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...
Latest Posts
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RE: Hitachi Yutaki SCombi Heat Pump - Thermal Off's
The trouble is that I do not know enough about how heat...
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RE: Solar Power Output – Let’s Compare Generation Figures
I have three CT monitors on my solar output via the mi...
By IanMK13 , 2 hours ago
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RE: Performance of Heat Pumps in Mild Weather
Agree with the above. Without knowing what the modulati...
By Old_Scientist , 3 hours ago
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RE: Who's your electricity provider and what's your tariff?
@agentgeorge Not with Eon Next. The only reson I left O...
By Andris , 5 hours ago
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RE: Help me keep the faith with my air source heat pump installation
I apologise if this has been covered already but have y...
By JamesPa , 6 hours ago
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RE: How hard and expensive would it be to change panel and add battery?
The difficulty with this discussion is that it's referr...
By Transparent , 6 hours ago
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@rhh2348 it’s clear you are wanting to run your heat pu...
By SUNandAIR , 6 hours ago
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Is this normal? Click of the DHW returning to space heating
This has been bugging me for a while and I just wanted ...
By Grantmethestrength , 1 day ago
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@sandman1600 you need to measure whats going on real...
By davidnolan22 , 2 days ago
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@brandon-r is this a project that you could assist with...
By Mars , 2 days ago
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Has anyone installed these on their ASHP fed radiator s...
By Grantmethestrength , 3 days ago
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Just an update on the responses received by Smart Heati...
By Eliuccio , 3 days ago
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RE: Is your gut better than Math
By SUNandAIR , 3 days ago
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RE: Would You Find Value in a Premium Installer-Supported Forum?
We are very pleased to announce that Brendon Uys (@heac...
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RE: Ecodan 11.2kw Wireless thermostat drop outs
@skyecraig I've had our FTC7 wireless thermostat lose...
By RobS , 4 days ago
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RE: Signenergy AI Mode - How long does it take to learn a usage pattern?
I am definitely interested in this as I am considering ...
By Grantmethestrength , 4 days ago
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RE: Air source heat pump roll call – what heat pump brand and model do you have?
Hitachi Yutaki SCombi Heat Pump(Indoor Unit ) RWD-3.0RW...
By trebor12345 , 4 days ago
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RE: Jokes and fun posts about heat pumps and renewables
ми не граємо в карти
By Transparent , 4 days ago
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RE: Pressure Drop in primary circuit
Nick from Samsung has called me back . He has sa...
By ohdearism , 4 days ago
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RE: Vaillant water pressure gauge vs Analogue gauge
@adamk not sure I want to mess with the lockshields I a...
By jeegnesh , 4 days ago
