Hi All,
My UFH return temp is currently way too low coming back to the downstairs manifold.
It's from an ASHP, temp currently around 38degress, so I'm mixing down to around 30-32 degrees at the manifold for the UFH heating.
The return is pipe is cold, I'm thinknig there will be cold spots on the floor also, not tested. I upped the flow rates to see if that helped, to push something round, but the return pipe at the manifold stayed cold, all it did was make the ASHP work stupidly hard.
Any tips is troubleshooting return temps?
Thanks