Any old emontxV3 no longer in use?

Hardware emonTx
1

I am trying to do simple monitoring of badly set-up Eco4 heat pumps. Trying to do on a shoestring, and only CT and temperatures. An old emontxV3 would do the trick. Any second hand ones about? Just seeing input power and flow/return temperatures can tell a great deal about the systems health

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2

“Shoestring” often costs more than just doing it right. I keep learning this. In one of my efforts I designed a low cost energy meter USD$15. It is a serious DIY project not for the feint of heart. Along those lines you could get an ESP-01 with a power supply and temperature sensor for about USD$10 and wrap the sensor to lines. If you go this way, be sure to read the caveats!

3

Indeed, shoestring can take a great deal of time, and it depends how that is valued. Sometimes, things need monitoring, and there are no funds exactly. Anyhow, I have managed to get some old bits re-purposed with the help of Trystan & Glyn

4

Great! I hope it all works out for you.

OSD

5

John, are you still looking for a redundant V3? I have one if you are interested. If so, reply and PM me.

Simon

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6

Thanks Simon. I think I have enough now. Trystan & Glyn kindly had some suspect ones (no RF etc).
There are many new Eco4 ASHPs going in, and some elderly/low icome people have them. I am trying to fit simple (4 temperaure and one CT) for free for them. A lot can be gleaned about how to set the system. Its throwing up badly pipes buffer tanks and various things, so worth doing. It satifies my curiosity too.

7

Well there’s one here if you run through your supply from Trystan and Glyn.

Simon

8

Simon, have you still got any old OEM hardware? I am hoping to monitor the local food hub, and no funding for it. That said, happy to pay something . Emontx v3, EmonTH would all be useful.

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Hi John, I’ll dig it out. If you PM me your address, I’ll post it to you.

Simon

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10

That’s excellent, many thanks.