Condensation on copper pipes

[Penners]

using the shower test above, we were on "maximum" until recently to get warm water... albeit a trickle at that flow restriction.

Our electric shower is thermostatic ([snooty emoticon]). I've noticed, during the cold weather, how much less water it emits. Presumably it needs to retain the very cold water in the heating vessel much longer for it to reach the specified temperature, before squirting it half-heartedly at my bald head.

 

[AMc]

At 60p a metre or less I'd insulate just to avoid having to mop up until you do the work.
http://www.wickes.co.uk/Pipe-Insulation-Economy/invt/210450?source=123_4