SteamyTea

Every bulb in my house is LED. 3W, why I have so much baseload at zero. Takes the meter 20 minutes to realise a light is on.

Called 'integral skin'. Similar chemistry to those black, foam armrest on office chairs and your car steering wheel. Generally if you cut it, it absorbs water, so you will loose some of the airtightness.

Is your damp being caused by condensation, rather than something penetrations the wall. A lime slab is not going to help any really. A lot if insulation will though. To add to @Radiansuggestion about using heater to calculate heat loss, all you need to do is log external and internal temperature difference, then chart and calculate the slope, which will become power (W) per degree (⁰c or K). That way you do not have to try and keep the house at a constant temperature. Worth making a Raspberry Pi based logger, only cost a few quid and you can see what the RH is as well.

Comes down to marginal losses and gains. Heating a DHW cylinder or a buffer tank us cheap and easy. And for 8 months if the year, will probably supply 80% if your needs.

Or more correctly a 5 kW pump.

There is power, kW, and energy, kWh. Power is the rate at which you use the energy up. A PV system is a relatively low power generator, usually a few hundred watts. It is only when you multiply that by the time it runs i.e. 8 hours of daylight, that the numbers start to look impressive. So if you get 100W of power 2 hours a day (0.2 kWh), 400W for 3 hours (1.2 kWh), 2 hours at 1.7 kW (3.4 kWh) and an hour at 2.8 kW (2.8 kWh). When you add that up, 7.6 kWh, it sounds pretty good. But you could only run a 2.8 kW load, purely off solar for an hour. Luckily, because PV systems inject power (VxA) at a higher voltage than the grid, the nearest loads use that power. So say you run a 6 kW load for an hour, and during that same hour your PV generated an average of 2 kW, you are actually only importing at 4 kW, so paying for 4 kWh of energy.

When you buy a product from a reputable manufacturer, you are usually buying into the after sales service. It is nice to be able to get spare parts in a few years time, and you can tap into the knowledge base. Tempted to get one myself.

Try Sea Eagle then

Tastes similar to swan don't it.

Treat your BEV as battery storage. Then you are at least saving 17p/kWh over gasoline.

Like my ex who bought a 4 quid item, from Newcastle. Was a very long drive there and back. Not my car or fuel thankfully.

Do you get your supply by overhead cabling? Lightening strikes are pretty rare my end of the county, but a bit higher your side.

Which is about 5.5 W/m².K.

So nothing but an idea.

Well I tried to read it for free. Was going to cost £8. Good luck with it though.

Ah, Sundays, when I am driving up to Bucks, via Devon, Somerset, Gloucestershire, Oxfordshire. Don't think Avon exists now, but I would go though there as well. I am slowly learning all the names of the Rivers I cross.

Ah, the change, from analogue to digital

Me neither, sorry. I get my bulbs from Poundland, for a pound.

They will have diodes in them doing the work. probably more than one. I want one of these, as it sounds impressive. https://en.wikipedia.org/wiki/Cockcroft–Walton_generator

Diodes, they can do everything. https://en.wikipedia.org/wiki/Diode Just got to pick the right ones

And look how calm the place has been. He has liked a couple of my posts since the upgrade, I did not feel I needed to write a thank you note.

There has to be a difference between low power domestic systems and large scale generation. The cut off has been put at 16 amps per phase. Now that could have been 12 amps, or 25 amps, but it is 16, live with it. Or fill in the right form and pay the fees. It is a bit like taking a car test, you have to meet minimum criteria, but it does not qualify you to drive an articulated 44 tonner.

This is the crux of all heating systems. Old night storage heaters work well, if sized right and used correctly. Open fires can heat a place as well. Crap efficiency though.

Makes it worth getting a 3P meter as it offsets then imports at 35p/kWh.

I am seeing a lot of kw, should be kW.