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08/04 31072 Rev G 9
MHC36 AND MHR36 INSTALLATION INSTRUCTIONS
WARNING!
Do not draw outside air from garage spaces. Exhaust products of gasoline engines are haz-
ardous.
Do not install outside air ducts such that the air may be drawn from attic spaces, basements or
above the roofing where other heating appliances or fans and chimneys exhaust or utilize air.
These precautions will reduce the possibility of fireplace smoking or air flow reversal.
WARNING!
To prevent contact with sagging or loose insulation, the fireplace must not be installed against
vapor barriers or exposed insulation. Localized overheating could occur and a fire could re-
Figures 3 and 4 show two typical installations assuming an outside air kit is being used. Therefore, an allowance must
be made for 90-deg bends. Less space is required when ducting goes directly outside without forming elbows.
Figure 3
Installation Along a Wall
Figure 4
Corner Installation
These are rough framing
dimensions only.