Factory Built Fireplaces - Hargrove CLBN 5-18 Installation And Operation Manual

Each gas log set requires a minimum for the front opening, height, and minimum depth. To determine the
largest set that will fit in a fireplace, the depth and width are the critical dimensions. The following illustration
reflects a view directly above the fireplace looking down. The minimum height for this model is 22 inches.
Table I below indicates the minimum the depth, width, and height for each set size:
f i r e - p a r t s . c o m
Minimum
Set Size Rear Width
18"
21"
Free opening area of chimney damper for venting combustion bi-products from decorative appliances for
installation in vented fireplaces. The minimum size of chimney flue is 8 inches in diameter.
Appliance Input Rate (Natural Gas): 56,000 Btu/hr

FACTORY BUILT FIREPLACES

Fireplace Height
(Feet)
10
15
20
25
30
35
40
FIREPLACE SIZES
26"
26"
Minimum Permanent
Free Opening in sq. in.
Natural
35.3
26.4
22.1
18.1
17.3
15.9
15.2
Front Width
Rear Width
TABLE I
Minimum Front
Opening Width
26"
26"
TABLE II
Fireplace Height
(Feet)
Propane
28.3 6
21.2 8
18.1 10
15.9 15
14.5 20
13.2 30
12.6
3
Depth
Minimum
Depth
22"
22"
(Propane): 46,000 Btu/hr
MASONRY FIREPLACES
Minimum Permanent
Free Opening in sq. in.
Natural
49.2
45.5
41.7
37.7
34.3
31.2
Minimum
Height
22"
22"
Propane
41.7
38.7
35.2
32.0
28.8
26.5