Hi Harry, Thanks for the reply. I have just double checked, the pipe
in question is to top up the sealed rads and is coming from the mains
supply so under mains pressure and is a grey 15mm plastic pipe and
clipped to the loft boards. Does this mean i need to insulate them.
The copper pipes are part of the radiator loop and to fill up the hot
water tank.

Thanks again,
Steve

, On 10 Dec, 17:37, Harry Bloomfield
wrote:
on 10/12/2009, supposed :

Hello, Thanks in advance for any replies.

I have just had a new boiler fitted in the loft and the person who
installed it did not insulate the plastic water pipes but did the
copper ones. Is this an issue or dont you need to insulate plastic
pipes ?. The pipe in question is going to the overflow unit to top up
the rads and looks to be coming from the mains feed which feels up the
water tank.

If copper and plastic have been used, then probably the plastic is ONLY
used for overflows - in which case no insulation is necessary.

--
Regards,
* * * * Harry (M1BYT) (L)http://www.ukradioamateur.co.uk