Who needs a BK? I think it would be people who have large houses, or who have a challening situation in terms of insulation, siting, or design, or who have a lifestyle that requires infrequent trips to the stove. Or who think they're pretty.
I've been giving the whole `how much stove do you need' question a lot of thought, both before and after I bought this one, watching the numbers of house sizes and insulation and siting and stoves and temps, and asking the occasional impertinent question, and have a working hypothosis that houses that required less fuel before a wood stove went in might get away with a less ambitious stove than BK. Okay, that's not exactly profound, but coming from me, it counts as an epiphany. People who live in the same area I do with similar-sized houses that required a lot more fuel oil than I did are running with bigger stoves and more firewood. Stands to reason. I didn't understand how to factor that into my decision when I was stove shopping, but at least I was able to start forumating the right kinds of questions. And flippantly as it may have been asked, `who needs a BK' is one of those sort. The answer turns out to be: apparently not everyone.
It was 0F with a chilly breeze when I got up this morning. Temp was a comfortable 68 upstairs and down, and the stove had run all night on poplar with the air intake shut down and the damper in the stovepipe cranked over pretty good. I pulled off about a quart or so of ashes, raked the coals to the front, piled on the splits, and let her rip.
I have no other heat source; it wasn't my idea--boiler failed a month ago. In a way, I'm glad it did, because without that I wouldn't know just how much that stove could do. It's been like taking a new boat out for a shakedown cruise that turned, unplanned, into a trans-oceanic voyage. Okay, an exaggeration--but I never would have put it through these kinds of paces if my hand had not been forced. And I have been consistently blown away by how much my mid-sized stove can do. I think so very much just comes back to design, siting, insulation, and maintenance. Some of those factors we have control over, some we don't; we maximize what we can, and then buy accordingly.