@cathoderay very clear and consise explanation. Too much time spent on zones and valves while this takes care of most events

it is easy to panic when you get a run of extra high usage days but I split my months into average daily usage which very quickly allows me to put the anxiety back into the box where it belongs. In addition I have given up trying to work out cops etc and I now just watch my smart meter and givenergy app. I know what my phantom load is and can therefore monitor to the minute what is being spent and what I get for it

@cathoderay very clear and consise explanation. Too much time spent on zones and valves while this takes care of most events

it is easy to panic when you get a run of extra high usage days but I split my months into average daily usage which very quickly allows me to put the anxiety back into the box where it belongs. In addition I have given up trying to work out cops etc and I now just watch my smart meter and givenergy app. I know what my phantom load is and can therefore monitor to the minute what is being spent and what I get for it

Morning all, moving to a new-build home in 2 weeks with ashp for heating and hot water.  I've looked at quite a few videos and read much of these forums so hopefully I have a good start on the alternative heating journey.  Will add PV & battery(ies) in the future.  Have previously had an EV but now running a dirty diesel but may well go back to an EV in a couple of years.

@dpc, how exciting. Please feel free to start a new topic dedicated to your heat pump and system and share your experience.

Hi folks, I'm just in the middle of retrofitting a 1930s home in Cambridge, adding lots of insulation (EWI and under the suspended wooden floor), improving the airtightness, MVHR, UFH, triple glazing, PV and an ASHP.  Currently hunting around trying to work out what controls I want for my house ASHP (tempted to just go with the Samsung controls and keep it as simple as possible!) and came across this forum, so thought I'd join in. An engineer by training, I work for a machine learning company. I'm hoping to join the discussion so I can optimise the Samsung 8kw ASHP I've got a quote for. Look forward to joining in!

Regards,

cswd

@cswd .... another engineer! Great - and welcome to the party 🍾 

Just noting your employment role and the time-stamp on your post... what's the quality like for code written that late at night? 😉 

You should definitely head over to the topic Connecting Home Assistant to Midea Heat Pump.
Despite the title, this very quickly moves away from using HA, and is instead an active discussion on a new approach to ASHP control and monitoring.

Posted by: @transparent

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Just noting your employment role and the time-stamp on your post... what's the quality like for code written that late at night?

Don't worry, my code's reasonably dodgy any time of day!  I'm not a software engineer - a manufacturing engineer - materials, manufacturing processes, materials selection, additive manufacturing, all that sort of thing. Unfortunately at that time of night I'm often found answering obscure questions from the builder / plumber / electrician doing our retrofit, trying to work out the best way to set up and control an ASHP, designing the cupboards the chippy is going to make, checking lighting diagrams, answering inane questions from our architect etc etc.  For the ASHP we're going with one of these: https://midsummerwholesale.co.uk/buy/samsung-heat-pumps/samsung-stealth-8-heat-pump
I'm afraid that link on Connect a Home Assistant to a Midea Heat Pump is well beyond my coding & hardware skills!

Given I'm in the software industry (selling machine learning software for materials design), I'm aware of how quick stuff goes out of date and/or stops being supported (ever had a computer last more than 10 years?), whereas I want my heating controls to last 15-20 years, so I'm looking for self-sufficiency from ASHP controls (either doesn't connect to the net or at least can work almost as well if not connected to the net). Not sure whether I'll be able to find it.

Having said that, if I can get at the raw ASHP data, then I might throw some Machine Learning at it to see how I can optimise it. I've signed up to a research project who are going to fit flow meters to the ASHP & DHW tank and track heat usage for two years, so hopefully that'll be useful.

Cheers,

cswd

Good day,

living in the region of Hannover, found this forum searching for midea heatpumps, because bought a midea clone named Kaisai KHC08 from DK in last summer after long time reading in the net. German forums recommend panasonic heatpumps for self installation, but last year not to get quickly and workman too. Also we had a nice price for gas untill the end of the year. So the installation was selfmade and in february it was time to let the pump do their job. Now here are some experiences, which I like to exchange and I´m interestet to collect some more data from the machine. Also I´m interested to change the controlling a little bit.

Long time before I learnt electrician and in the early 70s studied industrial automation, reading technical english in that time, hope my english is not to poor.

Hello @gorm and welcome to this forum.

I suggest that you first read the topic Connecting Home Assistant to Midea Heat Pump, being written by @cathoderay

In that topic, he has already discussed why the Home Assistant software is not suitable.
And he is now writing code to input data from the energy meter.

Thanks for the information, I´m reading here some month and know this thread. HA is unknown for me, but I got a mini pc for collecting data and more. About the energie meter I will answer in the linked thread.

Posted by: @cswd

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I'm afraid that link on Connect a Home Assistant to a Midea Heat Pump is well beyond my coding & hardware skills!

It's actually a work in progress type thread, which will ultimately be boiled down to a Beginner's Guide to Heat Pump Monitoring v2 (v1 ended up as Home Alone with Home Assistant). As the name suggests, will be aimed at beginners (by which I mean interested lay folk who are DIY screwdriver level competent and who don't mind learning a few coding basics, with the emphasis on basics).

Posted by: @gorm

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I got a mini pc for collecting data

This is the route I went down. At this very moment I have my earlier Home Alone with Home Assistant setup (uses a painfully complicated wifi/LAN setup to get partial data) and a new basic python plus wired modbus connection running alongside each other, and it is very clear, at least to me, that the latter setup is easier to set up, capable of getting more data, and is more reliable. I may continue to run HA, to make use of some of its mostly third party additions that are useful, but the modbus setup doesn't need HA, the data ends up in csv files that can be viewed and worked on in any spreadsheet.