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Where is a HOM damper Installed?

Where is a HOM-Combustion Air Damper Installed?

The HOM - Combustion Air Damper is installed on the terminating end of your combustion air duct which according to the B149 Gas Code should be located within 1 ft above and within 2 ft. horizontally of the largest input appliance.

The following as taken from the B149 Gas Code.

8.3.1
(d) (The duct shall) terminate within 1 ft (300 mm) above, and within 2 ft (600 mm) horizontally from, the burner level of the appliance having the largest input.

Reproduced with permission.


Click here to see more of the Building code.

Last Updated (Monday, 10 May 2010 12:17)