We came to service the boiler. Two people arrived, the one who watched had no idea of physics, although he was already gray-haired. He dragged the boiler, which had not been lit for more than six months, to full capacity. Now I am looking for a new boiler (the welding seam of the heat exchanger was deformed from a sharp temperature drop). Do not trust them to light boilers and carefully monitor their actions!!! However, such pirouettes are not the first time for them. A year ago, the overhead valve was clogged with grease during maintenance and the automation on the boiler was broken