Well I'm pretty damn happy after a lot of work, money, and wondering. I got the NZ300 installed yesterday to the point that I can now run it. The new NZ3000 has been running since 3:30 this afternoon ( 7.5 hours) and the house is up to 79 degrees! Its 45 degrees outside and in the last 7.5 hours I have burned 8 pieces of wood and just put 3 more in. The blower is on its lowest setting and the draft is as low as it will go without shutting down the blower. I will see what I have in the morning. The wife just came home from work and walked in the door and said all I wanted was the chill taken off not a sauna. At least I would have to hear the 3 ladies in the house complaining they are cold this winter. I will post more as I play with it more.