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Yes in Chester a shop I was working in, only had cooling, it was heated by the lighting. This was before the LED age. Plug in solar panels and batteries, are at the moment being considered, but as it stands not legal to use in this country, can be used in Germany, the balcony solar kit it seems...

From what you are saying, you seem to be describing is the heating found in schools and collages, where each radiator has a restricted bypass? With two pipes, but arranged in series not parallel, this arrangement also used with fan assisted radiators, the water always flows through the radiator...

I note at work we do have a one pipe system, steam goes in one end, and water dribbles out the other end, there is no return, but somehow I can't see that is what people call a one pipe system, does not matter if in series or parallel you need two pipes to every radiator, but I notice some...

@denso13 has given you all the answers, however I did find my own central heating has some cold radiators when the room thermostat was preventing the system from running long enough. If the system has been running for some time, each TRV head will close, so water will be forced into radiators of...

HHR Storage Heaters are heavy lumps, and one can't really fit them as a temporary measure to raise the EPC and then remove again, so it seems unlikely that because the switching is not controlled directly by the smart meter they would not count, but my internet hunt does not seem to produce any...

An RCD detects an imbalance between the lives, that's line and neutral. With a line to earth fault turning off an appliance with find it, but with a neutral to earth fault, the load will increase the potential difference neutral to earth, and so also how much leaks, so any load can seem to be...

And I #42 showed window mounted heat pumps. It can be done. The question is if it is worth it. To be frank until I did a google for "window mounted air conditioner" I did not know they existed. There were so many which I did not realise even existed. I have a cheap AC from Lidi I seem to...

It does not require new cables to have an off-peak supply. Some smart meters do have a fifth wire, to auto switch on items wanting the off-peak supply, but it turns over the whole supply to off-peak tariff, all you need is the heaters to be on a timer. There is a whole range of off-peak tariffs...

You did not say Infrared, that changes things. The infrared heater does not heat the air, it heats objects in front of it, so any thermostat which measures air temperature is not going to work, it is instant heat, so a PIR to turn it on as you enter the room would work, they are used where there...

I can't tell with double insulated cables their size, but my solar panels have removed the load on the DNO supply except when charging batteries off-peak. The latter is only a problem if I set it to charge too fast, and also run other items at the same time. I have 6 kW of panels, and 6.4 kWh...

This is also my thoughts, but maybe only a 13 amp plug, and not using 13 amps. My flat was also all electric heating/cooling, using one of this type of heat pump to both heat and cool, which sat in a box built into the window. In my case mainly cooling, flat was in Hong Kong, but if you want...

I wonder how many are having power stolen from them? I look at my own home, and we seem to be using far more electricity to what I would expect this is a trough and is my lights, TV, PC, heating, freezers etc. The lowest reading for today is around 200 watt, not a lot, and my total bill is low...

I had to re-read it all, so is it all going to pot again?

Be careful with British Gas, I had solar panels fitted, BG told me they will not accept the reading from the meter fitted by the solar panel installers, which was fair enough, I would need a smart meter fitting, again no problem, then when I completed the forms to get paid for export, they said...

The whole thread is about Hive, I will admit I don't have Hive, I have Wiser, and I will also admit my Wiser systems is not all Wiser but a mixture of many different makes, but be it Wiser, Hive, EvoHome it does not really matter, the whole idea is the TRV is king, and the hubs, programmers, or...

Pardon!

Can you give a link to Hive TRV's without batteries?

Sorry, I would not personally install UFH as to save money, I only heat rooms when in use, and the heat-up and cool-down times with UFH are too long for it to be a system I would want to use. As far as I can tell, you need to use the heatmiser unit for all the heating, it has relays inside it...

They look like batteries to me! This set of instructions shows how to change them on page 11, 17 and 18. British Gas do of course make non-electronic heads, but a Google for "non-electronic hive TRV head" gets the result Maybe you can point me to non-electronic hive TRV heads? There is a...

That's my battery changed. and not easy to find battery state main page click this which goes to settings, click devices and that shows the first page with all four Wiser units I have, then the third one down showing the TRV, and it shows second picture shown. I went to insights heat report...