Barometric Flue Damper


A device installed in the flue between the boiler and the chimney to regulate the flow of air up the chimney.

Things you need to know

Different fuels require a different type of damper. For example, gas burners usually use double-acting dampers, and oil-fired burners usually use single-acting dampers.

Cost Considerations

They cost less than $100 to install, and they can lower your energy bill by as much as 5%.

Costs vary greatly by region (and even by zip code). To get free estimates from local contractors, please indicate yours.