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 9, 2026
Too expensive IMHO for a whole house, at this point do the job properly and fit fancoils (also expensive!) or larger radiators. Best IMHO used in 'ma...
@mars I think you say somewhere in the video that fans dont increase rad output. I think they do. By blowing more air over the fins/panels the heat ...
Sorry I dont know the answer to that as I dont have a Mitsubishi myself. Perhaps @sheriff-fatman knows. I imagine somewhere in the installer section...
What I have definitely noticed since getting the heat pump is that I have almost no sense of what the outside temperature is; I have to look at the he...
'setback running shoots itself in the foot by somehow compromising COPs at higher OATs?' is very plausible. At higher OATs the heat pump is going t...
All noted, Im not doubting you, just trying to be certain (and hopefully help you be certain) that what you are measuring is real and representative o...
So you can get totally analogue sensors that are held on the side of the flue by a magnet. Hook up a cheap camera pointed at the sensor and feed the ...
Thanks for the further info. Are the two pumps just because one wasnt sufficient, or is there anything between them. Have you got the Mitsubishi pr...
Have you got an LLH or buffer? If so which pump speed did you reduce and which flow rate are you measuring? At moderate OAT expect deltaT to fall u...
OK 12 hours stable running should be enough to get a good reading. Can you be more precise about where the flow and return temperature sensors which...
Improvement is good. Lets explore where we are now. You should definitely be getting better than 3 at 9/35 (Can you confirm 35 measured at and by ...
Just one more thought. If you have convenient space for the 20kW cascade and your installer is paying then it possibly isnt a bad option. Most of ti...
SPONSORS
Degrees of Separation
Latest Posts
-
RE: Is This Initial Free Quote From Octopus Trusted Partner Reasonable?
If you've got a sash window or a door you can remove th...
By EtchedPixels , 16 minutes ago
-
RE: Adding additional Solar Panels to a DC coupled battery system
Also frequently very wrong - handing out diagrams for a...
By EtchedPixels , 23 minutes ago
-
RE: Heat Geek Zero Disrupt: Are We Sleepwalking Into Another Race to the Bottom?
Roughly how most air/air is done except that step 3 doe...
By EtchedPixels , 26 minutes ago
-
RE: Replacing Storage Heaters with a Heat Pump in a Stone Cottage
I'm certainly interested in it. I tried to work out how...
By cathodeRay , 26 minutes ago
-
RE: Nook batteries from Octopus
@batpred If your energy use is low enough that just get...
By EtchedPixels , 36 minutes ago
-
RE: Indevolt Batteries UK Support & Info Thread
Ditto - our sunsynk has all the stuff built in for back...
By EtchedPixels , 45 minutes ago
-
RE: Missing flow temperature in Heat Geek proposal
I suspect 4 yrs ago, their approach had not got to this...
By Batpred , 55 minutes ago
-
RE: Vaillant ecoTEC Plus - Flow Temp and Set Up
I too had to reduce the hysteresis even though my dhw t...
By JamesPa , 1 hour ago
-
RE: battery storage without solar
Also don't forget that in you may not be able to use th...
By JamesPa , 11 hours ago
-
RE: Tesla Powerwall (2) Calibration Cycles
One practical safeguard is to separate the calibration ...
By EnergyStorageTech , 12 hours ago
-
RE: tepeo ZEB UK Support & Info Thread
There is at least one large scale system in this catego...
By Toodles , 1 day ago
-
RE: Getting closer to a finished Haier system
Apart from sealing the external Primary Pro joints and ...
By Singlespeed , 1 day ago
-
RE: Air-to-Air Heat Pumps & Air Conditioning: UK Heating and Cooling Q&A
Our latest Homeowners’ Q&A episode has just dropped...
By Mars , 2 days ago
-
RE: Vaillant ecoTEC Plus with sensoCOMFORT and weather compensation
Yes, its described in the sensocomfort manual. Its als...
By JamesPa , 2 days ago
-
RE: Heat Geek installations: share your experiences
My summary, highlighting the oddities.
By Batpred , 2 days ago
SPONSORS
