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NOTE: All product specications 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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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
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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
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Specications - 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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