Central heating Q.

Most probably. Not always (there were systems called single pipe) but usually you'll be OK.

Coo, that was quick :o)

Thanks Mike, I appreciate it.

Dave.

Even single pipe is OK if the radiator has valves at each side, as the pipe provides a path for the water flow.

If one end is a thermostatic radiator valve, then just turning that off probably isn't good enough -- they don't usually have an 'off' position, just a low or frost position. You need to remove the thermostatic head and replace it with the blind cap which comes with the valve, and will seal it off regardless of the temperature.

Mike wrote :-

I thought single pipe was what i've got

______ ______ |__R__| |__R__| F____|_____|_________|_____|________R

excuse the crude art

Regards Jeff

If this is what you have then yes. Do you have valves both ends or just one ?

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It will be best to get two blanking caps with rubber washers from your local plumbers merchant (if you tell him what you are doing he will know what you want) to fit over each valve outlet just in case the valves let by or get knocked whilst working in that area.

Trevor

Mike wrote :-

Valves are at both ends, one at top of rad and one at the bottom.

Regards Jeff