Well, thanks to being home all week with a hurt leg, and nice cold temps outside, I've had plenty of time to diagnose my extremely short burn times in my Hearthstone Heritage. In my previous post, I'd said that I"m only getting an hour on a load of wood, and a healthy dancing yellow center flame was eating up all the wood with the air completely shut. Half of you thought it was an overdraft problem, half said air is coming in from my ash pan below. The dealer gave me some firebricks to cover the ash grate to rule out the air from below theory and .... The bottom theorists win! With the ash pan covered, my air control is much more accurate. I only have to shut it down to half before the screaming yellow flames turn into nice medium strength orange/yellow flames, and the stack temp holds its temp. For the first time since I've had the stove, I've got a load of wood going into it's 3rd hour. I've also broken my high temp of 450 for the soapstone by 150 degrees. The stove has been holding at 600 for the past 3 hours. Even if I let it go out now, it'll be hours before the oil heat kicks in. I'm liking this much better. I can't wait until next season when I've got some quality seasoned oak to work with. The only bad thing here is, I don't know how they can fix this problem. If the reason that the air coming in from the ash pan is due to the frequent expansion/contraction, how are they supposed to fix this permanently? The dealer is sending their guys out Tuesday, and luckily I have some definite info to supply them with. I just have a bad feeling that I'm going to be using this puppy with the firebricks for the rest of time. On a separate note, I passed two downed oak trees from a recent high wind day. What I wouldn't have given for a pickup truck and a chain saw. I'm sure somebody's capitalized by now. As always, thanks for all your input.