VENT FREE OPERATION
FIREPLACE HOODS
A fireplace hood deflects heat away from the fireplace face and mantel, reducing the potential for heat related warping
or discoloration. The use of a fireplace hood is highly recommended. Fireplace Hoods are offered by many
leading fireplace manufacturers.
Mantel Clearance Without Hood:
Non-Combustible
or Heat Resistant
Material
Horizontal
Projection from
Face of Fireplace
Top of Firebox
opening
30"+ 28" 25" 20" 12"
Vertical Distances
to Underside of Mantel
.75"
2.5"
6"
8"
10"
Height Above Projection Out
Opening From Face
0 -12" 0"
12" - 20" 3/4"
20" - 25" 2 1/2"
25" - 28" 6"
28" - 30" 8"
30" plus 10"
FIREBOX
Figure 2
Mantel Clearance With Hood*:
Non-Combustible
or Heat Resistant
Material
Horizontal Projection
from Face of Fireplace
Top of Firebox
opening
Fireplace Hood with
minimum 4" horizontal
projection beyond
vertical surface above
hood
10" 12" 15" 17" 20"+
1.5"
2.5"
6"
8"
10"
Vertical Distances
to Underside of Mantel
Height Above Projection Out
Opening From Face
0" - 10" 0"
10" - 12" 1 1/2"
12" - 15" 2 1/2"
15" - 17" 6"
17" - 20" 8"
20" plus 10"
FIREBOX
Figure 3
4"
* Standard Fireplace Hood with a minimum 4 inch
horizontal projection beyond vertical surface
ABOVE hood as provided by most major
fireplace manufacturers
.
IF YOU CANNOT MEET THESE MINIMUM CLEARANCES YOU
MUST OPERATE HEATER WITH CHIMNEY FLUE DAMPER OPEN
(Operate as a VENTED Heater - See Page Three).
ALL APPLICATIONS (VENTED and VENT FREE OPERATION)
ASSEMBLY AND INSTALLATION
INSTALLING CHILLBUSTER BURNER UNIT INTO FIREPLACE
DIM A
CENTER OF FIRE BOX
FRONT
DIM A = 1"
Minimum
REAR
Figure 4
1.
Place grate/control assembly inside firebox or listed
ventless fireplace enclosure. Center grate left to right
with the front portion of the grate assembly no less than 1"
from the opening of the firebox. See figure 4.
2.
Connect CHILLBUSTER to gas supply line with supplied
semi rigid aluminum connector, or other flexible connector.
Use a pipe joint compound which is resistant to the action of
Propane gases on all pipe threaded joints except on the flared
connector fittings.
3.
Turn on the gas valve at the supply line in the fireplace.
Check connections for gas leaks by using a soapy solution.
Do not use open flame.
VOLCANIC ASH PLACEMENT
Sprinkle the VOLCANIC ASH around the firebox floor.
NEVER PLACE VOLCANIC ASH ON TOP OF ANY BURNER.
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