Can you all give some recommendations on rear venting stand alone stoves? I am going to vent through my existing 8" prefab fireplace by putting in a 6" wrapped pipe up the existing chimney. I have a tri-level house and it is 1500 square feet. I have looked at the hearthstones, but am wondering what else is out there. I would like a catalytic stove with a blower (is a blower necessary????). Thanks all!