How to rectify plumbing planning error

[Tetrarch]

Our downstairs 2m x 2m bathroom is cold. It has slightly less UF heating than I wanted. Our upstairs bathroom is too warm as it has the non-TRV escape from the heating circuit. I'd like to change the escape rad to the downstairs bathroom

 

Problem: I have no side or floor access in the downstairs bathroom. The only way to run pipes would be from above

 

Has anyone got any recommendations how to install a top-fed towel rail? - I can get an 1800mm one that will help to minimise the visible tails

 

Regards

 

Tet

[Nickfromwales]

37 minutes ago, Tetrarch said:

Our downstairs 2m x 2m bathroom is cold. It has slightly less UF heating than I wanted. Our upstairs bathroom is too warm as it has the non-TRV escape from the heating circuit. I'd like to change the escape rad to the downstairs bathroom

 

Problem: I have no side or floor access in the downstairs bathroom. The only way to run pipes would be from above

 

Has anyone got any recommendations how to install a top-fed towel rail? - I can get an 1800mm one that will help to minimise the visible tails

 

Regards

 

Tet

I tried this once, and it was a total flop. 
 

The flow just bypasses across the top couple of rungs, and buggers back off upstairs. 
 

I had to re-pipe it (I did this with surface mounted chrome plated copper pipe with chrome compression fittings, and it looked ‘not terrible’) and send flow and return to the bottom of the rad to make it work properly. 
 

Vertical or column rads are a pita to get to function properly, towel rads even more so.

 

You could try using a dip pipe, bonding it the the valve stem internal bore to push the flow to the bottom of the rad, if you are competent DIY’r and don’t mind taking a risk.