Hello all, I would appreciate any advice I can get about purchasing a new wood-burning furnace. The background: I purchased this year a home, built 1973, in upstate New York. Two stories plus an unfinished attic and an unfinished basement with a concrete floor. About 2,150 square feet of living space to heat, split between the main level and the upstairs bedrooms. The heating system is an oil-burning furnace in the basement providing forced air to the floors above, controlled by a digital thermostat on the main level. There is also a Brock wood-burning furnace tied into the HVAC ducting. I'm not certain but I believe it was manufactured in 1982. The oil-burning and wood-burning furnaces are each serviced by separate flues in a masonry chimney. The Brock wood-burning furnace looks a bit decrepit. The electric motor controlling the metal flapper that regulates air inflow, just below the furnace door, is disconnected as evidenced by a bare wire dangling onto the basement floor. When I fired up the furnace, the side-mounted blower kicked on soon after the plenum became warm to the touch, but sounded sickly and produced exactly zero positive air pressure at every heating vent in the house. With a roaring fire, the oil furnace blower would kick on every 5-10 minutes for about 20-30 seconds, producing a brief flow of warm air throughout the house. But otherwise, the primary effect of the wood furnace seemed to be heating the basement from heat radiating off the plenum and chimney connector. There is no barometric damper installed on the Brock and even with the metal flapper open only about 1/4", there is a strong draft and 4-5 pieces of 16-18" wood are completely consumed within 2 hours. I am strongly considering buying a new wood furnace to replace the Brock. I have a few choices among furnaces that are sold by local dealers. These include: U.S. Stove 1602R Harman SF-2500-A Energy King 480EK PSG Max Caddy My budget is $3,000 - $4,000 for the furnace alone, not including the added expense of paying a HVAC company to modify the ducting in the basement to accommodate a differently-shaped setup. If any of these models are clearly superior/inferior for my purposes, I would be glad to know that. I can find the various tech specs online but I don't have the knowledge or experience to know which one is best or worst. Many thanks just for reading all of that!