https://www.openlearning.com/u..../gisselwesth-somhzm/
https://yamcode.com/
Why It Is Important To Have An Annual Gas Safety Check Gas Safe engineers must inspect gas appliances and flues every year. This includes shared appliances such as boilers. During the inspection the engineer will look at the flue. If needed the flue is damaged, he will take it apart. He'll also test each appliance for carbon monoxide. The engineer will shut off the appliance if deemed "Immediately Dangerous". You'll need to fix this before it is able t