35644-2-0617
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PRODUCT SPECIFICATIONS
NATURAL GAS
Millivolt
Match Light
Gas inlet pressure
Max.
10.5”
10.5”
Min.
7.0”
7.0”
Model
Gas Type
Orifice
BTUH
Max. Rate
BXL18MTN
NAT
25
75,000
BXL24MTN
NAT
25
75,000
BXL30MTN
NAT
21
90,000
BXL36MTN
NAT
21
90,000
MINIMUM FIREPLACE DIMENSIONS
MASONRY BUILT FIREPLACES
Chimney Height Minimum of 6 Feet
Log
Set Size
Rear
Width
A
Depth
B
Front
Width
C
Height
D
Minimum
Vent in
Sq. Inches
18
22
14
26
18
49
24
26
16
30
18
71
30
30
18
36
18
71
36
34
18
42
18
71
For Double Burners without control valves (match-light) the fireplace
minimum front width above allows for centering the log set. When
adding valve kit to a Double Burner, add 4 inches to minimum
fireplace width shown above for size 18 log set; add 6 inches for
sizes 24 and 30.
MINIMUM FIREPLACE DIMENSIONS
MASONRY BUILT FIREPLACES
Chimney Height Minimum of 10 Feet
Log
Set Size
Rear
Width
A
Depth
B
Front
Width
C
Height
D
Minimum
Vent in
Sq. Inches
18
22
14
26
18
49
24
26
16
30
18
71
30
30
18
36
18
71
36
34
18
42
18
71
For Double Burners without control valves (match-light) the fireplace
minimum front width above allows for centering the log set. When
adding valve kit to a Double Burner, add 4 inches to minimum
fireplace width shown above for size 18 log set; add 6 inches for
sizes 24 and 30.
NOTICE:
Natural gas match throw sets may be used in some
areas. Check your local codes for this configuration.
HIGH ALTITUDE DE-RATE
In the U.S.A., input BTU shall be de-rated at 4% (1 orifice size)
per 1000 feet for altitudes above 2000 feet. In Canada, input BTU
shall be de-rated 10% (2 orifice sizes) at altitudes from 2000 feet
to 4500 feet.
FRON
T W
IDT
H
REAR
WIDT
H
DEPT
H
HEIGHT
A
B
C
D
