The first thing you need to do is check your local building and fire safety codes. We must make sure that our chimney is cleaned once a year. A really large one can get obstructed inside the chimney, while a too small brush might not work at all. http://Ww17.cruiseboeken.nl/__media__/js/netsoltrademark.php?d=sammy.Web.id%2Ftips-for-heating-and-air-conditioning-the-home%2F