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Availability of Vaillant heat pumps
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12
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272
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13 October 2026
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Vaillant Arotherm: excessive noise from compressor
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193
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7952
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13 October 2026
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Vaillant Arotherm+ V1 vs V2
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13
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468
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11 October 2026
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New Vaillant Arotherm+ V2 RS485
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1
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123
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6 October 2026
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Vaillant aroTHERM plus 8.1 – UK skirt / compatible feet availability?
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5
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166
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2 October 2026
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Vaillant AroThem Plus DHW overshoot
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2
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166
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5 August 2026
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Vaillant eBUS hardware adapter (ebusd software) Thread
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540
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35247
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29 July 2026
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Why doesn't a low flow temp translate into a decent COP
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65
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1839
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3 May 2026
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R290 tweaker-friendly heat pumps in the middle price category. What to choose for 7kW load UFH house? Why are certain nations users choose differently? Vaillant, Samsung, LG, Panasonic
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8
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439
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28 April 2026
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Installers and Open Energy Monitoring
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9
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364
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25 April 2026
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Vaillant AroTherm Plus 12kw - high-pitched whirring noise at lowest modulation (25%)
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3
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136
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4 April 2026
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COP expectations for 7kW vaillant
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7
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298
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20 February 2026
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Performance figures after removing buffer tank?
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23
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716
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13 February 2026
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Noisy central heating since Vaillant aroTHERM plus 7 installation
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6
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453
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8 February 2026
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Legionella flow temp at 78C heating water to 72C
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8
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314
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30 January 2026
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The Valliant 3.5kW DHW heating cycle seems better than the 5kW Eco Cycle
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1
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173
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28 January 2026
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Vaillant Arotherm hmu_setmode_flowtemp_desired keeps increasing, ignoring HC1_actual_flowtemp_desired_value
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10
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272
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14 January 2026
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Short cycling, third party thermostat help
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4
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241
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10 January 2026
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Defrost hell
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46
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2274
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23 December 2025
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Integrating MyVaillant app with EmonCMS
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7
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796
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19 December 2025
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Vaillant maximum output capacity testing
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170
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7288
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1 December 2025
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Vaillant Arotherm Interface wiring help required
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5
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582
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1 November 2025
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Trying to understand Start/Stop conditions of my (vallaint) heat pump
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0
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103
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29 October 2025
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Help! No heat from Vaillant Arotherm+
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18
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1459
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11 October 2025
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Advice on OEM Level 3 Heat Pump Monitoring for Vaillant aroTHERM Split Plus
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2
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180
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12 September 2025
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Short Cycling every 10 mins @ 11C, Arotherm x 2 12Kw Cascading
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1
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112
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10 April 2025
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Diagnosing Arotherm+ 5 & Radiators in Scotland
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52
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701
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12 February 2025
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Valliant Arotherm Plus ~ Saunier Duval Genia Air Max
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0
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84
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11 February 2025
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Vaillant Arotherm Plus 7kW never low and slow
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38
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2236
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23 January 2025
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My Vaillant app - reported outside temp
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24
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1993
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1 December 2024
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