Monessen Hearth BUF400 Electric Heater User Manual


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16 61D1013
8'max.


1. Locate combustion air assembly at an exterior location which is not likely to be accidentally blocked in any
manner. Locate assembly a min. of 12" above the snow line to prevent blockage by snow accumulation.
2. Never mount the combustion air inlet assembly in a garage or storage area where combustible fumes such
as gasoline might be drawn into the fireplace.
3. Combustion air can be drawn from the crawl space under a house when an adequate supply of air is provided
by open ventilation.
4. 
5. Locate air supply inlet at least 3' away from any appliance vent terminal.
6. Avoid extremely long runs and numerous turns in the duct leading from the fireplace to the combustion air
assembly. These conditions increase the resistance to the free flow of air through the duct. SeeFigures14
through17for methods of installing the outside air for combustion assemblies.



Above
Snow
Level
Ground
Level
Basement
Wall
Inlet Grill in
Soffit
(Overhang)




Inside Wall
Outside
Wall
Duct Extended
to Miss Joist
To Outside Wall
Note:Fireplacemodelinillustrationsmaynotberepresentativeofyourappliance.
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