I know this question was just recently asked, but I would like some input. I just got a cord of white ash. The trees were cut last year but was just split. I have been mixing it in with the 1/4 cord of hardwoods that I have left. (They are very well sesoned). This is my first year burning and want to know will this cause a significant creosote build up in my chimney. Some pieces hiss a little, but most of it burns right up.