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Last seen: Aug 5, 2026
@misiak Hello. The Samsung pump is capable of generating a flow temperature of up to 70C. The heat transfer into DHW (depends on storage tank efficien...
@jamespa @johnr from my understanding COP is the ratio of how much heat energy a thermal machine can move compared to the work (electrical input) done...
@johnnyb to be fair I did not know in the beginning either. I had to do my own research and experimentation to understand what was going on. This li...
@johnnyb If it is any help, I calculate the COP / SCOP using the following formula for my Samsung heat pump ( Energy Generated + Energy In ) / E...
@cathoderay this looks similiar to a phenomenon I experienced while setting up my weather curve. I fixed my issue by slightly increasing the flow te...
@ccap running my oil boiler is just a personal choice for me. My heat pump is physically capable of heating the house to about -6C OAT before it will ...
@ccap just to give you some rough comparisons, I have a Samsung 12Kw HT Quiet unit which most of the time produces a flow temperature in the 30C range...
@editor If I was in your shoes I would be making fitting a smart meter a priority. I know they have had bad press recently but smart meters open up a ...
@editor I guess the DWH strategy used can be influenced by the tariff one is on. For example I have a 200 litre DHW tank with an Octopus Go tariff. ...
@toodles discounting the ASHP and EV our baseline consumption (fridge freezer, lights, gadgets and cooking) averages about the same at 7Kwh / day, so ...
@jancold Could well be a data harvesting example or could the Sim in the car be a simple protocol converter to enable the Octopus Kraken system ...
@suzy-shadow Hi, Domestic hot water production is generally less efficient in itself. For example my combined heating and hot water efficiency is on a...
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Degrees of Separation
Latest Posts
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RE: Solar Power Output – Let’s Compare Generation Figures
@toodles Very nice. Ours was the opposite, about 10%...
By Papahuhu , 53 minutes ago
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RE: Adding additional Solar Panels to a DC coupled battery system
A couple more points about placing solar panels at low ...
By Transparent , 1 hour ago
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Problems with sizing a replacement for a Viessmann Vitocal 200-S
Apologies in advance for the long post! My house has ...
By jon , 6 hours ago
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RE: How Accurate Is My DIY Heat Loss Calculation?
@kilgorexv definitely a larger inverter will help and m...
By AndrewJ , 1 day ago
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RE: Adventures in heat loss calculations
@rob-of-york — thanks for posting this, all very useful...
By cathodeRay , 1 day ago
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RE: Surface mount or bury primaries for heat pump installation?
The installation is almost done! I've written up two ...
By tomasmcguinness , 2 days ago
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RE: Glass lined Cylinder for private water supply
This has turned into a fascinating little rabbit hole. ...
By Mars , 2 days ago
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RE: Switch suitable to change between two inverter CT's
Last winter my battery ,32KWh, could run the house com...
By Jancold , 2 days ago
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
Agree with Major. And even if I was very happy with ...
By Batpred , 2 days ago
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RE: Is the "divide by 2900" rule still valid?
There is another estimator that you could use, a formul...
By Rob of York , 2 days ago
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RE: To re-pipe or not to re-pipe? Moving from oil boiler to air source heat pump.
@penval, really useful update. After all the discussion...
By Mars , 4 days ago
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RE: Who's your electricity provider and what's your tariff?
@papahuhu I prefer to look at it simplistically. We d...
By Old_Scientist , 5 days ago
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RE: Questions about A2A for heating as well as cooling
@rob-of-york I would concur with the underfloor insulat...
By Toodles , 6 days ago
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RE: New Vaillant Arotherm controls link to existing thermostats ; wired vs wireless
Nothing attached! I have rads but UFH makes the case ...
By JamesPa , 6 days ago
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