SteamyTea

You could use pipes, a pump and a small electric boiler or Willis heater. Or even s small ASHP. 40 m² is about the habitual floor area of my house. I did wonder about getting the smallest and cheapest ASHP I could find and playing around with it.

Water at 48°C, which is not an unusual temperature for an ASHP to get too. Is too hot to bath in. So just a matter of sizing the store directly. In summer the ASHP will probably become redundant.

Do you mean the actual rpm of the compressor, or how frequently it is on? Basically no is the answer. Have you thought of getting an energy meter. There are some optical ones that read the pulses on your main meter.

I am not 100% sure what you are asking here. The power of the pump is the voltage times the amperage, so 240 [V] x 5 [A] = 1200 W But you say that it it a 2.93 kW input which is 2.93 [kW] / 240 [V] = 12.2 A To get the consumption, regardless of the actual number, you multiply the power by time. So if it is really 2.93 [kW] and it runs for 10 hours, that is 2.93 [kW] x 10 [h] = 29.3 kWh Now if you have a inverter type ASHP, then the speed of the fan, pumps and compressor may all vary, this will change the amount of power used.

Give her a holiday in Devon, all the farmers still use them.

That is just the power, unless the light source, and the luminaire is taken into account, it means very little. 2500 W of 150 Lm/W lighting would be too much.

Then we would know for definite that out data is monitored and stored. Takes any guesswork out of it.

So the government has made a decision on technology again. From now on I shall type everything in Wingdings

Something like this

Does it do it after a reboot?

So if you have one faulty one, one delivered incorrectly and a proper new one being delivered, can I take the old ones off your hands.

Just seen this in the news about Richmond https://www.bbc.co.uk/news/uk-england-london-51255120 Reminds me about the old joke when we started to get North Sea gas. Or it could have been the 'coins' cast from ice that caused that problem.

And that is fraught with problems as it has to be a totally new scheme that was not going to happen anyway. And at about 2.5 kg/m2, a lot of ex industrial land is needed.

I found a fairly cheap on a few years back. Was with reference to a GBF member in Italy. Can't remember who made it, but the post should still be up there. I did talk to the supplier and I think it was s basic pulse meter. I did try making an ultrasonic one. But had no luck. There are instruction on how to do that on the interweb.

Is it zero carbon, or energy negative. Say you use gas or wood heating and produce 1tonne of carbon dioxide a year, you would have to give away at least that amount of carbon free energy to offset it. And there is still a tonne emitted. I am not sure how it works to be honest.

They will soon be munching their way through @ragg987s place as that is not far from Tring.

It is a conspiracy by the Rothschild. Mind you, took untill the 1990s before they learnt to cross the A41.

We had an architect, or 3, on here once.

Trap it, then starve the bastard to death as punishment.

Welcome I am in Cornwall, so what is this about being friendly.

Sun is coming out now.

Not really comparing similar things, but I was on one of the last flights out of Toronto when the SARS outbreak happened in 2003. Air travel was shut down after that. I am happy to stick to Hanlon's razor.

I was pretty close on the heat requirement figures, or they just used a slightly different price for the oil. I notice that the DHW uplift is once a day, 170 lt, by 10°C is 2 kWh/day, or, at 17p/kWh, £125/year. Changing your radiators is not going to be a straight swap. As ASHP work at a lower temperature, you need radiators with a larger surface area. It may be worth getting some quotes from ordinary plumbers about the cost of changing these, and any pipework. That bit is simple plumbing. Just say that they need to be bigger radiators as you are having an ASHP rather than oil. Then you can hunt around for a 12 kW heat pump, they tend to be a lot cheaper bought separately. If you get a monoblock inverter one, they just sit outside, no 'double plumbing' or special installation needed. Everything, apart from the controls, are in the box.

Employ them, probably work for a bottle of meths and a rock of crack. Cheaper than a labourer, who works for the same, but you pay the employment taxes.

I still think it is a safety issue. Sometimes instructions seems counter intuitive, not following them is how nuclear power plants melt down. Anyone willing to put an old paint pot half full of water on a stove, then compare it with a full paint pot on a stove. See which lid flies the furthest.