I am looking to move an upstairs radiator and so need to (partially at least to ground floor) drain the central heating system down. It's a system that heats up a combi tank (that also seems to double up as an electric immersion tank). The tank and boiler are both in the loft.
But I cannot find any drain off valve anywhere. And none of the radiators have drain valves either.
Does anyone have any tips on how to drain it down??
Thanks for your reply Peter. Unfortunately, your answer was too late as I needn't to do it last Fri.
In the end I turned off the water, then opened the bleed valves on the downstairs radiators and allowed the water to drain into buckets. Fortunately they were fairly new rads so i was able to turn the valves so they pointed directly down into the buckets, so there was hardly any spillage. I only needed the upstairs to drain enough to plumb in a bathroom towel rail rather than drain the whole system. So this did the trick. In future i think I'll get one of those self cutting taps.
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