Joining the Renewable Heating Hub forums is completely free and only takes a minute. By registering you’ll be able to ask questions, join discussions, follow topics you’re interested in, bookmark useful threads and receive notifications when someone replies. Non-registered members also do not have access to our AI features. When choosing your username, please note that it cannot be changed later, so we recommend avoiding brand or product names. Before registering, please take a moment to read the Forum Rules & Terms of Use so we can keep the community helpful, respectful and informative for everyone. Thanks for joining!
Last seen: Oct 15, 2026
@cathoderay As I wrote above, it's a "non-defrost restart", so it won't look like a typical defrost. The peak flow temp is only 28.5C and the CO...
In the context of the described time periods yes but not the conclusion of the analysis, which is more important. During the defrost less electricity ...
@sunandair I haven't made any claims of saving energy, @cathoderay has so maybe you are confusing the two of us? My analysis showed that a small ad...
I was merely curious as to the resolution of the data used by the Midea control algorithm and the resolution of its outputs. Given that...
This part of our conversation started with a Samsung but no matter. My question regarding whole (integer) degree changes was because our Mitsubishi OA...
The Met Office API being used seems to have OATs to one decimal place. The system in question was a Samsung and not a Midea, but does your Midea WC cu...
The OAT in the above is from a Mett Office API and representative rather than the actual OAT, hence the staggered rise in temperature - the real OAT d...
I covered the energy flows, with the numbers, in great detail in . The energy used by the defrost (and the energy not delivered to the house during th...
Yes, here's the Samsung zoomed out: If the OAT is rising then less heat will be lost by the property and hence during the recovery less h...
Exactly, it's just lag in the system.
As I wrote above "in both of these cases the OAT was rising so it's possible that the WC curve of both has reduced the required flow temp, and hence t...
We have a good understanding of the data and don't need to reverse engineer a defrost algorithm as we are just interested in the energy flows, which u...
- 27 Forums
- 2,793 Topics
- 66 K Posts
- 3,199 Online
- 7,196 Members
Join Us!
Installer Finder
Degrees of Separation
Latest Posts
-
If you freeze water it expands. That's been a big probl...
By EtchedPixels , 23 minutes ago
-
RE: Heat pump branding. Clever, contemporary… or a bit too much?
Ultimately they are trying to make it possible for low ...
By EtchedPixels , 25 minutes ago
-
This post is about how I successfully configured a buff...
By Tony.Stolz , 47 minutes ago
-
The installer visited yesterday and suggested the noise...
By JamesChatz , 2 hours ago
-
RE: Heat Geek installations: share your experiences
I struggled with this problem as well. An independent t...
By L8Again , 3 hours ago
-
RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
Your house sounds a lot like mine. 2 surveyors each sp...
By JamesPa , 4 hours ago
-
RE: Heat Geek Zero Disrupt: Are We Sleepwalking Into Another Race to the Bottom?
Thats true only if you do the wrong experiment. Done c...
By JamesPa , 5 hours ago
-
RE: How should the Boiler Upgrade Scheme be reformed?
@temperature_gradient Isn't that just describing a regu...
By Prunus , 6 hours ago
-
RE: battery storage without solar
As of October 1st they need specific qualifications to ...
By EtchedPixels , 18 hours ago
-
RE: Renewables & Heat Pumps in the News
With regards to the BUS grant raid, I gave it more thou...
By ASHP-BOBBA , 19 hours ago
-
RE: Why are ASHP installs so expensive?
The whole system seems to work on the basis of...
By ian33a , 19 hours ago
-
RE: Missing flow temperature in Heat Geek proposal
Good plan. If you can get half hourly meter readings a...
By JamesPa , 1 day ago
-
RE: Heat Pumps Without Grants: Would You Have Installed One & Will You Now?
@editor Most certainly. The heat pump was an ideal s...
By Abernyte , 1 day ago
-
RE: Does anyone have experience of a smart water meter?
Yep I caught our slow leak from a £100 bill rise 8)
By EtchedPixels , 1 day ago


