Heatpump with Ethernet

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nztim

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#277329 8-Oct-2020 09:57

Hi, I am looking at replacing my old inefficient heatpump with something more modern, I like a lot of geeks on here want everything to be wired into Ethernet.

All the smart heat pumps Ive seen are wireless only, does anyone know of any out there that are Ethernet as opposed to wireless?

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phrozenpenguin

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#2581092 8-Oct-2020 10:15

I'm not aware of anything consumer level that is ethernet. We have the Daiken wifi one and it has been rock solid for three years, and all our daily timers and automations are done via Home Assistant and wifi - so we would know if it was having difficulties. We do have decent Ubiquiti wifi. I use ethernet when I can e.g. desktop etc, but the heatpump hasn't been an issue.

Senecio

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#2581095 8-Oct-2020 10:16

Same here. I've been using a Daikin wireless adapter without any issues. It just works.

dukester

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#2581097 8-Oct-2020 10:20

I think you will find wifi would be a far easier option and more simple to setup. Heat pumps only require a brief command to change a a setting so there data requirements are almost nothing. If your heat pump doesn't have wifi built in I can recommend the Sensibo unit. It has worked flawlessly on my older heat pump. Even works with Alexa and I can turn the heat pump on when away from home. You do need a power plug near by to plug the sensibo power supply into.

nztim

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#2581099 8-Oct-2020 10:23

dukester:

I think you will find wifi would be a far easier option and more simple to setup. Heat pumps only require a brief command to change a a setting so there data requirements are almost nothing. If your heat pump doesn't have wifi built in I can recommend the Sensibo unit. It has worked flawlessly on my older heat pump. Even works with Alexa and I can turn the heat pump on when away from home. You do need a power plug near by to plug the sensibo power supply into.

The old heatpump needs to go so looking at options for new one

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neb

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#2581334 8-Oct-2020 14:15

The cheapest/easiest way to do it is to get any one of a million WiFi -> IR controllers and use that, cheaper than the manufacturer's expensive add-on option and works just as well.

phrozenpenguin

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#2581409 8-Oct-2020 15:02

neb: The cheapest/easiest way to do it is to get any one of a million WiFi -> IR controllers and use that, cheaper than the manufacturer's expensive add-on option and works just as well.

The OP didn't ask for cheapest / easiest though! I bought a manufacturer add on because it doesn't need me to find additional power, additional space to put another device - it is installed internally. It also allows me to query the device and find what the current settings are, so it can be controlled by different devices but integrations from home automation all work. The IR controllers are a cheap method that works for some people, but if (like the OP) you would prefer wired over wireless, you probably don't want a wifi - IR adaptor in the mix! They don't have the full capability of a manufacturers device, and they are not as clean an install either.

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01EG

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#2581596 8-Oct-2020 21:04

Try Sensibo or Ambi Climate, they are working with almost all modern heatpumps, I have both for my Daikin heatpumps.

dasimpsonsrule

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#2581649 8-Oct-2020 21:41

Intesisbox do ethernet gateways (bacnet ip and modbus tcp) for various heat pump brands. This is the sort of thing we use for commercial building automation systems.

You can also do rs485 (bacnet mstp or modbus) to the unit, then back to ethernet via a gateway.

None of these options are cheap though, for domestic use wifi is definitely the way to go.

For mitsi units there is protocol information out there on github etc. if you are keen on diying a solution.

catdog

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#2581894 9-Oct-2020 13:37

dasimpsonsrule:

For mitsi units there is protocol information out there on github etc. if you are keen on diying a solution.

I recently went through this DYI solution with the Misti heat pump that was in the house I bought. It was surprisingly easy and cheap (the most difficult part was waiting for the connector to arrive from the UK), and works really well over WIFI. I'm sure you could find an alternate Arduino device if you really want a physical ethernet port.

https://nicegear.nz/blog/hacking-a-mitsubishi-heat-pump-air-conditioner/

https://github.com/SwiCago/HeatPump

https://github.com/gysmo38/mitsubishi2MQTT

Paul1977

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#2581932 9-Oct-2020 14:29

I always prefer ethernet over wifi if possible as well, but I doubt you'll find an easy "out of the box" solution for a heat pump. As long as your wifi is stable, the better latency and speed offered by ethernet would make no noticeable difference for controlling a heat pump.

Just make sure your new heat pump comes with a wifi module and you'll be fine.