SteamyTea

The only really big difference is in the professional fees and connected services, they can be spread across many houses, rather than just one.

Chart the data by date and hour, then you should get a good idea of that is happening just from the load values.

You will have to elaborate

They had a large chain downpipe at Exeter University when I was there. Was just another reason to dislike the place.

The man that has a great face for radio. Like Bridget Bardot, the years have not been kind. And he wees on all his vegetables, so don't eat at his house.

Straight from the boiler at moment Assuming these two are related. To take advantage of the PV you will need a DHW cylinder. This can either be separate from the space heating system, or integrated with it. I am pretty sure that a combination gas boiler, which by the sounds of it, is what you have, can be rejigged to act as a system boiler. There are a couple of plumber on here that will know for your make of boiler. Do you know your space heating load, especially the maximum power for the coldest days? Do you also know what temperature you want the UFH to run at, lower is best. What is the nearest town to you? Cornwall is a long county and Mid Cornwall to is anywhere between St Awful and Hayle.

I would have thought that fitting a buffer/thermal store, which has an element built in, between the LPG and the UFH would do the trick. How are you dealing with DHW?

Do you have an electrical energy usage profile? Without one you are just hoping that lots of PV and oversized storage will cover your needs, this may not be the most effective way to design a system. Below are some charts (as we all like charts), that are from the coldest week I had last year. First chart is for the whole week, then charts for each day to show the variations in usage. There is not a great variance in usage, which reflects the decrement delay and consistent lifestyle I had that week. Below is the coldest day

The real issue is how that money is spent. Does it genuinely improves local infrastructure or just goes to general expenditure. We have to accept that no matter where a development is done, even on polluted industrial land, there will be ecological damage. Really depends where your personal ecological interest lay. This was an interesting listen, how microbes can eat up pollution, and how quickly they can develop to a new environment. https://www.bbc.co.uk/programmes/m001lyrn

Are these solar thermal or photovoltaic, or one if each? Can the heating be done via a buffer tank i.e. an ordinary immersion heating element in the buffer, then the LPG connected to the same buffer. A diagram of the systems is a good start.

So what sort of thing you thinking of trying out? There are a few of us in Cornwall, and a couple in Devon pretending to be this side if the Tamar.

Is this a job advert?

Does it smell any worse than the neighbours cesspit? The neighbour you complained about.

Not looked at your plans as I tend not to critique others designs. But if you can get a lot of South facing PV in the roof, you can easily run summer cooling from it. Going low energy is really not that hard, a sensible floor/roof area to wall/window ratio gets you most of the way there. Then get airtightness below 0.5 at 50Pa. Then insulated the largest, coldest (generally north and east) walls as much as you dare. No one ever said that all walls have to be insulated the same amount. Building regs are only the starting point, not the end point.

Temperature is the mean free path speed of a molecule or atom. Mean temperature is the mean of the sum of all molecules. When water is above 4⁰C, the density reduces with temperature rise. So at the top of the cylinder, the free path speed is going to be higher than lower down the cylinder. Some of those top molecules will be above 100⁰C. This is what caused evaporation. Nature is quite wonderful, and often not intuitive.

You can be filling a bucket from a tap at the same time as water leaks out of a hole in the bucket, Dear Liza. I think the question is wrong. What do you really mean, or have noticed to make you think this.

Aren't diaphragms one of the things

I would think so. I find the nicotine and tar stains hold the new paint in place.

I was not looking for fame, just like to know I am still in touch with reality. Getting there in into taphonomy after that.

Then Irfanview Portable.

If you are using a phone, there are applications that will reduce them. I use PhotoCompress (Android) It is probably built into a iPhone as there is nothing on Earth they cannot do, apparantly.

See that paperclip and Add Files. Click on the Add Files and select the ones you want.

For any latitude there will be an optimal angle that can collect the greatest amount of incidental light (direct beam) over a year. This does not equate to maximum power. Fitting brackets may marginally improve the total energy collected, this is called insolation, but may, if it causes some shading to other modules, or reduces the amount of time the module can face the sun, cause an overall decrease in energy. There is a meme that we should be fitting solar panels to all roofs before we build solar farms on agricultural land. This often touted nonsense shows a lack of understand of basic geometry, economics and engineering practice. Probably why the solar industry does not respond. Hardly worth the effort while they are installing PV at £45/MWh.

Bill Gates, Steve Jobs (if we was alive), and Tim Berners-Lee are all pensioners. C was started in the early 1970s, Python in the 1980s, Java, mid 1990s. Not exactly new any of it/them.

You will have to compare the m2 prices of the different system. Much of it does depend on how much you can get PV roof trays for, seems they can vary is price by a factor of 3 if you are not careful. Have a search here for GSE stuff. There may be cheaper suppliers.