A few quick questions

[spoony77]

Hi people

I had a rad moved today and it has left me with some exposed copper piping which needs painting - do i use straight gloss or does it need undercoating and do i do it cold or when the pipes hot?

Im after a wireless roomstat which of these is the best/most reliable?
Honeywell CMT921 or Danfoss TP5000?

What does it mean if your rads are significantly cooler at the bottom than the top?

Any advice much appreciated.

 

[John506]

You can just gloss straight onto the pipe when it is cold, let it completely dry before turning on the heating.

Radiator cooler at the bottom means the system is sludged up and needs flushing with inhibitor added.