Harman told the tech if the wood is too dry, it just burns up and doesn't "smolder" to produce the smoke to be burned to create the heat. I can see where if the wood is really dry it may not last as long; but I can't see how that would make it not go into AB. The tech that came out was going to go find wet wood so he could see if Harman was right. I immediately told him about you and how you burn wood from old houses and I was pretty sure that wood was very dry. The chimney repairman that came out today said our chimney is a mess. The liner is not insulated; the pipe from the stove does not connect to the liner; the liner has no terminal cap; and it looks like there is no metal plate at the top to keep air from flowing freely around the liner. He's going to give us a quote on putting in a 6" liner (to match the stove), with insulation, all airtight from the stove to the roof. I had hoped he could put some sort of cap on the bottom of the liner or figure out a way to block it somehow so we could at least use the stove for the next couple days, but we didn't have any luck at that. So, I guess we'll get to wait a week or two before we see if the stove is going to work once the draft issues are solved. I did learn a ton of info from this post and I want to thank everyone who replied; lots of very good information. I learned a lot about chimneys in a few short days!