The 1802g add on furnace is designed to use in conjunction with your existing HVAC ductwork and work seamlessly with your existing furnace. With twin 800 CFM blowers and up to 218,000btu’s it is designed to heat a home up to 3600 sq. ft. This unit is made with a firebrick lined plate steel firebox surrounded by green powder coated steel giving the unit an eye appealing look. Connection to your existing ductwork is easy with the 18” x 18” heat outlet. Available accessories include the Universal filter box Kit and Hot Water Coil kit.
Installation materials are NOT included (i.e. floor protector,
chimney connector, thimble, radiation shield, flue)
Twin 800 CFM blowers provide redundancy and large amounts of air flow
8" Flue Collar
18" x 18" Heat Outlet
Secondary Heat Exchanger with Firebrick Baffle for Extra Long Life
Manual Damper system allows Fine tuning for Maximum efficiency
Firebrick lined Firebox to boost efficiency and heating capacity
Separate Ash door with removable dump pan
Extra-Heavy Duty Cast Iron doors, grates and liners
Removable / Replaceable shaker grates (handle included)
Firebox Dimensions: Width: 18 1/2", Depth: 36", Height: 24 1/2"
Not approved for use in Mobile or Modular Homes
Not available for sale in WA and CA
| Heating Capacity |
2,400 - 3,600 |
| BTU Range |
81,993 - 218,648 |
| Fuel |
Wood/Coal |
| Coal/Pellets cap. |
35"/180 lbs |
| Log Length |
35" |
| Weight |
770 lbs |
| Width |
26.5" |
| Depth/w blower |
55" |
| Depth w/o blower |
44.5" |
| Height |
52.75" |
**Due to the size and weight of ALL United States Stove Company products, we do not offer free shipping on our stoves. You can pick up at any of our locations or you can call Michelle at 1-800-638-9011 for a shipping quote. You may also e-mail her at
info@smithfarmstores.com or chat online with her from 8:00-5:00 EST. Thank you in advance and sorry for any inconvenience that this may cause.**