Good to see you advising people not to play with a boiler if your not compitant but if its an oil boiler its an oftec guy they should contact not a corgi guy.
I have had people ask me if im corgi reg befor i work on their oil boiler and inform them its Oftec i need to be. (lucky im both)
I have had people ask me if im corgi reg befor i work on their oil boiler and inform them its Oftec i need to be. (lucky im both)