Found a 1980s Concorde Catalytic stove in the garage of the estate I'm sorting out. It's brand new, still on the pallet. Does anyone know what it's value might be? AND, I've read several threads on this stove and understand some models were sub-par. Can anyone tell me how I can tell if I've got a lemon, or a decent, SAFE wood burning stove? The Installation booklet indicates it's one of the following models:; 14, 24, 34, or 44. Thank you!