UFH opposite end of the house to the boiler

[Super_Paulie]

after getting my domestic water sorted, cheers gents, https://forum.buildhub.org.uk/topic/32853-dhw-manifold-arrangement-options/ ive now moved onto the UFH. As my manifold is going in my bunker and the boiler in the loft it raises a few issues with the dedicated feed and return for the UFH. Am i better off doing as shown in the (simplified) diagram? that is bringing both the 2 ports down to the wiring center and then going back up for the rads. Also the return, i believe i need that "tapped back in" above the last rad in the house to avoid reverse circulation, so is the diagram accurate?

Cheers gents
 

[jayc89]

Hot water's taking the scenic route to those rads.

 

We have our 2-port for our rads in the airing cupboard upstairs (with the boiler and water cylinder) and have the cable from it ran down to our UFH wiring centre. 

[Super_Paulie]

yeah i know, its an odd situation. So you reckon the 2-port for the rads up at the boiler end? easy enough to run the cable.