I want to put a wood stove in 650 sq. ft. well insulated space. Any recommendations? I'll be putting a 15 ft. chimney (12 ft. class A, 3 ft. stove pipe) on it, and will use it hard in Jan & Feb with off and on use in Nov, Dec, Mar. (will burn K-1 during warmer weather). I would hope for at least 4 hour reload time (gotta sleep some time...) and easy to cold start without a ton of smoke in the house. I like the size and shape of Jotul F602CB but there must be more modern designs that outperform it. Also, what are pros/cons of cast iron versus welded steel? Is one inherently more smoky? Can you run them equally hot?