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I just can't make a regular rectangle work in the room without it looking stupid, the lost corner of the pentagon helps me out massively but it's not something I ever thought I'd get or need. For the best part of £2k it seems mental pricey. This other one is a whole world cheaper and probably just the same. Sick of it all to be honest, no fun this.

I posted some stuff a few years back about how you get, call it " reverse condensation". My post was driven as I live in Scotland. Here we get days, particularly on the west coast where the house is cooler on the inside and the Atlantic Ocean moist winds blows in. Most BH folk wrote me off as a mad Jock! It totally reverses the dew point calculation and yes you do get condensation forming on the cooler house surfaces. Now in the south of the UK you are not accustomed to this.. but if you introduce air con into a very well insulated house then this kind of reverse dew point and internal condensation is worth a thought. In structural terms the odd bit of water gas condensation is ok.. but too much and you have a problem.

I'll take you word for it that they turned up with some lose rebar and made it all good. That requires diagonal bars to transfer the shrinkage loads around the service penetrations and supplementary bars to compensate for the cut ones. My experience tells me other wise. I doubt this happened, forgive my old school sceptesism, rafts and so on are not my first "rodeo!"

MBC guys tidied all that up the following morning, and inspected before the pour . My bollocks are both accounted for

Nope, sorry. Looks a decent enough unit from the pics, but that price is just taking the absolute piss. 8mm glass is one up from a 6mm eBay jobby; for that money I’d expected to see that as a minimum but I’d also want to go and see it in a showroom before buying. You soon get a feel for quality, but hard to justify that price from a grainy pic (you also don’t know if the image is exactly the unit you’ll get. Why the pain of the pentagon? Just the heart wants one I guess.

But the photo shows you have happily cut the rebar without reinforcing not least diagonally to prevent cracking. You've dropped a bollock there!

Long shot and niche market I know, not I'm looking for a pentagonal shower and tray (1000x1000) but not finding a lot online that doesn't have abysmal reviews. I have found a "Matki-One" that appears to be quite/very high end and with the associated costs which are hard to swallow but if it's genuinely quality I'm for it. Does anyone have any experience with such an item, @Nickfromwales in all your travels have you ever came across one? Matki-ONE

Yes, the inverter too, it's part of the same stack. Sloppily I just refer to the whole unit as 'the battery'.

Depends what you mean by “batteries like it hot”. The charge transfer processes can happen quicker at higher temperatures, so if your aim is to charge/discharge the battery at higher rates, then higher temperatures help with this. But high temperatures is the worst factor for increasing degradation rates for batteries. If the battery is LFP, then you have an already high baseline for the battery’s cycle life.

I have had ours at 16oC for a couple of days. It have brought the slab temp down, at 15 we get the faintest of condensation on the manifold at 14 it drips off!

Waiting for my AliExpress solar shade "blankets" before I put the two tubed panels up. As for the pipes to connect the panels together I'm not sure 🤔 I've bought some Chinesium, corrugated solar pipes but don't know if they're man enough. The white "top hat" insert seems to be some sort of silicone rubber maybe? People elsewhere have suggested just using 15mm copper instead of the corrugated tubes?

It’s defo a bird. Magpies have eaten the rubber ring around my boiler flue, one beak-full at a time.

It's an interesting trade-off, as batteries like it hot and this move will reduce the efficiency and lifespan of the batteries when used in the cold, in winter. If you're only using them for PV self-generated storage, that's probably moot, but if like me you fill from overnight cheap rate then it's rather a hit. That said with 27kWh you have a lot to play with. I hadn't realised batteries could generate so much heat - presumably you moved the inverter too, and that was the actual heat-source? Unlike batteries, inverters do like it cold.

Just download ChatGPT and take all the effort out of it.

Just had our 27kWh Sigenergy batteries (LiFePO4) moved from the house to an outbuilding. The main reason for doing that was due to the plant room getting very hot but, whilst I am prepared to believe these batteries are very safe, the thought of losing our new timber-framed house to a battery fire was, er... troubling. If it goes up now I would lose my workshop but I reckon the fire brigade ought to have a good chance of stopping it spreading to the house 🤞 (The plant room is now running 7°C cooler on average btw.)

Quite. Our Q350 is using 21W - half a kWh per day - so next to nowt.

Same, what they going to do if you forget the digger isn’t a zero tail swing jobbie and you accidentally take out a wall, then because safety reasons the whole structure had better come down.

After just using a tape measure it does makes sense for smaller numbers but anything over 1m you measure the easiest way to read the numbers.

We just leave the MVHR to do its thing, windows open or closed. it only changing the air in a room every 3 hours. Not worth getting hung up on it. It's ventilation at the end of the day, not cooling.

All the rads are ok except the bathroom that is sweating a little, I guess we could just turn that one off?

LED lighting creating crisis for human mitochondria: Researchers.. https://www.newsnationnow.com/health/led-lighting-human-mitochondria-research/amp/ So presumably warm white is better for you than cold whilte.

I would tweek it down 0.5 degs at a time, leave for a while and check for condensation. You should be comfortable taking it down a couple of degrees. The lower running temp to will promote more heat uptake and a higher demand, so less cycling. It's a balancing act, so some trial error I am afraid.

WE are running our flow at 16 (checking dew point to avoid condensation) and have some cooling. We have mounted 8 PC fans under one rad as a proof of concept and it helps creating a small local cool zone, they are silent but we could actually do with considerably more airflow, may try a higher voltage power supply. Currently they are fixed using mini magnets but not that secure so may try mounting them using plastic trim strips. Heat pump is drawing about 1/3 minimum input on an hourly basis and cycling frequently showing we are basically failing to extract nearly as much heat via the rads as the unit is capable of even at minimum modulation. Inside air temp is 26C compared to 35C outside but no idea what it would be without the cooling.

You see, to me that is a right handed tape measure, you hold it in your left so you can read the numbers the right way up and use a pencil (or whatever) to mark off your length with your RIGHT hand Worth thinking about 😉

That’s not the healthiest option unless windows are opened?