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Last seen: Oct 11, 2026
@editor I watched some of the videos on Grahams heatpump channel and they look to be well put together. Importantly the controller seems to be a lot m...
@will-h posting above is the reason for me finally saying hello, as the HP I'm swaying towards is the Haier 6kW R290 single phase air source heat pump...
I've been following the forum, watching the podcasts for a while as our heating definitely needed an overhaul. The house is a 1990 conversion of an ...
@editor "The interesting bit is that many modern inverter heat pumps already sort of do this internally. They don’t necessarily just whack the flow te...
I’m not a huge fan of AI, but comparing one scenario to another and working out the maths definitely has its uses. I asked: “Heating a 200L DHW cy...
It was just a thought, because I'm looking to get a Grant r290 6.5Kw and the tech data sheet shows A7 W35 7.62Kw COP 4.95 A7 W55 7.23Kw COP 3.00 ...
Can the heat easily travel up your pipework? Obviously copper pipes will conduct heat away from the tank, but pipes which go upwards from the tank c...
@errmm with the Heliotherm fresh hot water system, having the Plate Heat Exchanger, being the right hand of the two cylinders in your photo That tank ...
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Degrees of Separation
Latest Posts
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RE: Passiv Smart Thermostat - Help & Forum Support
Hi @will-h After a week or running on the Haier cont...
By Singlespeed , 4 hours ago
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RE: Replacing Storage Heaters with a Heat Pump in a Stone Cottage
All very true. Personally I also put a fair amount of w...
By cathodeRay , 9 hours ago
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RE: tepeo ZEB UK Support & Info Thread
OK so ZEB is basically a variant on a storage heater, b...
By JamesPa , 1 day ago
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RE: PV and battery long payback - sense check query
@energystoragetech it's highly improbable that @davidb ...
By Transparent , 1 day ago
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RE: Heat Geek installations: share your experiences
@editor I suspect that the Heat Geek online quote is a ...
By AndrewJ , 1 day ago
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RE: Adding additional Solar Panels to a DC coupled battery system
Ah, yes. Thanks for clarifying.
By Transparent , 1 day ago
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RE: Vaillant ecoTEC Plus - Flow Temp and Set Up
@trebor12345 I have been meaning to get home assista...
By Batpred , 2 days ago
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RE: Indevolt Batteries UK Support & Info Thread
SunSynk hybrid inverters also have the capability to as...
By Transparent , 2 days ago
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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 , 2 days ago
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RE: Are We Sleepwalking Into Another Race to the Bottom?
Roughly how most air/air is done except that step 3 doe...
By EtchedPixels , 2 days ago
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RE: Nook batteries from Octopus
@batpred If your energy use is low enough that just get...
By EtchedPixels , 2 days ago
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RE: Missing flow temperature in Heat Geek proposal
I suspect 4 yrs ago, their approach had not got to this...
By Batpred , 2 days ago
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RE: battery storage without solar
Also don't forget that in you may not be able to use th...
By JamesPa , 2 days ago
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RE: Tesla Powerwall (2) Calibration Cycles
One practical safeguard is to separate the calibration ...
By EnergyStorageTech , 2 days ago
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