Does anyone know what this is for?

[ret2011]

Is it something to do with underfloor heating: It looks like some of the parts are missing but can't find another kit to compare it against.

All items are marked Rehau...

 

[Alan.P]

Rehau, do all sorts, from ufh to windows, according to Google at least. Have you had work done, is it left over from a job ?

 

[Gazzer]

Something to do with Underfloor heating I would say.

 

[ret2011]

No I've not personally had any work done, (was part of an auction job lot)

Someone else also said underwater heating...

 

[Alan.P]

Not underwater heating, wet underfloor heating, pumped hot water through pipes.

 

[Uheat - Keith]

Not anything our Water U/F Heating Technical department has come across.