Alexphd1

we use that uv film on our Bridge and it works surprisingly effectively. So I am planning to use the same film on build with an electric roller blind. Anybody any dealings with midsar electric blinds?

No I have mentally accepted the 13k no problem there. But say it was 25k would it be worthwhile going off grid?

After receiving a £13k grid connection for two houses (there is a decent amount of work involved), I was starting to wonder when does it break even to go off grid. Shopping wisely 13k can buy a lot of pv.

It's actually two projects my parents and myself. My parents is approx 500m2 with 3 possibly 4 wet rooms. I liked the idea of boost with smaller machines ie one wetroom called for boost it didn't boost the whole house. The machine as a guide would be good for approx 275m2. I think I got ripped off compared to you.... I was £140 on fleeBay.

has anybody mixed different mvhr units together. I have bought a (new) polypipe hr03l on the cheap hoping I could get more unfortunately I cant get any more. I would be adding another very similar sized unit approx. 486m3/h. Should I cut my losses (if any) and buy two same spec/size machines?

Wash the car with hot water just kidding. Was planning on building a hot tub hopefully with left over icf at a later date. Would be running this of the heat pump so haven’t figured out how but probably could use this as a heat dump.

I would have a look at your temperature range on the thermal store heated by gas. 80 degree would have very high standing heat loss.

In my exsiting system we regularly see the bottom of our 300L UVC tank hit way above the 58 degree as heated by gas boiler with two panels. So as a feeder tank even if the 1000l hits 30 degree it's a big help. As for components it's just a differential controller, grundfos solar pump, expansion tank and prv that needs maintained. Also keep a eye on pressure for leaks. But if I was paying normal prices for components and labour at X amount them I would agree with you, it ain't worth it. Also this would be feeding the ashp thermal store so if big thermal store heats above ashp thermal store then St heat would be used for ufh but in reality I don't think we will get much energy from ST when we need heating in house. As for Rhi I have totally written off inc for ashp.

Planning to have it connected on a large preheat tank maybe 1000l. I need hot water 12 months a year inc late spring to early autumn when st does contribute something.

It was 12 new bosch fkc panels I'm taking 8. But for the 12 panels was £900. Flashings were more expensive than panels.

I am considering a very similar system. Large thermal store in garage with large solar thermal (16m2) with a preheat DHW water supply and convection heating of a normal size accumulator inside the house which is also supplied by inverter ashp and solar pv. There will be a mix of ufh and rads in the property. ASHP and in roof thermal panels already bought from eBay. Tbh if had mains gas I don't think I would bother with above system, it would be the smallest system boiler I could find and a 500l uvc/thermal store

Does anybody have any information on the polyplumb hro3 mvhr. I picked one up cheap and need to find more units. They're the last generation but it would be handy to know who originally made them.

Our neighbours power supply runs through my land exactly where we are building our house. I have to pay to move it around the outside of the house and we damaged it during excavation of my site. We have £ 1200 bill for repair.

I remember reading somewhere that about about the legality of an old wayleave. How do I go about checking this?

Tony, can you explain more on exactly what you done for waterproofing your basement. Cheers

Did you recently buy zont bracing?

Nudara for first house (parents) , still to confirm for second house(me).

Building two icf houses with a passive Slab in Aberdeenshire. targeting high insulation and air tightness. It's been a steep learning curve!

What's people used for hanging joists on icf, supplier recommends icf Simpson hangers.

Isolohr. He told me I had bought a expensive infill material!

While at a building show in Glasgow today, I was chatting to sales guy for a PUR passive slab. He told me EPS slabs was useless. 1. EPS shrunk. 2 EPS soaked up water. 3. When EPS was wet it had no insulation value. Somebody please tell this is wrong.....as my passive slab is on site.