Almost 2 seasons in and all I can say, is I love this thing. I never gave my 1 month review, but I never really cleaned it till the end of last season. So far this season, I have emptied the ash pan 3 times. And it is FULL when I empty it.
I still only run it on level 3 on t-stat mode. Most nights, it idles on level 1, keeping the bedrooms about 71* (average). But I also have a rather large wood eater right next to it. So I am adding a few extra BTU with that
I ended up replacing a few parts. The hopper gasket (internal), the door gasket, I added a 2nd layer on the ash pan gasket, the new high flow sail switch, new updated high flow exhaust manifold, and I also closed up about 20-25 holes, in the upper sides, front, and back of pot (total on all 4 sides). I must say that the burn is Awesome. Compared to the 1st day of install and no OAK, to today, with all updated parts, board, and mods, it runs like a champ!!
Love this furnace, but love the fact I am replacing the Quad (gonna try again) this year. If the new stove works as I think it should, I may not use it much next year. Just to play with the new baby!!
Anyways. I figured I would update this old thread, for future reference and those that may look at the Fahrenheit 50F. It's a pretty stout unit. Even though its only rated at 50,000 BTU, it can hold its own.