13
Vent-Free Gas Log Heater User Manual
MANTEL CLEARANCES
In addition to meeting noncombustible material clearances, you must also meet required clearances between
the fireplace opening and mantel shelf. A fireplace hood is required if the below clearances are not met.
Determining Mantel Clearances:
If you meet the minimum clearance requirements between the mantel shelf and the top of the fireplace
opening, you do not require a fireplace hood (see Fig. 5).
Determining Minimum Mantel Clearance When Using a Hood:
If the minimum clearances in Fig. 6 are not met, you must use a hood. When using a hood there are still
certain minimum mantel clearances required, as shown in Fig. 6.
NOTICE:
When operating the heater, the surface temperature of adjacent walls and mantels become hot.
Walls and mantels above the firebox may become too hot to touch. If installed properly, these temperatures
meet the requirement of the national product standard. Follow all minimum clearances shown in this manual.
NOTICE:
If your installation does not meet the minimum clearances, you must only operate the heater with
the flue damper open, or you must raise the mantel to an adequate height.
Installation (cont.)
Noncombustible Material Installation Requirements
Noncombustible
Material Distance
Requirements for Safe Installation
8" or more
Noncombustible material is okay.
Less than 8"
Noncombustible material must be extended to at least 8". See between 8" and
12" on the previous page. If you cannot extend the material, the heater must be
operated with the flue damper open
Maximum
10"
Combustible
Mantel
Minimum 20"
Maximum
10"
Combustible
Mantel
Minimum
18"
Minimum
10"
Maximum
2
-1/2
"
4" Sheet
Metal Hood
Fig. 5—Closed Flue Mantel
Clearances without Hood
Fig. 6—Closed Flue Mantel
Clearances with Hood
