Really could do with some help.
Have to drain down central heating which uses Combi Boiler, so no header tank. Can anyone explain step by step of wot to do and where to find things (keep reading bout filler loop? / and air vents and ensuring getting air out of boiler etc)
thanks in advance
Also refill process - thanks
Have to drain down central heating which uses Combi Boiler, so no header tank. Can anyone explain step by step of wot to do and where to find things (keep reading bout filler loop? / and air vents and ensuring getting air out of boiler etc)
thanks in advance
Also refill process - thanks