Smart switch for immersion

TheSunIsShining

https://www.boards.ie/discussion/comment/122641674#Comment_122641674

I paid 37 sterling for it from Amazon UK about 2 months ago. Don't forget, as per the posts above, that you'll need a junction box for it.

SchrodingersCat

funnily enough, it is still around 40 quid on aliexpress.
Still, for a high current smart switch for an immersion, they are cheap.

TheSunIsShining

https://www.boards.ie/discussion/comment/122642735#Comment_122642735

I'm using it here to take in 90 minutes of cheap electricity from the EV rate. The size of the terminals and the 25A rating are reassuring to do that....

whizbang

How accurate is internet based switching.. is it good enough for your systems..?

My experience of switching lighting is poor. I have 5 x Sonoff switches and I find 1 of 5 times it misses on times completely. Its actually a bonus as it adds a whole level of randomness to lights as a security feature, but i wouldnt use it for more precise applications.

phog

https://www.boards.ie/discussion/comment/121779500#Comment_121779500

I have that one and have failed (numerous times) to connect it to the WiFi. At this stage it's thrown on a box of electrical components for the recycling skip.

This is it

https://www.boards.ie/discussion/comment/122647989#Comment_122647989

I've four Sonoff, three for lights and one for heating, all timed. It would be rare they don't switch when they're supposed to. It's hard to quantify exactly but I'd estimate one or two switches per month, so one or two per 240 switches approximately.

10-10-20

https://www.boards.ie/discussion/comment/122647989#Comment_122647989

https://www.boards.ie/discussion/comment/122648398#Comment_122648398

Are we talking about cloud based control here or local timers on the devices?

Cloud control - those which depend on an app linked to a server outside of the home - have many more points of failure than local timers. Be it the servers that they are running on, the internet connection at any point in that path, inbuild obsolescence of cloud-connected hardware, or just yearly contract changes. I'm not a fan of that method of control for any of those reasons, as well as far more.

Local control based on a schedule saved on the device are fare more reliable over the long run, and it also eliminates many of the troubleshooting dark areas when a fault occurs, except that you don't get the remote control-ability of the cloud.

Of the smart controllers that I know of, both Sonoff and Shelly have inbuilt schedules. I have a Sonoff working to control a kitchen fan (based on humidity) for the last 4 years and I can say that it hasn't failed even one time.

So just be aware of the difference between local and cloud as there is a fair chunk of difference.

SchrodingersCat

If anyone is looking to get the Sonoff POWR3, the following enclosure fits it nice and snug:

https://www.amazon.co.uk/dp/B07VVQN1Y3?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1