EcoDan flow temp dropping over night at coldest time

Hey ​@razor, 

Thanks to ​@juliamc for supporting with this and hopefully we can get some answers for you soon 😊

​@razor do you or any of your neighbours have any paperwork at all from MCS or details of the installer ? Or indeed the developer, builder, heating design engineer etc. 

​@juliamc the company that provided the UFH is Therma Floor and the company that provided the heat pump and cylinder etc is Daly Group

I’ve sent you a private message. Click your profile icon to read it…

The website for Daly Group makes no mention whatsoever of heat pumps !!! I wonder if they’ve ever installed them before, or since. They also don’t mention MCS, which if it had been a gas boiler upgrade they would have had to had accreditation from, so no help there. 
Are you able to remove an area of carpet and underlay in an upstairs room and feel if the flooring board it getting any heat ?

I think all roads lead to you getting back to the builders and heating company. Best to get your neighbours together to tackle this problem.

Do you have a service agreement for the Ecodan ? 

​@razor shall I stop checking in on this thread? Are you still there?

​@juliamc Hi!

we don’t have a service plan although we’ve been in a year so should sort that out. 
Many residents have put I a formal complaint in the last few days. The cold weather has highlighted how poor the performance is. My money is on the composition of the floor on top of the UFH. 

1. get some better insulation on your outdoor pipe work, that’s the first place you’re losing heat and money 
2. get the carpet and underlay up so it stops blocking the heat to the bedrooms 
3. see if you can get a figure for the COP (coefficient of performance) from the Ecodan and use it to add to a formal complaint to the builder/developer. The COP ought to be at least 3.5 or thereabouts, higher would be better

Thanks. 
is there any comment on the thickness of the timber floor boards? As per the pictures above?

I read somewhere that 18mm thick was ok but that was on a diy forum, they said 25mm was too much. Haven’t heard from any installers (still hoping). You could post your pics on Facebook there’s an installer called Paul Spence who has a Fb page called Heat Pumps UK. 

Can you post a photo of the pipe work indoors, ie where those primary pipes come into the garage (I think you said that’s where your controller etc is).