Started a first fix today on barn conversion. Plumber has done first fix install as follows, ufh downstairs and rads upstairs, combi boiler. All straight forwad enough exept plumber has plumbed system heating wise as one and has only intention of putting one motorized valve on ufh but not on rads?? Havnt seen it done like this before, owner said he is just using trvs on rads to control them but if ufh wasnt calling rads wudnt be on, and when ufh is calling rads will come on too.? Thoughts