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Last seen: Dec 18, 2025
The system was installed as a 3 zone system with programable thermostats in each zone. The zones were set up by the installer to turn on and off with ...
I have now implemented the WC curve/line in HA that @TomC shared, but I'm not sure if the heat pump is running efficiently with this setup? I...
Unfortunately I don't really have any experience of trying to control the unit with minimal modbus. The only thing I used on Linux was mbpoll to initi...
Thanks very much Ian, I changed FSV 2091 to "Not Use" but it didn't have any effect. I then also changed FSV 2092 External Thermostat Application #2 (...
@iancalderbank I have come back to this a number of times but always thought I was doing something wrong. My system was initially set up to use Water ...
@kocta This is my configuration.yaml code which is very much based on the work of others here # Samsung Heat Pump Modbus Connection modbus: - name...
I came across this video which is an interesting example of heat pump control within Home Assistant
I have added the UI config and the YAML config of the script here. The main part is "modbus.write_register" and the payload associated with that. As...
@derek-m I only heat the water twice a day (at the moment it's to 50 degrees from 02-05:00 during the cheap night rate and to 42 degrees from 15:45-16...
@derek-m I am on a variable tariff so I'm turning heating and hot water off from 17-19:00 and upping the hot water set temperature from 2-5:00 I'm u...
I meant to credit Glyn Hudson for the hidden registers PDF which I found on his GitHub page
I had converted the Samsung Modbus MIM-B19N section on registers from PDF into Excel just to make it a bit easier to understand for myself. The sectio...
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RE: Renewables & Heat Pumps in the News
An article on funding for heat pumps in case anyone is ...
By Jeff , 2 hours ago
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RE: Indevolt Batteries UK Support & Info Thread
Thanks @editor , @indevolt-uk Subject to any comments ...
By JamesPa , 9 hours ago
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RE: Share Your Experiences with Heat Pump Manufacturer Support
@seoras Sorry to hear that. I found Vaillant very help...
By JamesPa , 10 hours ago
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The Watchdog That Watched and Waited
On 9 January 2026, Consumer Energy Solutions collapsed ...
By Mars , 13 hours ago
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RE: GSHP Kaput After 16 Years: New Compressor or Switch to ASHP? Advice Welcome
Cool Energy in Grimsby sell ground source heat pumps an...
By DerekDeLeon , 14 hours ago
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RE: Valliant Heat Pump Settings
Thats arguably a sign of a good installer - they unders...
By JamesPa , 15 hours ago
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RE: Electricity price predictions
Well, we have so many cases where rain water mixes with...
By Batpred , 16 hours ago
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RE: Two heating zones to one zone
@profzarkov They arent obviously wrong, but the only...
By JamesPa , 18 hours ago
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RE: Towns water feed to air source heat pump system
The DHW circuit cant be separated (well it could, you c...
By JamesPa , 18 hours ago
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Solis AC-coupled 3kW storage inverter
Solis AC-coupled 3kW storage inverterPylontech batterie...
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RE: My NIBE ASHP Nightmare: No Commissioning, High Bills and a Hostile Installer
As @transparent has observed above, this is not bad, an...
By cathodeRay , 1 day ago
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As I was reading this article Mars, I was thinking that...
By Toodles , 2 days ago
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RE: Tell us about your Solar (PV) setup
Installed in May 2011: 16*Sharp 245 W monocrystalline p...
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RE: Say hello and introduce yourself
That doesn't sound 'right' to me. The national Smart ...
By Transparent , 3 days ago
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RE: Growatt battery disconnected
I doubt this will happen, but I will try and suggest it...
By Eliuccio , 3 days ago
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Understood. That's why I decided from the outset on a ...
By JamesPa , 4 days ago
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RE: My experience with 3 heat pump surveys: Heat Geek, British Gas & Octopus
On the litigation, I would not go there and definitely ...
By Batpred , 4 days ago
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RE: Recommended home battery inverters + regulatory matters - help requested
I suppose if your pv inverter packs up, you have a plan...
By Batpred , 4 days ago
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RE: New Vaillant aroTherm Plus in black - When will it come to the UK?
Firstly check you are using sound power not sound press...
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That’s the solar up and running, I don’t think it’s the...
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RE: Seeking ideas / information / commiseration - Pure Drive
I agree with @colinc that you can reuse some of it. A s...
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RE: Solar Power Output – Let’s Compare Generation Figures
@toodles Im trying me best to ignore orangeman, I figur...
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