We're 200 miles to the north of you and have been burning for 2 months! We also abondoned the heat pump after a $400 electric bill in September.Had the first fire of the season yesterday, couple piles of kindling over the course of two hours then a slow climb into cat operating territory. Wanted to give the chimney plenty of time to dry out from any summer time moisture it may have soaked up. Stove ran perfectly...which is good considering the heat pump puked a few weeks ago.