Specifications:
Standard Furnace
(Wood Grates)
Standard Furnace
(Coal Grates)
MODELS WF22
WOF22


CF22
COF22

FUEL Wood

Coal***
BTU Wood (approx)* 125,000
125,000
BTU Coal (approx) N/A
150-180,000
BTU/hr. -8hr firing* 125,000   150-180,000
Net Coal Capacity (lbs.)** N/A
150-180
Net Wood Capacity (lbs.)** 170
170
Grate Surface (sq. ft.) 3.2
3.2
Maximum firing rate: (lbs./hr.) 21
19
BTU Capacity Air Bonnet Oil 112,000 BTU/H 112,000 BTU/H
Maximum Firing Rate, gph #2 Oil 1.00 GPH 1.00 GPH
CABINET DIMENSIONS


Width 32"
32"
Length 40"
40"
Height 53 3/4"
53 3/4"
Firing Door Size (h x w) 16" x 17"
16" x 17"
Firebox Gauge 1/8, 11ga   1/8, 11 ga
Stack Diameter 8"
8" (9^)
Warm Air Outlet 30" x 38"
30" x 38"
Cold Air Inlet 24" x 24" 24" x 24"
BLOWER INFORMATION
Blower Size 12" x 13"   12" x 13"
CFM Capacity at Bonnet 1500   1900
Blower Motor HP 1/3   1/3
Filter Sizes (2 required) 20" x 25" 20" x 25"
Shipping Weight (lbs.) 1000
1000
*Ratings are based on wood that is thoroughly air dry to 15-20% moisture and weighs at least 28.75 lbs/cu.ft or good quality coal.
**Net wood or coal capacity is 80% of gross or the amount of new fuel added on an existing fire bed.
***The basic difference between the COF and WOF furnaces are the grates. Obviously, wood can be burned on the coal grate with the same rated output as the WOF22.
^Units shipped into areas where bituminous coal may be burned may have larger diameter stack.




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Logwood is a registered trademark and is manufactured by:

Marathon Heater Company, Inc.
13 Town Barn Rd. • PO Box 58
Richford, NY 13835

Phone: (607) 657-8113 | Fax: (607) 657-8114

E-mail us at: logwood@marathonheaterco.com