We are having some problems with our Blaze King Ashford 30. We have about 18’ of single wall pipe and then double wall out the ceiling to outside. We have already replaced the interior pipe once in 3 years due to small holes in the pipe. I’m assuming this is from creosote build up and the hard chimney brush that was used to clean it. We try to clean the pipe twice a year if possible. We burn as hot as we possible can to get the creosote to burn but it doesn’t seem to do much. The pipe is now making a sizzling sound right where it connects to the stove. There doesn’t seem to be very good draw anymore. There is also drippings of creosote coming outside of the interior pipe. We have only been burning 13-14% moisture wood for about a month. What the heck are we doing wrong? Thanks