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That's awesome. To be fair, our dog won't even go outside on days like today. Only downside of the app is that I can now actually see how much electricity my family waste by leaving stuff switched on!!!!! It's turning me into a grumpy old man.

Okay, made some progress on this: 1. The Shelly EM and clamp turned up and I was able to hook them up and get the app working without any hassle (YMMV). Actually quite an impressive little device. Physical installation was trivial (put it on an unused lighting circuit from the consumer unit)...

Not sure I follow? I know we have high consumption (from the bill) but now I need to figure out what is causing it (whether that be a device consuming high power or a habit within the household). I don't see how the bill helps with the latter?

Sure, if time were no issue and the culprit were running continuously, this would work perfectly well. Unfortunately, I have 18 circuits. Observation time to get adequate resolution would need to be ~1 hour which would mean 18 hours without power to collect the full set. If I then want to find...

Great, thanks. I'm happy working with wiring and actually have a spare electrical box right next to the main incomer to our boards. I don't have the Pi unfortunately. There's a home assistant app for IOS but I doubt it's the same thing. Either way, seem like this is a decent enough solution...

Thanks. I'm finding my feet with this. Is 'Home Assistant' the Shelly app or a compatible third party app? Ohhh, and to be totally clear. I'd need to buy the Shelly EM, 120A clamp and that's it? I'm assuming the app is free.

Yes, I was thinking of one of these. But, like you say, most items we own have a stated, or easily estimated, energy usage so some kind of logging would be useful. Our usage is 4x typical for a representative household so I'm guessing there is a single culprit using more than I'd imagine. In...

Sure, but if you need to measure your actual consumption to debug an unexpected behaviour, they are very useful.

I'm not sure I follow? The issue here is that I don't have (and can't have) a smart meter. So, I'm looking for alternatives. Apologies if I've misunderstood.

I'm not sure I'd go that far. The meters in our house were over 30 years old so probably due for replacement anyway. It's just a bit frustrating that they continue to roll them out in our town where (as it turns out) nobody can get connected. The Scottish network has been rolled out by a...

@Taylortwocities , the Shelly product looks very good. If I'm reading it right you get a small measurement/wifi device and a 120A sensor for £60 that connects to an app on your phone for live and historical data. Couple of questions (I have read the manual but the answers did not jump out at...

Yeah, I thought that but unfortunately ours is good for nowt (no radio function at all) unless it is commissioned (which is only possible when connected to the mesh radio network). So not IHD functionality at all. Good news is he'll be back in 90 days to try again. I asked what is likely to have...

We had our smart meters installed last week but, apparently, it will not be possible to connect them to the network so we'll be stuck with dumb meters after all. My main reason for agreeing to have them installed was that I'd have a handy tool to monitor our energy use (especially electricity)...

Hi, ta for responses. Pressure switch sounds interesting. Can you provide a link to an example of the type of switch you mean? I've not been able to find anything that seems appropriate. Thanks, iep

Hi Erikmark. That's a nice idea and there is a similar control flap on this system. Unfortunately it is spring return and so heavily 'damped' that it takes about 5 mins to close after the fan motor is deactivated. This would mean the heater running with no airflow for several minutes. Hi...

Hi, I'll try to add a bit more info on the overall problem. The ventilation system controller is built into the kitchen cooker hood extractor fan. This might seem a bit odd but is standard practice for this type of system (the cooker hood connects to the ventilation system outlet so needs...

It's an old husquvarna system in Sweden that I'm fixing up for a friend. Cheers, Iep

Hi, there are AC input solid state relays with built in rectification. Things like this: https://www.ebay.co.uk/p/577043315?iid=253061249422&trdt=0&rdtsrc=vi Obviously I'd be buying a new one. Just found this as a handy link. Fan does not start 230 and drop back. Comes up in 80v and stays...

It's a transformer with multiple taps and relays to switch them to S1. Cheers, iep

Hi, I have a heating element (750w) that forms part of the pre-heating stage of a house ventilation system (takes the edge off incoming cold air). The problem is that the switched supply (S1) that enables it (and the fan that forces the air) cannot handle the ~3 amps required to run the...