NOTE: All product specifications are subject to change
without notice. Before installing refer to the relevant
product manual for full and up to date information.
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B
SPECIFICATIONS
R90 WarmHearth Plus
Excalibur EX90
Maximum BTU*
70,000
70,000
Typical Sq. Ft. Heated
1,000-2,200
1,000-2,200
Efficiency (EPA)
74%
74%
Maximum Log Size
20"
20"
Burn Time (Typical)*
up to 8 hrs
up to 8 hrs
Emissions (grams/hr)
3.72g
3.72g
Firebox Size
2.5 cu. ft.
2.5 cu. ft.
Flue Size
8"
8"
* Length of burn time and BTU range depend on type of wood, moisture content,
climate conditions and installation
38"
43-5/8"
14-5/8"
13-3/8"
28"
9-5/8"
25"
15"
4-3/4"
50-1/2"
42-5/8"
3-5/8"
1-3/8"
7-7/8"
29-1/8"
31"
37-3/8"
UNIT DIMENSIONS
CLEARANCE TO COMBUSTIBLES
Minimum Clearance to Combustibles
R90
EX90
USA
Canada
USA
Canada
A
Side Wall From Louver Opening (EX90: to surround edge)
18"
24"
18"
24"
B
Mantel Height (min.) From Louver Opening
18"
18"
18"
18"
C
Mantel Depth (max.)
10"
10"
10"
10"
Non-Combustible Hearth Requirement
D
Hearth Width
40"
40"
40"
40"
E
Hearth Depth
18"
18"
18"
18"
FRAMING
E
D
C
B
A
F
F
J
G
G
H
I
Framing
USA
Canada
A
96-1/4"
115-3/8"
B
48-1/8"
57-5/8"
C
68"
81-1/2"
D
24-1/2"
31-1/4"
E
3"
9-3/4"
F
22"
30"
G
13-3/4"
13-3/4"
H
28"
28"
I
14-5/8"
14-5/8"
J
0"
11"
K
44"
44"
L
50-3/4"
50-3/4
K
L
Specifications - Wood Fireplaces
38"
43-5/8"
14-5/8"
13-3/8"
28"
9-5/8"
25"
15"
4-3/4"
50-1/2"
42-5/8"
29-1/8"
43"
38-3/4"
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US only:
Chase must be ventilated
with one 30 square inch vent grill. The
vent grill must draw air from inside the
home and not from outside.
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