MikeSharp01

Curiously since seeing that Sounthern Water have been granted a 50% hike in our water bills I have been looking at doing something similar. Perhaps not 4000l but probably 2000l I can cut our bills massively given our rainfall and roof area it should work for us.

+1 for Norrsken here, great job and great service.

Are they inward opening or outward is the large flat side on the inside then?

We designed ours to have the ProClima Tescon Profil tape on the frame face 10mm and then hidden by 12.5mm Plaster board, to be fair we also asked the window company to fit the tape on the outer of the frame but they said they would not do it because it would get damaged in the fit.

Welcome to THE forum for people like us! What is your build method, Brick & Block/ Timber frame / ICF / SIP / .....?

Yes and in some senses this is natural because the world is getting more complex with myriad new technologies being pressed into service for our delight (not always). This has two effects, firstly it means that the spread of jobs gets wider and so more specialised. If you think of a small circle's circumference and then about the span of a human mind you might get round a proportion of it but as that circle gets bigger with increasing technologies so the human span gets to be a smaller proportion. Secondly because technology is growing so fast you cannot expect your Granny to have much, if any, real understanding of it let alone ways of navigating through it this does not diminish their ability to be wise. In my view to cope with the increasing complexity tacit knowledge can be boiled down to a simple set of what I call bumper stickers. They work everywhere, not just on bumpers: Everything is a system. (Input / Process / Output) Everything is connected to everything else. (A change anywhere makes changes everywhere even if imperceptibly small.) Those who neglect History are destined to repeat it. (Learn from the past.) We are where we are. (Look forward to the future while learning from the past and keep moving.) The S curve is the pattern of everything. (New ideas come, grow and slow because their carrying capacity is exhausted - be on the look out for the next S curve.) Investment challenges change. (The more you put into an idea / thing / approach the more you get wedded to it - keep an open mind or run into a wall!) Thank the early adopters because they allowed you not to be one. (So learn to take a punt on new ideas sometimes and bask in the adulation!) Thought for the day x 7

Yes for many things they are. The graduate apprenticeships are 4-5 years long depending on the provider but they are expensive, in terms of day release, for the employer. The uni fees are all paid by the government out the levy income.

And it appears they don't! Not had it myself and it looks like this mob just went phishing - Good spot, .

Does that breach any regs I wonder and if you are having a big party would it not make sense to have a second one accessible without going through a bedroom, perhaps look at a Jack and Jill arrangement. I am also with @JohnMo in respect of sorting it now and then leaving well alone for the build.

Yep - seems so, do you think they have gold plated heat pumps? Still you have to feel sorry for them when your personal security bill is $24 million! (Mark Zuckerberg) - that's a few click throughs on Facebook and you still have to pay everybody else.

Sounds like a word we should all be clear on the definition of - just can't place it .

Ah the techno feudalist future on the march! A commentator once likened us to maggots thriving in the filth of a social media-driven, tech-obsessed future. Tech billionaires look on, grinning, as we wallow in the muck like pigs in excrement. Wonder if the plebeians of Rome or the medieval peasantry were so taken in by their equivalent of the oligarchs.

Informed by what / whom. Of that 1.4m how many will want to learn enough to inform themselves. They will rely on their installers.

Bring in the future homes standard immediately, allow the house builders to avoid doing it and quadruple the CIL levy if they do. The problem with be that house building will slow up as they can no long just throw them up so that impacts the completion targets - these feedback loops are a pain.

As things stand this seems to depend on several factors. A few of us have applied for and been granted more than 3.86 ( In our case 6.9kW) on a single phase. I think it might relate to pressure from HMG to get more PV and how many others are installing or have installed PV on your leg of the local sub station - which is kind of mad because although I might be granted 6.9kW because there is no uptake locally if, all of a sudden there is they could exceed the limit even capping the late adopters at 3.86kW.

Yes and it needs fixed.

@Jeremy Harris Can I ask a question about your SAP? Many on here have real issues with SAP not allowing a high rating if you have direct electric heating of DHW. Your set up does have this in effect, with some PV, but I guess that your SAP was worked out on your ASHP. Have I got that right?

Great news - do you think they are lurking on the side somewhere .

Hi Jeremy and welcome back. One of @TerryE's Sunamp's failed and he disposed of the acetate, cut the machine up and replaced it with a UVC - see his posts for details.

Yes and with good instrumentation you can charge people by what they take out-of the pipe. Presumably everybody needs a tank for domestoc hot water (DHW) though

THAT is the bit that is so wrong and would be so easy to correct. Not that easy, see here: https://www.sustainabilitybynumbers.com/p/electricity-pricing. The only real way is to eliminate gas from our electricity generation then the price could drop. We, the people, don't own our generation so the price is market driven and the price is down to supply and demand in the market. The wind farms can quote any price they like 0.00001p per unit, safe in the knowledge they will get paid the gas price.

Now we are in for it....

What an interesting journal! From ASHP in the roof to qubits cooling on the same page - great!

Not the current party they don't - might be a window there but perhaps not. The trouble is if we all stay quiet then for sure nothing happens and you should never underestimate a bunch of committed individuals should you.

Found this https://www.nesta.org.uk/project-updates/how-could-generative-ai-change-the-heat-pump-skills-sector/ article and associated heat pump AI chat bot. Give it a go and see if it tells the truth (or your truth depending upon your view. I asked it "How do I calculate the heat demand to size the heat pump in our new build?" and received the following output: " To calculate the heat demand for sizing a heat pump in your new build, you'll want to follow these steps: Conduct Heat Loss Calculations: Start by performing heat loss calculations for the building. This involves assessing the heat loss through various elements such as walls, roof, windows, and floors, as well as considering ventilation and infiltration losses. It's important to calculate these on an elemental basis and then aggregate the results. Use MCS Guidelines: Refer to the MCS Standard MIS 3005, which requires the heat pump to meet 100% of the heating demand at an external temperature condition that is exceeded for 99.6% of the year. This means you'll need to ensure the heat pump is sized to handle the worst-case scenario for heating demand. Consider Hot Water Demand: If your heat pump will also supply domestic hot water, factor in the hot water demand as well. The hot water load can be significant, especially in well-insulated buildings. Consult BS EN 16147 for guidance on determining loads for domestic hot water production. Consult with Clients: Discuss the typical consumption patterns with your clients, including their hot water usage and re-heat times, to ensure the system meets their needs. Avoid Simplistic Sizing Methods: Avoid using rules of thumb for sizing, as these can lead to inefficiencies. Instead, rely on detailed calculations that take into account the specific characteristics of the building and its heating requirements. By following these guidelines, you'll be able to accurately size the heat pump to ensure efficient operation and comfort in the new build. If you need further assistance or resources, feel free to ask!" MIS 3005 is publicly available but now 12 years old - presumably nothing has moved on since then! BS EN 16147 is not and would cost you £250+ so that would be an investment. As a member of the public I can get to see that at the British Library, but unless you live in London you will probably spend that amount getting there. Ho Hum. On the upside it exists, it is basically open source, you can fork your own version from their git repository and better yet they wany to hear from people who experiment with it - so something to play with when it's cold outside.