If you permit somebody who is not a Gas Safe-registered engineer to inspect or work on a gasoline boiler, cooker or fireplace in your house, they might not be certified to do the work safely. https://Uoft.me/index.php?format=simple&action=shorturl&url=https://forum.butwbutonierce.pl/profile/44105-commercialgas101/?tab=field_core_pfield_13