Hi. I am looking to purchase a wood burning insert into my masonry fireplace. I have a very open floorplan with a balcony, so I am looking for a fairly large stove. The problem I have is that my chimney is very high and I need 34 ft of pipe for my liner. Many manufactures (i.e. Avalon, etc) specify a maximum chimney height of 30 ft or 33 ft. When the stove shop talked to Avalon, they were told that there is no guarantee that the stove will work about 33 ft, nor is there a guarantee that the stove will not be damaged by more than 33 ft. I believe I also lose warranty service from the stove shop where I purchase the unit. My questions are: 1. Is the manufacture's maximum chimney height of a stove a real limit? 2. What risks am I taking by installing an Avalon Olympic stove with 34 ft of pipe? 3. Are there other models that will work with 34 ft of pipe? I've pretty much ruled out VC and HearthStone products due to chimney height. I'd prefer a non-catalytic stove that heats in the neighborhood of 2600-3200 square feet. 4. Is there a maximum chimney height specified for Regency stoves? 5. My only other choice at this particular shop is a Buck Model 80 or Buck Model 91, both of which are catalytic. Buck specifies a 40 ft maximum chimney height. However, the cost of the 8" pipe (opposed to 6"), as well as the catalytist are negatives to me. 6. If Buck is one of my only options, how is the quality of the newer Buck stoves? Are they decent stoves? Thanks in advance. John S.