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English: Radiator of a central heating system ...

Radiator of a central heating system . Transparent background & converted to SVG by Rugby471. Original picture is here (Photo credit: Wikipedia)

I was talking about the possibility of starting the task of replacing many of the valves on the radiators on our heating system. Not every one needed to be changed and some couldn’t be reached anyway because of the things stored in the rooms they are in. Those rooms are currently not in use of course except for the storage of furniture, the furniture belonging to my sons. Should it be necessary to replace the valves in those rooms at a later date it won’t be too difficult but it will necessitate draining down the system again. So it was that in the afternoon on Thursday whilst E was out doing the weekly shopping I set about making a start in replacing the valves. First point of call, the top of the house into one of the two small loft areas in which the water storage tank for the heating system is located in order to isolate the water supply to the tank. It was then possible to drain the water out of the radiators without it being automatically replaced by the storage tank! Second point of call, the lowest part of the house, the cellar, where the boiler is located. I attached a hose pipe to the drain cock and led it out of the door into the garden then opened the valve. It was a case then of waiting a half-hour for the water to completely drain out of the system. I returned to the top of the house and opened the air bleed screws on each of the radiators in turn to test whether the radiators were empty. As soon as the first one was empty I began to replace its valves. I continued with each of the radiators in turn until I reached those on the ground floor. Of the five down there one didn’t need its valves replacing and one couldn’t be reached because of the furniture stored in the room. I managed to replace the valves on two of the three remaining radiators before E returned home with the shopping. At that time I stopped the work. It had taken me a little less than three hours. At the time of writing this on Thursday evening one radiator remains to be done. I have also to alter some pipework in the cupboard in the main bathroom in order to fit an air release valve there and then I have to fit a couple of ‘gate’ valves in the cellar beneath the wet room floor in readiness for the installation of a towel rail at a later date. The only form of heating in the wet room at this moment is from a fan heater at high level which is fine if wanting to heat the room whilst having a shower but not to have switched on all day long (in the colder months). Having a heated towel rail will keep the room reasonably warm whilst at the same time keeping the towels dry.

I am hoping there will be no leaks when the water is turned back on after the work is complete because that might necessitate a drain-down of the system again in order to fix it!

Shirley Anne

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