We burn our fireplace very often during the season and have it cleaned once a year, occassionally twice if we go through more than a cord of wood. The fireplace was built in the 60's or 70's and is oversized for the flue and the smoke chamber's huge so I guess there's lots of opportunity for creosote to build up. January 2005, we had a TSR treatment done to get rid of the glazed creosote that the regular sweeping didn't get. Now the glaze is back. The sweep who came last week wants to do CreAway treatments, to the tune of almost $400 -- and frankly I don't have that in my budget at all. It also seems like a helluva charge, esp. after $179 for a standard bottom-up sweep (after which I still have soot on the damper shelf, btw -- I don't know if he figured I'd definitley order the add-on service and didn't bother to clean up well or what). Anyway... I see I can purchase CreAway online and am thinking of doing the treatments and additional cleanings myself (as a pretty decent do it yourselfer) before the season gets under way. Any reactions to this? Any experiences using this product, esp. in the smoke chamber? Would I just remove the damper and brush the chamber with a wire brush once I've done enough teatments? Any help or info will be greatly appreciated. Thanks.