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Last seen: Apr 29, 2025
Frenchmen, Germans and Blushing Heat Pump "Engineers!" Over the past two years, visiting "Engineers" have produced the most extraordinary comments...
Heat Pumps: Hypothermia & Bankruptcy Having spent ~£14k on a Heat Pump I am now , a 76 year old , Am I Now faced with Heat Pump Hypothermia ?: ...
Is my Heat Pump Too SMALL for Winter AND TOO BIG for Spring? My Heat Pump does Not supply ENOUGH Power HEAT DURING Winter . -- Attachment is not ...
Measuring Cycle and Run Times on a Heat Pump I record the Power Consumed by my Heat Pump on a Daily basis. For example , on 30 th March I get:...
My Heat pump REAL COP ( that measured at the start of the Radiator pipe circuit ) and Heat Pump COP ( as shown by the Heat Pump itself ) are for 28/29...
Design & Measurements of Heat Pump Performance? Wall Thermal Conductivity, U ...............abuse ? Given my own experience, where my "instal...
@editor Why can't Heat Pumps be Mathematically DESIGNED and tested using a program like H2X ?? Buffers as Batteries? With the introduction of Ti...
@editor All Modern Heat Pumps use an Inverter to control Heat Pump Water Power. All modern Heat Pumps have a Minimum Power BELOW which the HEAT PU...
@editor All Modern Heat Pumps will Cycle when operating BELOW the Minimum Inverter Power . Here is a detailed graph of the Power my Heat P...
@editor Heat Pumps ............Short Cycling Older Heat Pumps 1) In all older Heat Pumps the Power was controlled and regulated by binary sta...
@editor To Buffer or Not ? The following jpeg is taken from Kensa: The Docx is given from Kensa : An extract from Kensa : What’s the...
@Mars COP & REAL COP My Samsung Advertises it's Coefficient of Performance, COP on the "Energy Consumption" and "Energy Generated" Displa...
Latest Posts
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RE: Anyone concerned about GivEnergy?
Yes and no. Native controllers generally do a good jo...
By Majordennisbloodnok , 8 hours ago
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RE: A2A vs A2W: Which Heat Pump Would You Pick?
@temperature_gradient I've had air-to-air for just over...
By Anne Smith , 13 hours ago
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RE: Home automation and the cloud; is there a better way?
+1 It's not just cloud though. Many devices have repla...
By bobflux , 13 hours ago
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RE: End-of-Life Heat Pumps: How Do You Dispose of an ASHP in the UK?
We've started to document everything, and part 2 of the...
By Mars , 19 hours ago
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RE: Summer usage. Why is my Vaillant Aerotherm using so much energy on "heating"?
So the red bars are 'DHW' and the yellow bars 'heating'...
By JamesPa , 20 hours ago
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Its good kit the Midea and significantly cheaper, you w...
By ASHP-BOBBA , 23 hours ago
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RE: Indevolt Batteries UK Support & Info Thread
Have you tried cutting the grid feed to see what actual...
By JamesPa , 23 hours ago
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Contractors pack for inta antifreeze valves are around ...
By ASHP-BOBBA , 23 hours ago
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RE: Renewables & Heat Pumps in the News
Critics and naysayers will be negative whatever the gov...
By JamesPa , 23 hours ago
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RE: Microbore heat pump installs
In principle you are almost certainly right, but in pra...
By JamesPa , 1 day ago
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RE: Electricity price predictions
@old_scientist We are a low mileage home, so bulk of ou...
By ChandyKris , 1 day ago
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There are just too many unknowns for me to comment on p...
By Transparent , 2 days ago
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RE: What is the main ‘dictator’ of Agile’s unit price?
@toodles I keep an eye on wholesale prices and energy m...
By ChandyKris , 2 days ago
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RE: Brand and installer questions for ASHP
Strange, perhaps it doesnt use modbus which the third p...
By JamesPa , 2 days ago
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RE: Upgrading my system, how far do I go?
For comparison, my PW3 with 11.04kW inverter, will char...
By Old_Scientist , 2 days ago
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RE: Changes to Tesla Powerwall Charging Regime?
Elon gate - legendary! I take my hat off to you @toodle...
By Old_Scientist , 2 days ago
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RE: Mitsubishi Ecodan not good enough ?
Thanks @goody, appreciate the feedback and sorry you ha...
By marcexec , 2 days ago
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RE: Minimum and Zero Disrupt Heat Pump Installations
True (first sentence) Thats the reason to consider th...
By JamesPa , 3 days ago
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RE: High air source heat pump running costs – Vaillant AroTherm Plus
Quite right. I was using a rough guesstimate of doublin...
By Majordennisbloodnok , 3 days ago
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RE: My Grant R290 9kW Heat Pump Installation
Again, really don't know how accurate this is! &nb...
By petch , 3 days ago
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RE: MCS Quality Audit – Has Anyone Had One? Did It Lead to Remediation?
@toodles The whole scheme is a shocking waste of money....
By Papahuhu , 3 days ago
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RE: DIY or Don’t Touch? Solarman Smart Meter Install
Yes, and these guys would probably be my preferred inst...
By Batpred , 4 days ago
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RE: Hot water tank lose heat rapidly on random days
@jamespa Hopefully their reasons are well intended! ...
By Bash , 4 days ago
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RE: Ecoflow UK Support & Info Thread
As mentioned above, we’ve got our full review of the Ec...
By Mars , 4 days ago
