https://click4r.com/posts/g/18....801011/5-killer-quor
Why It Is Important To Have An Annual Gas Safety Check Gas Safe engineers must inspect gas appliances and flues every year. This includes appliances that are shared, such as boilers. During the inspection, the engineer will examine the flue and if necessary take it apart. He will also check for carbon monoxide levels in each appliance. If a device is deemed 'Immediately Dangerous' the engineer will shut it down it. You'll need to resolve this issue before it is allowed to be used again. Gas S