Onoff

Doing 3 miles costs me about 75p here! ? Get 400 miles from £100 of E5 Shell Super V stuff. A petrol, 2.0S Mondeo probably isn't the best station car. I do 12 miles a day through country lanes and steep hills on the way back home. Tbh I am a tad heavy footed too.

It was Radio 4 and they're a lying bunch of woke f***ers with an agenda.

Exhaust valve? Is that what you youngsters are calling it now? ?

Cough...red...?

When your battery pack dies in the car you'll be retro fitting a wood gas or chip fat driven ICE! ?

I said a while back that with leccy cars they have you by the nuts even more so than with an ICE unless you can generate your own from pv etc.

I'm f***ed, Band F

Bloke on the radio saying was cheaper to drive his petrol car than charge his Tesla. Like X3 cheaper.

What swung you to go for the Sunamp ? From the best thing since sliced bread they seemed to turn into a bit of a Marmite solution from comments I've seen on here. Old ones maybe being "better" than new. I remember @Jeremy Harris was well into it and giving Sunamp lots of feedback. I think a lot is down to the installer knowing the quirks and how to get the best out of it. Good to hear it's working for you.

Erm...yeah, we do! ?

I love to see the rich folk scrapping! ?

See @pocster it works! You know nothing troglodike!

I have a hankering to dig up the part of my patio that gets the Sun. Lay down insulation, ufh pipes then black tarmac. Big heat collector.

On the US / Candian solar sites they are quite big on passive solar thermal projects. Many are off grid and fuel/electricity can be an issue. This article is quite good imo: https://www.goodnewsnetwork.org/chinese-passive-solar-greenhouses-at-fresh-pal-farms-in-canada/ Out there, given the average property size they can of course scale things up - as you can.

Pity @SteamyTea doesn't look like that bird in grey if he's coming to visit...

Quicker to make, massively so. Not so much fun but quicker. Did I not link this already? https://www.builditsolar.com/Experimental/PopCanVsScreen/PopCanVsScreen.htm

If he has "metal" walls could he paint them black and run pex-al-pex across. Then polycarb sheet over the front. Insulate inside.

Screen collectors are possibly easier than cans. Why not build one as a test bed?

Conifers will burn...

Was that using KY as a pcm? ?

That South facing 21m wall cries out for a bfo Yank style collector wall imho. That's a lot of beer to get drunk! ?

As Mrs Loud said "Stop right there!" @Jeremy Harris who used to frequent here had 300mm of EPS under his 100mm concrete slab. The walls and ceilings were similarly "super" insulated. He had good airtightness. He calculated 8% of his heat loss was through the slab. I'll say again he had 300mm of EPS under there.

On a trading estate near me they literally sprayed the inside walls and ceiling with Icynene.

I know solar thermal evacuated tubes work even on a cloudy day due to IR radiation that gets through. Must build a big test bed can heater...