SMART IoT GEYSER

[jaco.slabbert]

I builded a Smart Geyser controller using an ESP32 and 50 Amp Solid State Relay. It uses Cayenne IOT Cloud and you can schedule timers and monitor the use of hot water. I am already saving Money. All code and instructions available at https://www.instructables.com/Cayenne-IoT-Geyser/

 

[TedLasso]

Good job!

 

[Rick Sanchez]

Awesome, thank you!

 

[richjdavies]

There's another thread here about the issues around using solid state relays for geysers. Be careful it doesnt overheat.

 

[Rick Sanchez]

Got a list of links for the parts? Thank you.

 

[Rick Sanchez]

There's another thread here about the issues around using solid state relays for geysers. Be careful it doesnt overheat.

Oh wow, got a link to the thread?

 

[richjdavies]

Remotely turn the Geyser on and off

Right now I have a Sonof POW R2 connected to the geyser, works like a charm. The problem, this is a 100L 2kW geyser so it works fine with the 15A sonof. I am now upgrading to a 200L 3kW geyser which I think will be too much for the 15A sonof So my question, is there any other solution that...

mybroadband.co.za

 

[Rick Sanchez]

Remotely turn the Geyser on and off

Right now I have a Sonof POW R2 connected to the geyser, works like a charm. The problem, this is a 100L 2kW geyser so it works fine with the 15A sonof. I am now upgrading to a 200L 3kW geyser which I think will be too much for the 15A sonof So my question, is there any other solution that...

mybroadband.co.za

Thank you

 

[richjdavies]

A sonoff is an esp8266 with a smaller relay built in... So not crazy different

 

[Thor]

I builded a Smart Geyser controller using an ESP32 and 50 Amp Solid State Relay. It uses Cayenne IOT Cloud and you can schedule timers and monitor the use of hot water. I am already saving Money. All code and instructions available at https://www.instructables.com/Cayenne-IoT-Geyser/
View attachment 968992View attachment 968994

Very neat, how much do that solid state relay cost?

Are you able to measure the power consumption in that configuration?

 

[krieg]

Why are the wires on the input side of the relay so thin compared to the output?

 

[Thor]

Why are the wires on the input side of the relay so thin compared to the output?

That is just to switch it on. So 5/12V

The other side is the Live wire to the Geyser

(unlike the sonoff this isn't In-Line)

 

[furpile]

I am already saving Money.

How do you know?

 

[krieg]

That is just to switch it on. So 5/12V

The other side is the Live wire to the Geyser

(unlike the sonoff this isn't In-Line)

Would be interesting to see to the left of the picture as it looks the incoming power goes off to that side.

 

[jaco.slabbert]

There's another thread here about the issues around using solid state relays for geysers. Be careful it doesnt overheat.

That is way I use that large heatsink.

 

[jaco.slabbert]

Why are the wires on the input side of the relay so thin compared to the output?

That is just for the signal. 3.3 volt, close to zero amp. That is how solid state relays work. It is obviously single pole.

 

[jaco.slabbert]

Got a list of links for the parts? Thank you.

 

[jaco.slabbert]

There's another thread here about the issues around using solid state relays for geysers. Be careful it doesnt overheat.

Very neat, how much do that solid state relay cost?

Are you able to measure the power consumption in that configuration?

+-. The geyser is on or off. Size of eliment x hours on.

 

[jaco.slabbert]

All from robotics.org.za

 

[DougK]

I built this Geyser controller which interfaces into Home Assistant. Works well. https://www.instructables.com/Smart-Data-Logging-Geyser-Controller-for-the-Home/