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.
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
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
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"
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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