New Super 27 as of this year. Been burning it since October 1st or so. Lately it seems that it's been tougher to get it started and a good initial burn going. My wood is all nice and dry - fir and maple and alder mix. I use only cedar kindling and fir to get it started. Is it possible it just needs a good cleanout? The ash in the box isn't very deep. Any suggestions/tips would be much appreciated. Thanks!