I bought this stove at the end of last season for a good price. Once installed it was doing a great job of keeping the thermometer on the thermostat up so the electric heat wouldn't come on. Mind you it was May at this time. Summer went by and now it's winter. I've discovered that when the outside temp gets below about 43 degrees it can no longer maintain enough heat output to keep the thermostat off -- which is the whole point of having it. My wood burning stove always got the heat up, but was, of course, not as consistent a heat as the pellet stove. So far it has brought my electric bill down, but with a spec that it can heat 800 - 2000 sq ft -- I'm not seeing it. Granted we have a long open space, but still it's 1000 sq ft at most. I've use American Wood Fiber Pine pellets and am now using Turman hardwood pellets with no appreciable difference. Pellets are stored indoors. We got the thermostat feature which works when it's not as cold (i.e., it just runs continuously now). As far as cleaning I only need to do it once every 3-4 days depending on the type of pellet. After cleaning it pretty thoroughly recently, thinking it might be affecting the burn -- I see no difference in output. It's in the low 30's outside and I'm sure my thermostat is running less than it would be without it, but I really expected HEAT! There doesn't seem to be anything else to tweak on this stove. If you turn up the auger it starts to drop burning pellets into the ash bin, so all I can do is turn the fan on high and live with what it puts out. BTW when I lift the hopper lid it keeps running, which I'm grateful for (it was supposed to turn off). Any ideas how to squeeze more heat out of this thing?