draining sealed ch system

28 Sep 2010
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United Kingdom
hi i need advice on how to drain a sealed ch system i have a worcester greenstar 24i junior condensing combi boiler there is no drain cock anywhere to be seen
the boiler is located upstairs in an airing cupboard in the bathroom i need to change a radiator in the bathroom to one of them towel radiators can anyone help?
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easiest way if you can't find a drain tap

is to turn off both valves on a lower rad

drain the rad

remove it and attach a hose to the valve and open it

repeat at other valve if need be

once its drained and you fit your rad replace the valve on the lower rad with one of these

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