22 October 2015, 22:28
Just a thought.....most central heating systems that are powered by gas have a pressurized system....so if your cold mains supply freezes up, you will not be able to re pressurize your system...if you have a vented system (header tank) you are okay ....push come to shove you can manually fill the tank...gravity does the rest....i have both !.......lucky me....NO...not at all....its called being prepared.