Specifications Model H2 Standard H3 Economy H4 Standard H5 Economy H8 Catalytic H25 High Capacity Max. BTU/ Hour Output 120,000 120,000 180,000 180,000 150,000 250,000 Fire Chamber Capacity 16 cu. ft. 16 cu. ft. 22.6 cu. ft. 22.6 cu. ft. 15.1 cu. ft. 26 cu. ft. Maximum Log Length 30" 30" 30" 30" 30" 30" Weight 650 lbs. 650 lbs. 850 lbs. 850 lbs. 750 lbs. 1000 lbs Fuel Wood Wood Wood Wood Wood Wood Water Capacity 100 Gallons 100 Gallons 130 Gallons 130 Gallons 85 Gallons 160 Gallons Flue Size 6" 6" 8" 8" 6" 8 x 10" Insulated Electrical Equipment 115 VAC, 60 Hz 115 VAC, 60 Hz 115 VAC, 60 Hz 115 VAC, 60 Hz 115 VAC, 60 Hz 115 VAC, 60 Hz Dimensions Furnace with Cover 30" x 52.5" x 59.5" 30" x 52.5" x 59.5" 40" x 52.5" x 59.5" 40" x 52.5" x 59.5" 30" x 52.5" x 59.5" 40" x 60.25 x 59.5" Firebox 24"x32" x44" 24"x32"x4 4" 34"x32"x44 " 34"x32"x4 4" 24"x32"x4 4" 34" x 42" x 52" Construction Firebox, Water Tank, Base, Ash Bin, and Doors 14 &16 Gauge 304 Stainles s Steel 14 & 16 Gauge 304 Stainless Steel 14 & 16 Gauge 304 Stainless Steel 14 & 16 Gauge 304 Stainless Steel 14 & 16 Gauge 304 Stainless Steel 14 & 16 Gauge 304 Stainless Steel Smoke Stack and Outside Cover 26 Gauge 304 Stainles s Steel 26 Gauge 304 Stainless Steel 26 Gauge 304 Stainless Steel 26 Gauge 304 Stainless Steel 26 Gauge 304 Stainless  Steel 24 Gauge 304 Stainless Steel

Heating Coil for Central Unit  Fan Unit (for homes without duct system)  6" x 22" x 28"...........89,000 BTU  Capacity 16" x 30" x 25"  60,000 BTU  Capacity....Blower and Heating Coils Higher and Lower Capacity Coils are  Available Electrical Outlet Mounted  Thermostat.....Requires 115V Grounded  Outlet