I have a harman p68, It's 6 years old and about 2 years ago in a major rain storm I notice sparks and small flames jetting out of my outside pipe. Icalled my dealer for advice, they said to disconnect my oak. So I did that and had no issues, however my kitchen gas range has a orange flame when me pellet stove is running rather than blue.I think this is because of my pellet stove taking inside air.I think maybe I should reinstall my oak but I dont want to risk taking outside moist air into my stove and making creosol that could cause a fire in my pipe, I clean my stove often about every 35-45 bags and clean my pipe at the end of season. When problem occurred I was burning pelletsales.com this year I'm using energex hard wood pellets,any advice?