Last seen: Feb 3, 2026
@transparent Thanks for the info, i will try to get EDF to escalate to the DCC, if that doesn't work i will have to wait for the new WiFi system to go...
@tim441 Re the silent mode, It made me think have a missed something, but i have looked it up, on the Viessmann all the silent mode does is restrict t...
Does anybody have any figures re the efficiency of heat pumps when under different loads? A car engine ticking over is more efficient than one runni...
@jamespa It depends on what "bad" cycling is. In spring it would run for a total of 4 hours in the 9 hour period that i had it set for, it would cycle...
Our heat pump is oversized by a factor of 2. It is capable of 10Kw at temperature of -5, the most we have used in one day in the last 2 and a half yea...
We have a 10Kw Viessmann 200A it SCOP is currently 5.2, this has increased over the last 12 months from 4.7 by tuning the system to our property. The ...
@cathoderay Re the 1.18 correction figure. I have a completely different pump (Viessmann) and have a well insulated property with underfloor throug...
With reference to the now christened Vampire load, on my Viessmann i have one meter monitoring all the energy to the entire heating system, the other ...
I am new to the forum, but have been following this topic closely, as I am sure are many other heat pump owners. To quote Sherlock Holmes - When yo...
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RE: Daikin Altherma 3 LT compressor longevity question
@bobflux With my limited HA skills I can't ad...
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Hi all I'm having some trouble with a Grant ASHP and ...
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You are absolutely correct that the capacity table MUST...
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RE: Heat Pump vs New Gas Boiler for Inherited House - Worth the Extra Cost?
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RE: Tell us about your Solar (PV) setup
@mk4 Charge to 100%, discharge down to 10%.
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RE: Connecting Growatt SPH5000 over wired ethernet rather than wireless
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RE: Electricity price predictions
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RE: Jokes and fun posts about heat pumps and renewables
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What matters for flow and pressure drop is internal dia...
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RE: Do Fridges and Freezers have COP ratings?
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I know and yes. The secondary deltaT wont necessaril...
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Just love the way you put it! 🤣
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O-oh! Let's take this as an opportunity to 'pass the ...
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