Also if you don't come under among the above classifications, it's still worth getting in touch with your local council to see to it there are no specific regulations in your location. http://bcns.com/__media__/js/netsoltrademark.php?d=cooperative-flamingo-z5s1gf.mystrikingly.com%2Fblog%copyright-homeowner-s-guide-to-comprehending-heating-and-cooling-terms