"Putting a Damper on Cold Air"

 

The Hoyme Back Draft Hood Damper is designed specifically as an outlet only damper.

(The Inlet model is the 00H -All Weather Hood)

There are two types available from Hoyme Manufacturing.

Spring closed (an end switch may also be added to the spring closed model) 



And Gravity closed. 



Both types are avaiable in either regular or white painted metal. 

The BDH - Back Draft Hood commonly comes in sizes of 4" - 12" in diameter.

Contact the factory if other sizing is required.

Model Number Identification:

BDH - **00 - x00 (-G)

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Where ** is the size of the Damper and x  indicates an end switch (with an S or a 0).

For example, an 8" Back Draft Hood - Spring Closed would be

Example: BDH - 0800 - 000
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Example with an End switch:

BDH - 0800 - S00
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Example for Gravity closed (instead of spring closed):

BDH - 0800 - 000 - G
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Example for Gravity Closed with an End Switch:

BDH - 0800 - S00 - G
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