Daikin COP / energy used measurement from MMI
@crasher sorry, I missed your message.
I haven’t found a fix for this. I mentioned it to Octopus and a Daikin engineer when they visited and they were not very interested, stating that it was only approximate anyway.
So I setup ESPAltherma and have had it running for 3 months with Home Assistant:
https://raomin.github.io/ESPAltherma/
It is excellent and provides great insight into what your Daikin is doing.
@hcas I’ve got the Daikin integration for Home Assistant; it seems to show the same (bad) electricity data as the MMI 😔
@squarepeg77 Thanks for the reply. I never got an answer either but it just resolved itself, checked it a few days after posting here and all was good again I had readings back! I don't believe it to be 100% accurate but it gives a guide to how the unit performs. I've found the same with Daikin, they never seem overly interested in providing any help
@squarepeg77 Hi! Is it your ESPAltherma that is connected to Home Assistant? Or are you using the Onecta API for the Home Assistant?
And the ESPAltherma gives you the same wrong readings as the Onecta app and MMI?
Have you set up any home automation or smart steering of your heat pump?
CEO and co-founder at HavenWise
Both ESPAltherma and Daikin integration connect to Home Assistant.
The Daikin integration exposes sensors that match the ONECTA app or MMI; so for me that means incorrect electricity consumption.
ESPaltherma is much lower level, but the electricity (voltage and current) sensors are considered inaccurate, so people seem to be using external monitoring. I’ve got a CT clamp around the heat pump feed that goes back to an Eddi, then I collect the data in HA.
If you want to get going with ESPAltherma, there’s an excellent guide here:
And yes, I am running a software thermostat in Home Assistant as the Madoka is too “quirky” for my liking.
-
Warm weather and heat pumps.
4 months ago
-
Oversized Daikin 9kw
4 months ago
-
Daikin Octopus installation update - I saw my first defrost. 😍😂
7 months ago
-
Daikin Error Code 7H05
9 months ago
-
British Gas versus Octopus: Two possible heat pump routes - how to evaluate them?
11 months ago
- 26 Forums
- 2,136 Topics
- 46.8 K Posts
- 26 Online
- 5,662 Members
Join Us!
Podcast Picks
Latest Posts
-
RE: Rodents! A word of warning for heat pump owners
@tim441 Or as they didn’t quite say in the space travel...
By Toodles , 1 hour ago
-
RE: Mitsu Wireless Controller and MelCloud
Update: I have found that the contractor had changed on...
By DavidAlgarve , 13 hours ago
-
RE: Air source heat pump roll call – what heat pump brand and model do you have?
@editor Hi Mars, We have just installed a Grant Aerona...
By GrahamF , 13 hours ago
-
RE: Sanity check please. Battery storage and inverter sizing.
There are MCS guidelines about how close to the edge/ri...
By Old_Scientist , 16 hours ago
-
RE: Balancing financial efficiency and comfort using the Octopus Cosy tariff
I estimated our usage on the following basis. The mos...
By Old_Scientist , 18 hours ago
-
RE: Why so many sigenergi installer recommendations?
It’s a really simple answer, GivEnergy. Installers ...
By SAEnergy , 22 hours ago
-
@editor Something changed in this last 12 months, they ...
By ASHP-BOBBA , 2 days ago
-
RE: Ecodan & MelCloud scheduling
I put the above question to Mitsu UK at the sme time as...
By DavidAlgarve , 2 days ago
-
Thanks for the heat geek info. I've fitted my own heat ...
By bontwoody , 3 days ago
-
RE: Does anyone have experience of a smart water meter?
Just to give a sense of scale, I've used the CCW water ...
By Majordennisbloodnok , 3 days ago
-
RE: Powerwall 3 or Myenergi or something else?
We have a Tesla Powerwall 3, recently installed, so I m...
By Old_Scientist , 4 days ago
-
RE: Mitsubishi PAR-WT60R-E Wireless Controller installation
@morgan They have been paired once but it was thought b...
By DavidAlgarve , 5 days ago
-
RE: Isolating the system for a planned power cut
A great many ground-mounted local substation transforme...
By Transparent , 5 days ago
-
RE: Heat Pump Servicing & Maintenance – Good Value or Rip-Off?
Having bit the bullet and paid £250 for a service, our ...
By Old_Scientist , 6 days ago
-
New heat pump heating system underperforming in Italy... Advice needed!
hi all, first post! I've just renovated a house in sout...
By robinlawrie , 6 days ago
-
RE: Anyone still weathering it out with Agile?
I went to Agile when I had solar installed July last ye...
By NJT , 7 days ago
-
RE: Say hello and introduce yourself
Whilst you're busy installing services (pipes and wires...
By Transparent , 1 week ago
-
RE: New Vaillant aroTherm Plus in black - When will it come to the UK?
@editor I know it was formally announced at Ish the oth...
By PatrickVito , 1 week ago
-
@moman0311 welcome to the forums. I've received your em...
By Mars , 1 week ago
-
RE: Thermostat for Ideal Logic Air with 3 zone support
No harm at all in plumbing it as 3 zones, I would have ...
By JamesPa , 1 week ago