It's getting closer to the end of heating season and I realize I don't know when is the best time to get my flue swept? Should it be after the heating season is over, or right before fall and the first burn. Or, does it really matter what time of year it is cleaned? I am figuring on doing an annual sweeping of my class A flue, but that may change when I see how much creosote is actually in there. I want to hire a professional for the first sweep, and may continue to do so. Any thoughts on that would be appreciated?