Monessen Hearth Unvented Vent-Free Fireboxes BUF500 - Manual (Page 9)

61D1013 9
12"
10"
8"
6"
2 1 /
2
"
12"
16"
19"
21"
23"
CLEARANCES
AND
HEIGHT REQUIREMENTS
4. Mantel clearances: The canopy supplied with the unit must
be installed. If a combustible mantel is installed, it must meet
the clearance requirements as shown in Figure 5.
5. Floor clearance: This inner chamber firebox floor must be installed at least 5" above any combustible flooring mate-
rial, such as carpeting or asphalt tile, which is closer than 14" to the base of the firebox. See Figure 6.
Or
The inner chamber firebox floor may be installed nearer to the floor if a minimum of 14" of noncombustible material
such as slate or marble is installed between the base of the firebox and the combustible flooring. See Figure 7.
Figure 5 - Mantel Clearances
Figure 6 - Minimum Clearance above
Combustible Flooring
Figure 7 - Minimum Clearance above Combustible
Flooring with Non-Combustible Material Installed at
Base of Fireplace
Non-Combustible
Material
5" Minimum
14" Minimum
Can Be
Less than 5" Non-Combustible
Material