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bobflux
bobflux
5 hours ago  
5 hours ago
bobflux
Replied to the topic Daikin ESPAltherma and Home Assistant installation
It's laziness lol The PV system is very chatty, meter power is used to control loads like the EV charger, so it updates something like 10 times/s, plus all the other stuff. This is not stored in home assistant, it's stored in clickhouse like the rest of MQTT. I considered purging the clickhouse da...
Majordennisbloodnok
Majordennisbloodnok
6 hours ago  
6 hours ago
Majordennisbloodnok
Reacted to a post in the topic Problems with sizing a replacement for a Viessmann Vitocal 200-S
Majordennisbloodnok
Majordennisbloodnok
6 hours ago  
6 hours ago
Majordennisbloodnok
Replied to the topic Daikin ESPAltherma and Home Assistant installation
It’s well enough organised for what it’s designed to do, but sadly deeper analysis is not at the top of its priorities. The very reason I use MariaDB (or MySQL) is that it is a far better enterprise-grade architecture for querying from remote clients. However, data is my world and there is a lot to ...
cathodeRay
cathodeRay
6 hours ago  
6 hours ago
cathodeRay
Replied to the topic Problems with sizing a replacement for a Viessmann Vitocal 200-S
R (The R Project for Statistical Computing, I use it with R Studio) can do and plot confidence intervals for regression lines but I suspect they will end up looking like a cartoon blunderbuss given the data you have. R is not for the fainthearted, but it is extremely capable, and produces very high ...
cathodeRay
cathodeRay
7 hours ago  
7 hours ago
cathodeRay
Replied to the topic Daikin ESPAltherma and Home Assistant installation
Cripes! I gave up with the HA database (SQLite, no interest in migrating to something even more impenetrable), it was just too badly organised. Extracting data was a right royal PITA. It also has a habit of self-destructing if you touch it the wrong way. In fact I was able to ditch HA altogether,...
AdamK
7 hours ago  
7 hours ago
AdamK
Replied to the topic Vaillant Arotherm Plus 7KW need a service on it
booked it with Vaillant. will use them until i can find a cheaper alternative that keeps the warranty as £220 to take the covers off and clean it seems steep, my old boiler service was about £70, and they took the heat exchanger apart to clean it.
bobflux
bobflux
9 hours ago  
9 hours ago
bobflux
Replied to the topic Daikin ESPAltherma and Home Assistant installation
The issue with HA is tons of columns in the table. They do contain useful data, for example what automation flipped a switch, etc. It is a nice model for sensors that don't update too often. However, for stuff that updates often, it simply uses too much space. If possible, sensors should be config...
Bash
10 hours ago  
10 hours ago
Bash
Replied to the topic Question regarding Boiler Upgrade Scheme eligibility for ASHP with gas boiler replacement and existing A2A
We have electric underfloor heating in our reasonably large kitchen. Initially our surveyor calculated the heat loss of the kitchen and used the specifications of the electric underfloor heating to determine if it met the heat loss, which it did. However, once the design team took a look they im...
Majordennisbloodnok
Majordennisbloodnok
11 hours ago  
11 hours ago
Majordennisbloodnok
Replied to the topic Daikin ESPAltherma and Home Assistant installation
Something like this: recorder: purge_keep_days: 100 auto_purge: true # Default value, but good to be explicit commit_interval: 5 # How often data is written to disk (in seconds) exclude: domains: - updater - automation - script - update entities: ...
Bash
11 hours ago  
11 hours ago
Bash
Replied to the topic Daikin ESPAltherma and Home Assistant installation
@majordennisbloodnok Thanks, what would the auto_purge look like?
AdamK
11 hours ago  
11 hours ago
AdamK
Replied to the topic Vaillant Arotherm Plus 7KW need a service on it
me and the installer are about 60 miles from each other and they have washed there hands of the humming noise. said i need to get Vaillant to fix it, which is kinda correct as its emanating from the compressor into the house via the primaries, but i just think its goto be easier to find a local guy ...
JamesPa
JamesPa
11 hours ago  
11 hours ago
JamesPa
Replied to the topic Question regarding Boiler Upgrade Scheme eligibility for ASHP with gas boiler replacement and existing A2A
No. The regulations are here Regulation 9(2) b is the key one   As your robustly assessed heat loss is about 6kW, with the right installer (you may need to shop around) a 6kW or certainly a 7kW should be doable. The requirement is interpreted that the heat pump covers the loss at the...
Majordennisbloodnok
Majordennisbloodnok
11 hours ago  
11 hours ago
Majordennisbloodnok
Replied to the topic Daikin ESPAltherma and Home Assistant installation
That's right, and you'd probably want to have auto_purge as well.  
Bash
11 hours ago  
11 hours ago
Bash
Replied to the topic Daikin ESPAltherma and Home Assistant installation
@majordennisbloodnok Great! I am assuming I just need to add this into the configuration.yaml file? recorder:purge_keep_days: 100   I'll take a look at the OneDrive backup app, as that would be ideal.
Bash
12 hours ago  
12 hours ago
Bash
Replied to the topic Next steps on my ASHP journey: Radiators and Pipework
@jamespa   This was exactly what I did in the evening after getting the news that the we probably had too many radiators running off one 15mm run. I went through a process of elimination opening and closing each of the radiators to determine what ones ran off each other. It immediately...
Bash
12 hours ago  
12 hours ago
Bash
Replied to the topic Next steps on my ASHP journey: Radiators and Pipework
@rob-of-york These are all sensible pre install things to test. Certainly dropping the flow temp of the gas boiler down as low as you can go, maybe even 30-35c if possible, along with lowering the flow rate down should hopefully give you an indication of what might be ahead of you. When we ran ...
F1p
12 hours ago  
12 hours ago
F1p
Reacted to a post in the topic Daikin ESPAltherma and Home Assistant installation
Rob of York
12 hours ago  
12 hours ago
Rob of York
Created the topic Question regarding Boiler Upgrade Scheme eligibility for ASHP with gas boiler replacement and existing A2A in Air Source Heat Pumps (ASHPs)
I am looking to replace my gas boiler with an ASHP, although the journey will be a slow and cautious one. I've done heat loss calculations based on both a detailed theoretical model and detailed practical measurements, see this thread:/p> The conclusion is that the ASHP will need to provide 6kW ...
Majordennisbloodnok
Majordennisbloodnok
12 hours ago  
12 hours ago
Majordennisbloodnok
Replied to the topic Daikin ESPAltherma and Home Assistant installation
It's your App data that gives you an idea of the database size. 25Gb for the system is what is being taken up by the operating system and so is not going to appreciably increase from day to day. Given the Home Assistant installation is on top of that and you're only taking 26.4Gb in total, it looks ...
JamesPa
JamesPa
12 hours ago  
12 hours ago
JamesPa
Replied to the topic Next steps on my ASHP journey: Radiators and Pipework
You can selectively shut down radiators to test flow rates in individual lines or groups of lines. Obviously you wont expect to get the full flow rate you need for the whole output from the heat pump, but this should enable you to establish if you can get enough down each 'suspect' branch without e...
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