gtxlr

It is worrying that these things aren't checked before signing it off.. ah well at least we've got to the bottom of it now. Just gotta live with a cold downstairs for the weekend 🤦

So I Managed to grab a plumber to have a quick peak today. Turns out the flow and return pipes are on backwards so the pump from the cylinder is fighting the pump for the UFH.... He's going to come back in a few days to switch them round. Thanks for your help guys

I'll check tomorrow, thanks

Hi John, Thanks for the reply. The issue I'm having is the WUFH won't go above 20°c not matter what settings I try, it won't send any hot water to the manifold. Hoping it's a settings issue but I wonder if the valve is stuck shut? Any thoughts appreciated, Chris

Morning all, I'm looking for a bit of help with my downstairs WUFH system. It's a new build house with radiators upstairs and WUFH down stairs. It's running a myson manifold with 8 loops using a grunsfos upm3 pump. Heating is via a valiant 3.5kw (I think)heat pump. Control is via 4x myson thermostats downstairs and upstairs is a vaillant sensocomfort . In the utility cupboard is a Vaillant hot water cylinder and a vr71 and vaillant control panel. Now the issue I'm having is the downstairs WUFH manifold never goes above 20°c so when we turn the heating on via the myson manifold it's circulating cold water and this never heats up the flooring. The blending valve is set to 50°c and I can confirm the loops are flowing and have been bled. I'm guessing I need to raise this temperature but unsure how to proceed? I'm hoping it's just a settings issue.. Any advice is gratefully received, Chris