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Distance from the coast. I found that in Oxfordshire, in winter like this last week, it can get very cold, Benson was -8 earlier in the week. And in a summer heat wave it can be one of the hottest places without the coastal influence to moderate things. That "inland" effect is very evident in the mid west USA. for my sins I had 4 weeks just outside Chicago in summer, and found it unbearably hot, you really wanted to be in an air conditioned building or car to be comfortable. Then i went again for 2 weeks in December and found it unbearably cold. When I mentioned the cold a local said something like "cold, this isn't cold, you wait until it gets below 0" (he was talking Fahrenheit) I did wonder how much spring and autumn fall they had where the temperature was pleasant. I suspect not much.

Oh, I see! There was me being a bit dopey. A thread sealing compound will do it - I always use Loctite 55 myself - your PTFE liquid should do the job.

Not talking a pro one. Lidl were selling them last year for not much (though duty cycle of these things means you'd need to take regular breaks for it to cool down). Similar can be found on ebay. Should be a load faster and quieter doing that than chop saw. Pretty sure you could find an angle.

Can I suggest you use Illbruck FM330 air-tight foam? Pretty well all foam will help, but not all is air-tight, nor dries as flexible as FM330. More expensive, but just better.

Okay keep the container as a store cunningly hidden by the new workshop built in front of it.

Why. Slightly raised CO2 levels helps you sleep better.

I'd put a PIV unit it and just run it over night - you could probably run it on the lowest speed (2 W consumption) and at that rate it's not going to cost much at all to heat the incoming air We run ours on setting 3 overnight (7W) so that's 30 Litres per sec in a 291 m3 House volume it gives us an ACH of 0.37 We have tried it on a lower speed but we get condensation on the inside of the windows in the main bedroom so we'd rather have a higher ACH and no condensation and a little more energy spend heating the cooler air that is being forced into the house

I have an expandastore they can be put up and taken down by a few guys. Can be handballed around when in pieces. Don't see how it solves your problem entirely though.

Crane: top hamper - trees Plasma cutter - 🫢getting that past Debbie is, ermmmm ... Drag it out - there are several locals who would have a field day with that one. Its looking like scrap value 🤨

Probably crazy, but what would it cost to crane it out? Investing time and money into a 6 month temporary solution is gonna add up. If it has to go then this might be cheapest. It'll get recycled anyway so not too much of a waste. Might be worth investing in a new toy (plasma cutter) rather than a chop saw though.

Good work. Dont think i would try it.

Nope. I poured 27 cubic metres on our first pour with me and one helper. there was the owner operator of the pump working that, then just two of us using the vibrator and checking it was all plumb. Icf is very diy friendly your not pouring a flat house floor that needs to be within 3-5 mm tolerance your pouring wet concrete inside form work that you have already plumbed up theres a good few on this forum that have done their own icf including the pours.

Hello and welcome!

Hi and welcome. Your project looks great.

Seems a bit low, I think I'm spending about £5 a day on heating at the moment

Thanks for your input guys. I've been busy with my CO2 monitor to try and figure out how many additional air changes I need in a night to keep the CO2 constant. Then I'm trying to figure out how much heating that air will cost me, to try and decide if it's worth going for mechanical ventilation with heat recovery or not. Here are my back of envelope calculations. Measured CO2 increase per hour at night: 30ppm CO2 output from a sleeping family per hour 30L (From this website https://docs.openenergymonitor.org/heatpumps/measuring_ach_with_co2.html) 100sqm of floor area (rest of house is closed off) x 2.2m ceiling height = 220 m3 = 220,000L Therefore, with zero air changes would expect 220,000 * 30 /1,000,0000 = 136 ppm increase per hour (this is using the 30L family CO2 output) Let's say that indoor is 800 and outdoor is 400, so 1 ACH results in decrease of 400ppm I'm seeing a difference of ~100ppm between measured and calculated increase per hour, so getting 0.25 ACH To acheive a steady state, need an additional ~0.1ACH For 1 cold night: 0.1 * 220m3 * 1.2kg/m3 (air density) * 1005 (heat capacity in Joules) * 20 (temp difference on cold night) * 8 (hours in night) / 3,600,000 (convert to kWh) = 1.2kWh 1.2 /3 (COP of heat pump) = 0.4kWh So what's that? about 5p on the night rate?

But it still takes no credit for MVHR so as pretty rubbish, for anything better than an air test score of 3, which then has MVHR.

Drag the container to somewhere it will be accessible, then build the new workshop. Might annoy the neighbours a bit until the container has finally gone.

i used the clear matt and its nice stuff. Flood it on with a roller, leave it 24hrs. Rub down with an orbital on 240. Then flood it again, leave another 24hrs. Sand back again with 240. One final coat but wipe it down until its "dry". Left it a week before putting anything on it, jobs a good un.

Access..... We could just build the new workshop but doing that would prevent us removing the old container. Bummer Putting all my stuff in store would pretty soon rack up charges in excess of the monetary value of the container (1K ?) I think we might be saying - build the new workshop and take a chop saw to the old container - scrap value. 😐

Yep here are a few. The total depth of the thread in the socket to the lip is 16.87mm the thread length of the barrel plus the washer is 15.76. Also on the return there is no lip more a radius to the pipe diameter inside.

Agreed, you need the input data (fabric data etc) to be correct - but the same is said for Jeremy's tool. From what I've seen the modelling software for MCS new versions is more accurate as it accounts for PSI values. The newer MCS standard also allows specifically for an Air permeability input (the below is Heatpunk's): There's a good guide that explains this: https://help.heatpunk.co.uk/books/heat-pump-task-and-system-performance/page/ventilation-calculations-in-heatpunk

Can you share a photo?

If you are happy with the container, clad it with nice wood cladding, put a window in one side and tell here the new workshop is finished. If you really want a new workshop, it is obvious, the new workshop is NOT built where the container is, so the container can remain until the new workshop is complete and everything moved, only then can the container go. This is the very reason we got the static caravan included with our planning with permission to retain it. It does look better than a shipping container.

Really wouldn't do it myself,dip hands into your pocket and pay for a professional service.