My wife likes the look of a Jotul f500 or f600. I've found a few used on facebook marketplace in the neighborhood of $1000. I would like to get an epa stove, but it seems to me like catalytic converters on a stove would just be an expensive repair down the road. Were there non-cat models of these stoves? Were they all 6 inch flues? Anything else I should be looking for or asking sellers about? We like the look of Vermont Castings as well but it doesn't seem like they get as good of reviews. We'll be heating about 1500 square feet.