Have found drain plug but??????

[Screwed]

Hi,
Am putting new radiators and valves on in the lounge. We have a sealed Ideal combi system. I can see the drain valve on the bottom of the boiler but don't know how to release it? Do I need to remove the front of the boiler? Also, will there be any probs putting thermostatic valves on (we live in a flat and only have 5 radiators?). Want to drain the system to cut and shorten the pipes.

Thanks,
Mike.

 

[johnwilson]

that probably isnt the drain it will be the blow off valve and shouldnt be used for draining.you should drain from a radiator the drain should be on the pipework below the radiator usually under the floor

 

[Bahco]

Do not put a TrV on the rad nearest the thermostat. You should always have one rad without if there is not an automatic bypass fitted.

Make sure you drain properly too.