SteamyTea

A normal system, as we think of them, are basically for ventilation. But if you double the diameter of the pipework, you can, for the same air speeds, transfer 4 times the energy. That may be a useful amount. Note that doubling the pipe diameter is not the same as running two pipes off the same diameter.

Keep the room ventilated via the MVHR and the towels will dry quickly, and you will recover a fair slice of the latent heat as the water condensed in the unit.

One of many sites that tracks prices. https://www.indexmundi.com/commodities/

Over 27 years since I got rid of mine. The pictures are better on radio.

Can glazed area disproportionally affect which frequencies get though, so two smaller windows, matching the area of one, may reduce annoying noise transmission? Reflectance and resonance and all that, which may make a film effective. With coastal defences, they have stopped building curved walls and now build a barrier with rocks of many sizes and shapes. This randomness allows more energy dissipation than a fixed design, works well and is cheaper. https://glasstime.guardianglass.com/en/glass-solutions/sound-control/acoustic-performance-glazing

The number of times a day is irrelevant as it effectively only looses energy when there is no call for heat and a well set up system will be running most of the time. It will increase the surface area of the whole system slightly, which will increase the power emitted (Nicks point about putting it somewhere useful). An ASHP is more affected by relative humidity, cold dry air is still good for extracting energy. Don't use the centigrade scale, use the kelvin one to work out the percentage differences to get the real answer. I think the losses are too small to worry about, but if it is in the loft, you can build an insulated box around it.

This is an interesting issue. If the buffer stores 2 kWh of useful energy, that may only be 0.6 kWh of input energy. Loosing 20% of that will only be 0.12 kWh of energy. Less than turning on a kettle for 3 minutes.

"number skills" is often a problem with language (multiply, times, product, by) and how we mix units, and terminology, between industries (metre, decimetre, centimetre, millimetre). Why we don't stick to SI units I do not know, even on here people will talk about square feet, feet square, Kw/H, no wonder people get confused. Then we have the physics terminology, weight, mass, volume, density, temperature, energy, power, charge etc. Each of them can, correctly, be expressed in different units.

Take some pictures and post them up, then people will give 100 different opinions on the best way of fixing it.

How about getting a job with Building Control. Would learn all the ins and outs, then it would become easy to build/convert your own places. or the Planning Office, if he really wants to be hated.

Many of these type of things are companies that are selling. I once went for a position as a trainer (IT). Had to do a full scheme of work and deliver one lesson from it. At the debrief was told that I had not reached their expectations, then they tried to sell me training. He could sign up here and go to all the many topics that are discussed, and as most of us are not builders, he will get a different perspective on it.

Is it properly accredited and nationally recognised. If not, best avoided.

All joking apart about the 'he can help on my site'. Why not make that a reality, there must be half a dozen people on here who are building near you and can use a pair of hands. Makes the first qualification easy, the site safety certificate.

So did I, it don't show now. If the school thing bothers him, all he has to say is 'i had no choice'. What sort of City Job has he got at the moment? I also found returning to college was successful if I was away from my friends and family. I did an engineering (toolmaking) apprenticeship, then went off to university in Dorset. Was one of the best experiences of my life at 21. Someone else asked a similar question a while back about the best academic route for builders. I suggest studying Law, Physics and something else, may have been bookkeeping, or sandwich making.

But the French did, so you got a Zoe.

I think @Construction Channel did a formal apprenticeship fairly recently (to us old ones). Not sure if he still posts up on here, he is in Essex though.

The usual method is to do a technical course at college, something on this list: https://www.truro-penwith.ac.uk/what-to-study/our-departments/construction But at is age it will cost, so maybe an apprenticeship: https://www.apprenticeships.gov.uk/apprentices/browse-by-interests/construction If he does not already have a degree, then maybe consider one, if he does have one, maybe a Master. The really hard part will be getting experience, he may be lucky and find a small builder that is interested in training up someone, but would probably be better off in a large organisation, maybe the local council, or a railway company. There are also may aspects to 'building'. Maybe thinking about which part of the industry he is really interested in may help.

Just get a plumber to fit it, just show them what needs to be done. They are not going to charge much if you have got the unit in place, cables run and holes drilled for any pipes. Why pay a plumbers rate, and an hour of his time, to carry a cylinder upstairs.

https://www.flameport.com/wiring_regulations/BS7671_selected_subjects/zones_concealed_cables.cs4 Basically anything vertically or horizontally from a socket, switch or control/junction box is a danger zone.

The whole idea of the RHI and the FiT was to encourage business to install the stuff. Once the installation knowledge base was there, the MCS companies should be more expensive. Why the governments (both flavours) thought it was a good idea to pay customers, rather than pay companies I don't know, but that is the route that was taken. People moan that they can only get 5p/kWh for exporting electricity, but I think that is pretty generous, I pay nearly 11p to import it at night, and 23p/kWh during the day. Yesterday, if I had a 4 kWp system, I would have generated about 22 kWh, I only used 6 kWh, so my imports cost about 80p, but I could have got £1.10 for exporting. And that is without self consumption. If I could use half of my consumption, 40p worth, and exported the rest (16 kWh), I would have been 40p up. I wish I had a large enough roof to fit 4 kWp and it was pointing in the right direction.

Mate of mine had one like that, it still generated. He covered the glass with UV curing resin and played with it.

Good idea, I used to use WebWhacker to do the same, then they started charging money for it. Any chance you want to share the code then others can join it. Data is King. For the non technically minded, a similar thing can be done with Excel, using the Web Query to import some data.

Measure the flow rate, the output temperature on the hot pipe and the input temperature on the cold pipe. Then do the sums.

Why can't you use your ASHP as a cooling unit? Usual reminder that it is kW, not Kw.

Semi serious. was more thinking on the flat area. If you go for GRP it can be done in a lighter colour than the normal lavender grey that seems to be usually used. A lighter colour, in itself, does not make a huge difference as the surface soon looses its sheen. There is always aerogel insulation, though it is very expensive.