i recently installed a wood stove with new double wall 2 sections and a section of single inside house. i have used this maybe 4 weeks so far this year. and maybe a week of solid burn time the other 3 weeks have been off and on burns (maybe only at night then not till next night and so on).. 95% of the wood has been nice seasoned ash.. the rest is ash that is not seasoned as well as the other. now i started noticing snap crackle and pop sounds when i first start a fire. it almost sounds like creosote falling down from above in the pipes. can this be creosote build up already!??? if it is creosote does this sound mean its time to clean pipe already?