We did 5 bedrooms, with 4 bathrooms, 2 ensuite, 2 with baths.
Works perfectly for our needs, and I'm glad we didn't do more unnecessary bathrooms.
We're expecting to be here 20+ years, so it's got to make sense to do what is right for you.
I'm going to be controversial - but if you're doing x2 units - why do you need the same ducting requirement ? Could you reposition one of the units - and reduce your ducting run length ?
Perhaps it's marginal - but asking the question
I've been following this with interest. I'm so pleased for you. My heart sunk as I read this. I'm so glad they sorted it so quickly also and had a heart, sleep well tonight.
It goes to show, when things go wrong, none of the "professionals" take responsibility.
Have a drink today. Take care of the cil formalities and don't forget the latest submissions that are required either.
This forum has helped me and so many others on so many issues over the years, and we're all here to give back.
Good result! 👏
Sure. Heat doesn't rise when moving between solids.
So it will try and move both up into the house and down into the ground.
The higher thermal conductivity of a liquid screed means much more heat captured/transmitted upwards into the house, instead of lost below.
You'll need a specialist installer for it. Likely to be a little more expensive.
We used cemfloor, if you call them they can point you to a couple of local specialist installers. I would suggest to get a couple of quotes and go from there.
You've always got the option of swapping sand/cement screed (75mm) for liquid screed (40mm) when dealing with a tight buildup.
It's a much better product also (higher conductivity)
I got a couple of quotes on C4 (it's pricey).
However, I turned it down as I didn't want a single proprietary system being a key dependency for running our home.
It works on a dealer purchase and service/maintenance model, and the costs add up.
I'm using Shelley for the ETRs, Ra2 Select for the lighting, and planning on using Home assistant to tie all the different systems together.