I had a PE Heritage non cat epa stove installed in early October and am already wondering when its time to scrub. I burn Larch and Lodgepole Pine with MC well below 20% and mostly around 8-15% and have been burning on a regular basis since it went in (zone 3.5). My last stove was in a different house and if I recall correctly it was a pre epa blaze king that came with the home (we purchased that house in 96). I hadnt discovered hearth.com back then so my knowledge about burning dry wood was not what it is today. I used to clean that one every three months but now ive been told that if I practice good burning habits it can wait until spring, even the insurance company seemed ok with my once a year answer on the wood burning questionare. This doesnt seem right to me but I want to know from you epa non cat burners if this is the norm or not. Thanks for any help you may be able to provide.