electronic ignition hot gas boiler Agent with flue outlet

Automatic Flue Dampers - Energy Depot

Automatic Flue Dampers. When a gas-fired furnace or water heater is operated in a home or other building room air is drawn through the furnace or heater to help burn the gas. The warm exhaust gases are then vented up a pipe through the roof. When the unit shuts off residual heat continues to warm the air and draw it through the vent to ...

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