Hello, I have a vintage Iron Fireman coal burning 'unit heater' that I've restored to working condition, and currently burn wood pellets in to heat my garage. It is, unfortunately, a bit too large and powerfull for the space. Does anyone have any idea what this might be worth? Are there any others out there? I have extensively searched the Internet and what little information I have found would suggest it was built around 1939, and was used to heat stores, warehouses, etc. Thanks for any information.