Q&A What a barometric damper does

  • Active since 1995, Hearth.com is THE place on the internet for free information and advice about wood stoves, pellet stoves and other energy saving equipment.

    We strive to provide opinions, articles, discussions and history related to Hearth Products and in a more general sense, energy issues.

    We promote the EFFICIENT, RESPONSIBLE, CLEAN and SAFE use of all fuels, whether renewable or fossil.
  • Hope everyone has a wonderful and warm Thanksgiving!
  • Super Cedar firestarters 30% discount Use code Hearth2024 Click here
Status
Not open for further replies.

QandA

New Member
Staff member
Nov 27, 2012
0
Question:

Please explain to me what a barometric damper does and why it is needed.



Answer:

A TEE section is inserted into the stove pipe. In the side of the TEE, a weighted flap is installed. Whenever the chimney suction is greater than the stove or furnace needs, the flap rotates open and lets room air into the chimney, thereby spoiling the draft.

The benefit is that the stove or furnace will work more efficiently with a steady draft as opposed to constant changes in the chimney suction. For instance, a coal or wood stove may burn more steadily and for a longer period of time. An oil furnace will also be more efficient and less heat will be sucked up the flue when the unit is on AND off.
 
Status
Not open for further replies.