and propane water heaters need an air supply for combustion. 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.

It cannot be connected to an existing vent pipe or chim ney. This heater installation may be unsafe. This heater installation may be unsafe. Atmospheric gas water.

Sediment trap many locations require a sediment trap to be installed as close to the gas inlet as possible. It must be terminated to the outdoors. 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. 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.

Run enough hot water for the water heater start heating.