Hi All, I have a large Lennox Canyon ST...20 years strong!But, a very, very knowledgeable chimney sweep came to clean, and he would not "certify" it. Seen its day. So, looking for a replacement. Need a "beast" of a stove. It heats the entire downstairs. The Canyon was a dream , so thinking of a Jotul or Vermont Castings .Need BIG and BAD to accommodate a "great room" with very high ceilings. Would appreciate recommendations. Thanks in advance to all!