Finally got the stove going. On first start up, about 10 minutes in I noticed a wood burning smell. Shortly after I noticed the 45 degree joint had worked loose at one of the seams. Shut the stove down and re-crimped the joint, RTV'd and taped for good measure (CO2 detector never went off). After a few nights of burning on HR3 and everything else set at auto, I do not seem to have any problems. The stove after about 1 hour will increase the temp on the main thermostat from 65 to about 71. The rest of the house doesn't seem to be too cool from not getting heat from the registers. I'll be happy if the stove will heat the whole house without using the heat pump, but especially the backup furnace. But that is not why I bought it. One last question. Is it normal for the draft/exhaust fan to cycle during operation? Once the room fan kicks on, I can hear the exhaust fan start up for about 1 second or two, then wind back down. It's like every couple of seconds on/off.... on/off. Even going outside you'll see smoke for a little while, then nothing. The only pellets that are readily available in my area are OHP (Ozark Hardwood Products), and I'm not having any problems. I've read mixed reviews, but for the price I'm happy.