When I posted that we were installing a HeatMaster G400 last Fall, I said I'd keep you updated. We got around to getting it installed late in the fall, just after the first major snowfall. In past years, we've burned wood we cut from the woods out back. Basically cut it one day and burn it over the next week. Usually we could get by until late December this way before ordering a semi-load, using the semi-load of logs to finish out the heating season. This year we ordered a semi-load in the fall and it lasted all winter. It was cut in October and we started burning it almost immediately, cutting from the pile. My point is it had very little time to dry; basically we were burning green oak. We've so far had no creosote problems (we started the year a bit worried over the lack of dry wood). Overall it doesn't make much ash and makes very little smoke. This spring when our wood ran out, we burned a big tree of wet pine and got the same result. We played with the settings in the controller and programmed it to come on more often as we had a bit of an issue with the fire burning out but since then it's been working great. Other than that, we have abused it almost any way possible and have gotten not a hiccup in response.