-rick-

If the price is good compared to others then maybe worth buying on the basis that you might want to be replacing the polycarb at a later date. I'd guess the polycarb will last a while then all go at a similar time. Glass would get broken one at a time over a period of time requiring occasional replacement. Either way you are replacing bits.

Completely anecdotal but I've seen more reports of fires from loose connections on 48V wiring to batteries than I have of LifePo4 batteries burning.

Though why bother? I doubt the system is using much energy with it's current behaviour so overriding it isn't just one more complexity that can cause problems.

The big risk was they'd run out of defence missiles rather than the attack ones. They have virtually unlimited supplies of JDAMs, much less long range weapons but they don't really need them now they have destroyed everything Iran has to shoot at their planes.

I lean towards Trump getting bored and declaring victory in the next week or two and things will become more normal (possibly with occasional lash-outs by Iran). In which case doing anything as a kneejerk reaction is a bad idea. If that doesn't happen and instead Trump decides to send in ground troops then the global economy is in a world of hurt. The impacts of that will likely be different from COVID so things that might have worked during COVID likely won't work here. My thought is to focus on being prepared. Know the different suppliers of things, monitor the pricing, know what you will do if something is unavailable. Basically plan for contingencies and be ready to act if something you need near term is becoming difficult to source (or is being offered at a big discount due to a cancelled project). But I would think that panic buying anything is just as likely to go wrong than right.

This is a good goal and I think that is an area that could be improved in the original design. Especially upstairs. If accessibility is a concern then the squarer bathroom is better than a long thin one.

TBH after looking at the others they seemed less suitable. They seem to require custom trays for the bins and they are focussed on bigger commercial size bins. But seems to be plenty of options so I'm sure you can find something if it's acceptable as a solution.

Based on what they say, maybe it would be sufficient to provide storage space/charging connection for an electric assistance device to move the bins, without actually committing to purchase one?

Gah, well this got on my mind so I went down a rabbit hole. There's a whole range of solutions out there: https://www.mastermover.com/applications/bin-mover https://bintowa.com/ https://www.industar.co.uk/product/tow-tugs-electric-movers/small/ https://wheelieezy.com.au/ https://emoveit.com.au/product/wheelie-bin-aluminium-trailers-3-x-240l-bins All look pricey or need a car/buggy but if its the difference between using the plot or not maybe worth it as a last resort.

Where precision/accuracy/sharpness matters people want to use things that they are comfortable with.

I expect there is a much simpler solution to this but I've seen someone on youtube build little motorised trolleys for their bins to take them out front. If you get stuck on this then something to consider. Having said that the one I've seen was based on a guide track and simple motors. If you don't own the road and can't alter it then you'd need something more sophisticated (and the more sophisticated the more difficult I guess it would be to get approval). I'd guess all you need is for something to make it easier for a less able person to move the bin.

@SimonD Is this available online somewhere? I've found https://waterregsuk.co.uk but that doesn't seem to have the same content as the photo you posted.

sorry, was saying it in the context of multiple acceptable solutions as discussed above. Informed specifier has the leeway to allow the installers choice of options within an acceptable basket but say no to crap options.

So everything leading towards pipe in pipe sandwiched at the join between eps and pir (likely chased into eps). so you get: - pipes insulated by the eps pir sandwich - spaced to separate hot and cold - individually ducted for easy replacement if needed - minimal disturbance to the insulation. Ie cutting is way less than 50mm Though as @saveasteading is paying someone to do this maybe the biggest decider is what his installer is most comfortable with?

My only experience with low energy input is when my last boiler failed and I used the immersion. 3kw rated immersion seemed to have no trouble getting my 170L tank up to temp within an hour (from too cold to shower to plenty warm enough - can't be more precise than that).