Faceplate
Flue
28"
6"
19-3/8"
14-3/4"
(to fuel door
opening)
1-3/8"
H2100 TOP
A
F
B
C
D
G
E
Masonry & Factory Built Fireplace Clearances
The minimum required clearances to combustible materials when installed into a masonry fireplace are:
Adjacent Side
Wall (to side)
Mantel
(to top)
Top Facing
(to top)
Side Facing
(to side)
Min. Hearth
Extension*
Min. Hearth
Elevation*
Min Hearth Side
Width**
A
B
C
D
E
F
G
Small I1200
15"
20"
14"
7-3/8"
16"
1-1/2"
8"
Medium I2400
11"
20"
12"
8"
18"
0.5"
8"
Large I3100
13"
19"
18"
6-1/2"
16"
1.5"
8"
Hearth Heater H2100
10"
25"
14"
8-1/2"
18"
1.5"
6"
*Note: If the hearth extension is flush with the floor (item F) it must extend 19.5 in. in front of the body face (item E) (I1100, I3100 & H2100 only).
**Note: Hearth extension width (G) is measured from edge of fuel door to side of hearth.
I1200
I2400
I3100
H2100
Small Insert
Medium Insert
Large Insert
Medium Insert
Maximum BTU*
55,000
75,000
80,000
70,000
Typical Sq. Ft. Heated
600-1000
1000-2000
1800-3000
800-1500
Optimum Efficiency
73.8%
77%
71%
72%
Maximum Log Size
18"
18"
21"
18"
Burn Time (Typical)*
up to 8 hrs
up to 8 hrs
up to 10 hrs
up to 8 hrs
Emissions (grams/hour)
3.0g
3.4g
4.2g
3.5g
Firebox Size
1.4 cu. ft.
2.3 cu. ft.
2.9 cu. ft.
1.6 cu. ft.
Flue Size
6"
6"
6"
6"
* Length of burn time and BTU range depend on type of wood, moisture content, climate conditions and installation.
X standard flue 8-1/4"
offset flue 12-3/4"
21-1/4"
22-3/4"
X
Faceplate
22-3/4
"
16-7/8
"
20-1/8"
I1200 TOP
Dimensions
I1200
I2400
I3100
H2100
Small Insert
Medium Insert
Large Insert
Medium Insert
Firebox Height
18-3/4"
20-7/8"
22-3/4"
22-1/2"
Height to top of Flue Collar
19-1/2"
21-1/4"
23-1/8"
20" (without legs)
28" (with legs)
Regular Faceplate (W x H)
38" x 26-1/8"
40" x 30"
44" x 32"
40-1/4" x 30"
Oversize Faceplate (W x H)
44" x 30-1/8"
48" x 33"
50" x 34-1/2"
48" x 33"
* including ashlip
23-1/4"
6"
25"
17-1/4"
34-1/4"
Faceplate
1-3/8"
5-5/8" *
7-5/8" **
11-1/8"
I2400 TOP
27-1/2"
6"
28"
16"
37-1/2"
Faceplate
3-7/8" *
5-1/2" **
9-7/8"
1-3/8"
I3100 TOP
28" (with legs)
20" (without legs)
Illustrates Hearth Heater with classic leg option.
Hearth Heater Minimum Fireplace Openings
* To fuel door opening
** Top surface depth
Specifications - Wood Inserts
22
Minimum Fireplace Opening
I1200
I2400
I3100
H2100
Width (front)
23"
25"
28"
8"
Height
19"
21-1/2"
25"
20" (without legs)
28" (with legs)
Depth (w/ standard flue adaptor)
(w/ offset flue adaptor)
13-3/4"
16-1/2"
17"
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17"
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