Thorfun

@pocster my hairy ones aren't as big as yours and I decided to connect a hose to my manifold to test it with water. no leaks were found. time to put it back on the wall and put the hep2o pipes in to it. should've trusted my work and not bothered with the testing! could've saved myself a couple of quick on a 3/4" male-male connector.

why is everyone so obsessed with what's fashionable? are you building for them or for yourselves? choose a colour that YOU like and that works. don't worry about what 'fashion' dictates. the beauty of self-building is you can be as individualistic as you like (within the limits of the planning department of course!)

Got mine from Jewson. Very happy with the quality and price.

good job. will be interested in how it works. don't gorget to keep detailed data from you testing using the correct units to keep @SteamyTea happy.

rockwool is good for sound insulation so this might be a good choice. 25mm thick x 108mm pipe size is £10.82/m exc VAT. I guess it all depends on how thick you want it. our heating engineers used this type of stuff for our ASHP flow and return internally.

doesn't give any sort of sound reduction values though.

wtf! I'm tempted to go with Rockwool held on with gaffa tape!

nice find. looks good. let me know how you get on.

whatever solution. you choose can you please update this thread with the results? you're ahead of me on this subject and I'd be very interested in your experiences.

@Nickfromwales has previously mentioned using Killmat insulation. here's one such example of a post of his and was something I was going to look in to for our poo-pipe running across the basement ceiling.

same as ours

can you quantify 'very slow' please? and how does that compare to water heated towel rads?

don't know! not got that far in our build yet. 😉 but i was going to simply go electric as it just seemed simpler

Wouldn’t electric towel heaters give more flexibility as they’ll heat when required rather than when the heating is on?

can't help with that as I only had external OSB but my normal procedure is 'wing it and hope for the best'.

I bought a FLIR camera. It’s brilliant and so glad I did. I’m sure it’ll be worth its weight in gold as I move forward with the build.

You’ll get nothing but great reviews for MBC on here. Our friends had an MBC TF and I watched it going up and was very impressed. We would’ve gone with them but the fact we were having a basement and the wouldn’t do the foundations and we wanted to save money by insulating ourselves meant it wasn’t worth it. but….we also used the same chippie as our friends and he said he noticed some walls not plumb or square and some other slight issues that would only have been apparent later on in the build. Nothing he couldn’t overcome but thought I’d mention that they’re (and no one is) infallible. still, if I had my time again I’d pay the extra and go for the MBC twin wall TF.

It’s a cliche but everything happens for a reason. best of luck moving forward.

For the cost of the hole saw I’d be using a jigsaw. In fact, that exactly what I did and it all worked out well!

congratulations!

I have a Huepar. It’s a great little unit. A few others on here also have one. Do a search and you’ll find some threads about them.

your foundation costs are pretty much half of what it cost me to build a 120m2 basement sitting on an insulated raft as well as the foundations for the rest of our structure. those QS costings seem crazy to me.

modern sewage treatment plants output pretty clean water. do your research and find the cleanest outputting STP and put that to the EA and see what they say.

i'm going to need to drop a ceiling in the basement to cover the MVHR pipes and other things. i look forward to seeing how yours turns out. i was thinking some kind of metal frame could be used? other option was joist hangers and timbers? it is a long way off though but my mind turns to it occasionally.

that is so awesome!