A
ajoint
if you change a gas boiler combi 4 combi do you have to drain down the heating side or just drain down half way?also adding inhibitor where is the best way to add inhibitor,thanks,ajoint
Welcome to the forum. Although you can post in any forum, the USA forum is here in case of local regs or laws
^^^ while continully flicking the light switches
Reply to the thread, titled "changing a gas boiler" which is posted in Boiler Advice Forum on Plumbers Forums.
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