https://output.jsbin.com/xaqijujiwu/
Why It Is Important To Have An Annual Gas Safety Check Gas Safe engineers must inspect gas appliances and flues annually. This includes shared appliances such as boilers. During the inspection the engineer will inspect the flue. If needed it is necessary, he can take it apart. The engineer will also test for carbon monoxide in every appliance. If an appliance is declared 'Immediately Dangerous' the engineer will remove it. It is necessary to fix this issue before it is allowed to be used again. Gas Safety Certificates Gas is a popular energy source