Boiler Specifications

Specifications: ADD-ON Boiler
(Wood Grates)
ADD-ON Boiler
(Coal Grates)

UNIT SIZE AOB24W
AO36W
AOB24C AOB36C

HEAT EXCHANGER

BTU/H Wood 70,000 100,000
70,000 100,000

BTU/H Coal N/A N/A
100,000 175,000

Grate Surface (sq. ft.) 2.95 4.43
2.95 4.43

Net Coal Capacity (lbs.) N/A N/A
150 220

Net Wood Capacity (lbs.) 95 145
95 145

Wood Length 24" 36"
24" 36"

WATER INFORMATION

Capacity (Gal.) 25 35
25 35

Supply Tapping (1) 1 1/2" 1 1/2"
1 1/2" 1 1/2"

Return Tapping (1) 1 1/2" 1 1/2"
1 1/2" 1 1/2"

CABINET DIMENSIONS

Width 22 1/4" 22 1/4"
22 1/4" 22 1/4"

Length 30 1/2" 42 1/2"
30 1/2" 42 1/2"

Height 45 3/4" 45 3/4"
45 3/4" 45 3/4"

Firing Door Size (h x w) 11" x 15" 11" x 15"
11" x 15" 11" x 15"

Stack Diameter 7" 7"
7" 7"

Stack center from floor 35" 35"
35" 35"

Shipping Weight (lbs.) 725 930
725 930