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: May 25, 2026
It's possible to estimate the minimum power from the inverter modulation range, often called "Compressor Hz" in the technical documentation: for my LG...
This looks like a practical solution 👍
Here's a LibreOffice spreadsheet. I put the formula for pipe pressure drop in a macro, so you'll have to enable macros in the options when it loads....
Pylontech US5000 stores about 4.3 kWh accounting for inverter losses and costs 1000€. Over 3000 cycles this means one kWh going through the battery co...
I also totally agree with the recommendations from Mars and James 🤣 All installers who came here wanted a big buffer tank. When I attempted...
Yes, here's mine. From the service manual parts numbers (compressor etc), the 12-14-16kW models are identical, and all are actually "much more than 16...
Had to learn the hard way 🤣 now I'm sharing The house has underfloor heating with non barrier PEX installed by the previous owner, this ende...
I'm going to install Thermacome ACOSI+ radiant ceiling. It's a French product, so perhaps not available in the UK, but still some important points: ...
@mk4 Charge to 100%, discharge down to 10%.
This mess is intriguing: I wonder if this represents cycling, and if so how long the cycles are. But I don't see cycles on the water temperature c...
ASHPs do have a minimum compressor speed. The minimum heat output at that speed depends on air and water temperature. 12kW Vaillant with 45/40°C wat...
Location: near Lyon, France 12kWp on the roof, 2x Solis S5 6kW hybrids, 20kWh Pylontech So far pretty good
Latest Posts
-
RE: Heat Pump Overpromising – What Were You Actually Told Before You Bought?
No, I agree entirely. There shouldn't be a need for an ...
By Majordennisbloodnok , 7 minutes ago
-
RE: How many people are happy with their ASHP and do you believe them?
I agree, and not. Energy prices are a largely politica...
By JamesPa , 51 minutes ago
-
RE: Solar Produced vs Home Consumed
All inverters will use solar power in preference to dra...
By JamesPa , 57 minutes ago
-
Yes, you will need to notify them even if the inverter ...
By Old_Scientist , 1 hour ago
-
RE: Heat Pump Manufacturers Recommending Buffer Tanks
@tony-stolz, I think @jamespa has already covered the h...
By Mars , 14 hours ago
-
RE: Heat Pump Operation in Summer - Valliant 7kW
I do the same: cool my large buffer (3000L) to 10C, pum...
By upnorthandpersonal , 23 hours ago
-
@editor "The interesting bit is that many modern invert...
By Singlespeed , 24 hours ago
-
RE: Ecodan & MelCloud scheduling
With the prospect of warmer weather this week, I brough...
By downfield , 1 day ago
-
RE: A2A vs A2W: Which Heat Pump Would You Pick?
I reached out to MCS directly last week on this and her...
By Mars , 1 day ago
-
RE: Help me keep the faith with my air source heat pump installation
My heating developed a really severe case of noise and ...
By JamesPa , 2 days ago
-
RE: Octopus Cosy 12 Heat Pump Regret: Incredibly Loud, Poor Heating & Constant Hum - Help!
@l2jad I was just thinking all things being equal. Our ...
By AndrewJ , 2 days ago
-
Hi, Does anybody have experience with Heat Geek insta...
By sttpd1917 , 3 days ago
-
I will soon be struggling. Admittedly it is the summer,...
By Batpred , 3 days ago
-
RE: Indevolt Batteries UK Support & Info Thread
Not known yet. I've asked a local Councillor to follo...
By Transparent , 4 days ago
