SteamyTea

How about the simple 'Jamaican Joint', can grow your own in a planter.

What figures? I think you get kW and kWh confused. Or, if you prefer your own units

Yes, and mine, just. As I use about 1 kWh/day peak, the rest is off peak, which works out at about 85% of my total usage and considering, in 32 years my maintenance amounts to 1 immersion element (changed cylinder, but that would need changing regardless). Any heating system can be designed to cope with any temperature differences, so a bit of an irrelevance there. If you are still under the impression that even basic storage heaters are useless in all circumstances, then you are very misguided.

They enjoy the challenge of getting a flat roof watertight. Better off asking a boat builder to design one than an architect.

As there is less than 0.5p/kWh between off peak electricity (does depend on contract) and LPG. Why would anyone bother with LPG. I think it is just selling an old home heating model that is now superseded.

I remember the name, but nothing else. Many ASHP get rebranded, so there may be some in the UK, have a hunt on Alibaba and see what looks similar to what is available in the UK.

This is not new technology, prices in the UK may drop though. It is worth looking at CO2 heat pumps and the older gases are being dropped. This may affect long term servicing.

3 dissolved companies in 6 years for one of the directors. So no problem with the 1 year warranty then.

Can we start something in 'Boffins Corner' about this.

Because we are trying to do it with lower thermal losses, different energy inputs, consistent and reliable outputs, at known quantities, and lowest capital expenditure. Why I like vented system heated by a simple electrical element.

12 cans of Heinz Cream of Tomato Soup is £5.50 at my local Tesco. Like ketchup and baked beans, accept no other than Heinz.

Spiders go looking for water/moisture, or a mate. That is about if for their lives, apart from eating.

Just to highlight the variation of 'normal days'. The charts below all have the same external air mean temperature, within 0.1°C. I shall restate, this is not modelling a house.

I have been running an experiment for over a year now, just three boxes, exposed to the weather, with the same volume of different masses in them. This does not model a house, but shows that during cold spells, there is effectively no difference. Hot spells are a bit different. Mean temperature days are so variable that it is hard to draw a conclusion from temperature differences alone. Below are the coldest day and the hottest day charts. Lots of variation on the hottest day.

I haven't. I did think of getting one, as @JSHarrissent me a link to a Panasonic one that was pretty cheap. But when I sat down and worked it all out, I decided that I would stick with my storage heater for a little longer. Storage heaters are just so reliable and I only need them for 6 to 10 weeks of the year usually. Some years I have just used a £10 fan heater. The only thing with an airthight house is that if you go away for a few weeks and leave the heating off, damp can become a problem. I fancy fitting MVHR, so that would sort the problem out.

Sooner or later you will be.

Probably get away with half of that. If you can get some local weather data, you can see how often it will not supply all your space heating needs. The MCS rules is that a heat pump needs to be able to supply 99% of all heat load. It i a reasonable rule to work to as it builds in oversizing, which improves the CoP. Thing is about using an ASHP for space heating only, is that it may only be needed for 3 or 4 months of the year (though Kent has a cold wind), so may be worth considering using to to heat water during the other times of the year. Just needs more detailed modeling.

Interesting that EON said that undersizing inverters was an industry practice. It is not unusual to undersize an inverter as this often gives better performance at lower light levels. It all depends on the performance curve of the inverter. It will be hard to tell if you are taking a performance hit during the winter months. Also worth noting that PV production is also affected greatly by hours of daylight and not just intensity. A little for a long time can give the same yield as a lot for a short time. Temperature can also have an affect, this is why systems can often give better daily performance in March/May and September/October. Though that does depend on the azimuth and module angles. You also did not mention the 16A/phase limit that most people have, or how you got special permission to have a larger system. Did EON sort all that out for you?

Air to air heat pump, get some cooling too. My house is just a bit smaller than yours, but terraces, and in the warm SW. I use storage heaters in E7. Don't usually need more than about 10 kWh/day. Small A2A would easily do that.

Noise. You should be able to get a dB meter on your phone for this. Need to see how noisy it is at full chat as well. Worth looking at the MCS guidence. Then there is start up current. There is a bit of a myth that they still draw a lot. Rather than flow rate, worth looking at temperatures. Compare current and noise at different output temperatures. Then there is general sturdiness, can kids lean bikes in it without a brake lever hitting the collector coils. Size and mass are useful too. Easy of setting up would be very helpful. Are the default setting good, do you need to buy a command unit separately, can you access data via a laptop or phone. Going to be quite a challenge to do a meaningful report on one. Good luck.

Think it is acrylic, we used to use tonnes of the stuff. Smells nice, but makes you dizzy.

That does seem to be the way small ones are made now. Block and liner was all the rage in the late 80's. They were cheap to install and cheap to remove. Depending on size, you can get GRP moulded ones. They can be tricky to install correctly. Insulation, which was not considered much when I was dealing with them, is now considered much more important. All domestic pools end up cloudy. Thankfully the chemical dosing is pretty easy these days, unlike a spa bath. Is your pool indoors? If it is, then make sure that anything holding your house together is rust proof. Don't rely on the AC/Heat Recovery to stop the chlorine rusting everything.

I bet they still don't eat curry and kebabs.

There is a similar trick to play at Christmas. Collect dog shit, gift wrap if, place on neighbours door step, set fire to it, ring doorbell. Hide and watch as they stamp it out. Makes me grin every year.

I was, when young and foolish, stripping wallpaper off the walls, while drinking vodka with a mate that was helping me. The challenge was to see who was the last one standing. We had to go out that night to meet other friends, we peaked a bit early I think. I won the challenge, but rumour has it, I am still banded from Weymouth seafront unless fully clothed. So I suggest best to avoid all alcohol, or Weymouth, and WPC Wright. Not that she will remember my face, she never looked at it once, saucy mare.