According to a nice article in the Maine Sunday Telegram, the Black Bear boiler company is ramping up for production. Apparently, it's a very clean burning, efficient outdoor/indoor boiler that retails for about $7,500. Here's how the paper described the technology: "The Black Bear Boiler uses a blower to ignite wood gasses. They burn at very high temperatures, passing over a heat exchanger to warm water and feed baseboards in the house. the firebox is surrounded by a massive ceramic refractory that also slowly absorbs heat. Turning off the blower removes oxygen from the unit, and the fire instantly goes out. but the refractory remains extremely hot for up to 48 hours, and the fire will reignite when the blower flips on again." Instead of having a 20- or 30-gallon water jacket, like a conventional boiler, this thing apparently uses a heat exchanger with much less water capacity. It looks to me like a modified Garn, but much cheaper and easier to use, if the publicity is to be believed. I think I'll head up to East Millinocket early next year and check it out for myself. Get 'em to toss a load of wood in the firebox and see what comes out the stack.