SteamyTea

followed by 10 lines of text about how complicated it is. It is not just control systems, there are accumulators, pressure valves, safety cutouts, replacing fluids. When a car boils over, you can just fill it with some water, but you really need to fill it with anti-freeze as well, and find out why it has overheated, which could be, in no particular order: broken hose faulty waterpump faulty thermostat internally blocked radiator externally blocked radiator failed head gasket broken fan broken fan motor broken fan belt and a few more things. The above are some of the reasons I think PV is a lot simpler and reliable.

@Ed Davies using FF 67.0.2 the lastest update as of this afternoon. Brave is based on Chromium and has an opt-in for their advertising system. I have not opted in. The main problem with Brave is that it is not a true portable app. Passwords are stored on PC. One thing I like about it is that it has TOR built in (just click on the user icon and pick from list).

This is just a quick, one sample, snapshot of a problem with Firefox Browser. This has come about from a conversation with @Ed Davies on Zoots topic about a slow computer. I have the latest version of FF and it is still memory hungry. The screenshot is of Task Manger showing memory usage. Brave has been open for an hour or so and has the forum loaded. FF is just opened up with nothing loaded.

That name rings a bell. They had one at the university I taught at.. It was meant to be for testing and training. Just after they got it, the company went pop, so no idea if it is still about. I liked the simplicity of the system as it was basically a panel and a pump, differential temperature controller and a pressure relieve valve.

If using ET on a drainback system, is there not a problem with the longevity of the ETs. The only Drainback system I have seen up close is the one that had an acrylic cover (it was formed into 3 large 'bubbles'). I think the company that made them went bankrupt a few years back (about the time FiTs started).

I go along with that. One of the problems that all trades suffer from is jargon. Something to just stop that would be a good move, then people can start talking a common language.

Someone, over at the other place, designed a simple system that was, on the face of it, under tubed (may have been flat panels). His thinking was that by eliminating all risk of boiling, the control system was simple and reliable. I seem to remember that worked well at scavenging to raise the base temperature up. I can't remember what he did for the final temperature boost though. Probably electric immersion. They are always good.

We used to put our sheets of plastic in a large, low temperature oven before vac forming. This drove off any moisture and made the process easy. The most sensitive plastic was polycarbonate, that took days in the oven. I can't remember what ABS was like as we usually injection moulded that, but the pellets still got dried beforehand.

Probably best not to call your BC Officer fat.

Is it one of those jobs that is a pain in the arse, but relatively easy, or one that is a PITA and difficult. I would think the second as you have to make sure that you do not damage anymore pipe and then the cleanup of said pipe has to be done well. Would it be possible to mark up the floor with a felt tip pen where the pipes are. If you use a good one, nice and fat and inky, it should still be visible after after any tiling has been removed. No good if it is a polished concrete floor.

What can be done to repair a pipe once it is drilled though. Or how easy is it to repair a broken UFH pipe.

Just a couple of weeks to go. Then I can write it up in the best undergraduate fashion i.e. late at night and quickly.

Pick the nearest station. https://www.metoffice.gov.uk/public/weather/climate-historic/#?tab=climateHistoric Local rainfall and flooding are not always directly connected. You have to take into account the local topology and rain catchment area. Then look at all the measures that have been taken to mitigate it. And that is as well as looking at local geology.

They have one called 'Tropical Pressure' down here. Would hate to think what the SI derived unit for that is, probably 'E's'.

Do you think I could use one to pre-heat the water in the header tank, which is almost above the bath? Snap

I got loads of them kicking about, could set some up and see what is happening. Not taken the bath panel off in over 10 years since I fitted the shower pump. Probably about time I had a look in there (soft water is great). A mate of mine did his second year university project on waste water heat recovery. All I seem to remember is that he thought the extractor fan took out more energy from the bathroom than the waste.

Something I may look at, sometime. Can't remember, do you have one fitted @jack

I had 20% knocked off because I live in the ex-industrial wasteland that is the horror of Cornwall.

I bought the cheapest one from ScrewFix, I am amazed how good it is. Similar to this one. https://www.screwfix.com/p/titan-ttb515stp-15mm-electric-nailer-stapler-240v/99925

I think there are still not any confirmed cases of legionairs disease, as opposed to the presences of the bacteria, caused by DHW systems. I may be wrong as it is a few years since a heated debate about this happened over at the other place. When I worked for the council, we had all the taps and tanks tested, part of the system got closed down and sterilised. Up until then, no one had reported any symptoms. After the system was isolated, a few people got ill and blamed it on the water. Go figure.

I have wanted something like that for decades. My cheap weather station is spookily accurate when it comes to predicting cloud cover. I wish I knew how it did it. I have looked for the algorithm online but had no luck finding it. I believe that you can get an API (whatever that is) for the MetOffice data. May have to look at that sometime. I was bloody cold this morning, but house was at normal temperatures. It has brightened up now, so feel a lot warmer.

My Aunt lies in Canada, 10° South of me, in Cornwall. So a lot more sun power as well as a lot more snow. We have palm trees down here, just like they do in the Isle of Skye. But they are not real palm trees, they are Cordylines. There is a Banana tree in Penlee Park, but never seen a banana on it. But back to ST, shame that there is not a simple, cheap drainback system anymore.

Have you factored in that DHW is pretty useless below 30°C and has an upper limit of 65°C (though that can go higher when grown ups are not looking).

Just been reading James May's ManLab book. There is a section about wiring a plug, as well as making a concrete kitchen top.

You may want to hold on a couple of weeks as I have been running one of my Silly Sunday Experiment (actually 50 weeks so far) about the thermal properties of different masses, but identical volumes. The data will show what is happening, not looking good for added mass. I also have some house data from a new build, hardly any difference between the heated and unheated sections even though they have very different masses.