Search results

Is that enough to verify the blending valve isn’t working?

Am I right in saying that the temp to the floor is the flow temp plus return temps divided by 2?

Edit return temp on manifold is now 25c

Ok so have turned heating flow temp down fully. I’m now getting 26c flow to manifold and 24c to return. Blending valve still set at min. I then upped the heating flow on boiler by just under quarter of a turn. This then got the flow temp to manifold to just over 40 and return at 30. Blending...

Ah OK. The return temp is never quite as high as 45, max is about 35, so 55+35 / 2 =45c. Not entirely sure if that’s too hot for tiled natural stone tiled flooring or not?

Yes ok, this can be very random and in most cases is 10c or slightly more

Thanks again. Excuse my ignorance but is dT the temp differential between flow and return temps? Is it right for the boiler to be running in that way with just the ufh on?

Thanks very much for your reply. I’ll try to answer as best I can (some of this is new to me). Flow rates remain consistent regardless of whether ufh and/or central heating to rads is on/off. There are three loops, one is 74meters and is 1.8lts flow rate, second is 84meters and is 1.9lts flow...

@johnrhug @Johntheo5 hi chaps - apologies for jumping in on this but this is the same issue I am having with the Wunda system. I have also had Wunda suggest the 22mm pipes are too ‘big’ for the system but I’m now not able to swap these out (it’ll mean ripping out plastered walls etc). I was...