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Old Mod
Yes he does chalker.Forget the temperature of the floor. This should on ground source, be only mildly warm to toutch. It's the air temperature that matters. Does it reach 20degrees? If so its working fine, if you want the air temperature warmer, turn it up.dont forget on air source, it's a 24/7 heating demand.
If not, then you have a problem! Either the heat pump needs comisioning properly , or issues with trapped air in the ufh loops.
Ps.do you live in the Hartogate area! I know a Mathew Kitchen there.
Now you've gone and inherited the problem. Haha