![FMI Masonry MM33 Instructions Manual Download Page 12](http://html1.mh-extra.com/html/fmi/masonry-mm33/masonry-mm33_instructions-manual_2312935012.webp)
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CAUTION: Combustion air inlet ducts shall
not terminate in attic space.
The maximum height for the air vent can not
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termination.
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VENTING INSTALLATION
Figure 13 - Outside Air Kit Venting
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OPTIONAL OUTSIDE AIR KIT (MODEL MM4AK)
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Figure 12 - Outside Air Kit Installation
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