Last seen: Apr 7, 2025
@gc61 Less that one start per hour is very good, our pump can manage that when its cold, but it cant modulate down low enough in Spring and Autumn, ev...
@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: Forum updates, announcements & issues
@editor Fairy Nuff Mars, I doubt that my ramblings woul...
By Toodles , 5 minutes ago
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@johnnyb very much in tune with the thoughts above and...
By JamesPa , 7 minutes ago
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RE: Antifreeze top up for my heat pump - is this a rip off?
@johnmo You are correct, standard Ethylene glycol used ...
By Brendon Uys , 1 hour ago
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RE: Getting the best out of a heat pump - is Homely a possible answer?
@johnnyb I have had several discussions with Homely abo...
By Toodles , 3 hours ago
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RE: Confusion about heat pump sizing
We’ve published a deep dive into heat pump sizing, and ...
By Mars , 6 hours ago
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We’ve published a deep dive into heat pump sizing, and ...
By Mars , 6 hours ago
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RE: Kensa GSHP finally installed - now to start the optimisation process
Just had a quick scan of the manual and should be weath...
By Johnmo , 19 hours ago
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RE: Potentially more choice including air to air heat pump grants
Hi all, I agree, the consultation documents are alway...
By madbilly , 19 hours ago
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RE: Commencing on an ASHP Installation Process
I think those are pretty much the standard figures that...
By JamesPa , 1 day ago
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RE: Load Compensation and Weather Compensation
I think that maybe what the adia thermal system does, b...
By JamesPa , 1 day ago
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RE: Enabling WiFi: Samsung ASHP on Smart Things App
@old_scientist @profzarkov thanks to you both for the v...
By Grahamh-uk , 1 day ago
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RE: Nibe F2040 periodic warm water increase fails
@tribol here's an official reply from NIBE on your case...
By Mars , 1 day ago
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RE: Vaillant & OVO partner up to offer Heat Pump Plus
@ecodan-efficiency On the other hand, the fact that the...
By Richard24738 , 2 days ago
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RE: How accurate was your heat loss survey?
@scalextrix for our house 1950s detached the air leakag...
By Judith , 2 days ago
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RE: Air Changes per Hour - ACH and the MCS requirement
@matwin If you plan to commission one it might b...
By JamesPa , 3 days ago
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RE: Jokes and fun posts about heat pumps and renewables
In a similar vein, this recent spell of sustained good ...
By Majordennisbloodnok , 3 days ago
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RE: Home energy storage & battery register
By the end of next month... 8 kW PV + Tesla Powerwall...
By Algienon , 3 days ago
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RE: Various different approaches to battery storage.
I thought I'd share my story/journey and experiences he...
By Old_Scientist , 3 days ago