So apparently I haven't done my homework. I thought I purchased a P61-2 but in actuality I purchased a Pellet Pro II. Any huge differences other than the age? The circuit board was hit by lightning so it was replaced with what appears to be a new P61 circuit board. I'm assuming these stoves are very compatible because they are so similar. The BTUs should be close too I would hope? Hope I made a good purchase. I read reviews on here they seem pretty positive. Thing is built like a tank.