I currently have a Y plan heating layout.

I'd like to connect the conservatory UFH to it. The UHF has a
thermostatic valve in the return circuit and is situated some distance
(in terms of pipework at least) from the boiler.

Is there any obvious alternative to converting from Y plan to S-plus
plan (including a bypass for the boiler)? It's worth mentioning that the
UHF and heating are never expected to be on simultaneously, though the
system should be able to withstand it without damaging itself.


--
Skipweasel - never knowingly understood.