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 24, 2026
Why do buffers get such a bad press? They aren't evil, they're just not properly designed. I buffer should hold a volume of heat and absorb swings ...
@JamesPa OK, I'll give it a go (no promises), point me in the direction of what you're trying to solve. Edit: Just had a thought, one technique I u...
@cathoderay Ah OK, sounds like an interesting way to observe heat loss. I didn't mean to step on people's toes. I'm looking forward to seeing more d...
Heat transfer through objects can be determined by the equation: Q = U.A.DT Q = Energy transfered, kJ U = Heat Transfer Coefficient, kJ/m2/C A...
A slight distraction: But just to show what high temperature heat pumps can really do! Bob
Ah....yes, sorry. The spreadsheet is actually a generic calculation. My comment "the ASHP power at 12kW" was me trying to say "I've limited the inpu...
I find myself hoping for cold weather and more data 😉 Bob
Yeh...those are them 🙂 Bob
@transparent Yes, all those reasons crossed my mind when I was designing the original system. To answer your original question, please see the attac...
@cathoderay It's great your house is now getting too warm, we're making progress. It looks to me as though the average ASHP power is higher with the...
Sure, here's bunch of pictures. The plate exchanger is shoe horned into the back of the airing cupboard, it's not easy to get photos of. ...
@Transparent it's an interesting proposal. I don't think the energy balance quite works. The radiators and hot water tap remove energy from the sys...
- 26 Forums
- 2,689 Topics
- 63.1 K Posts
- 651 Online
- 7,099 Members
Join Us!
Installer Finder
Degrees of Separation
Latest Posts
-
RE: Summer heat is becoming the new winter cold in the UK. What are you doing about it?
You guys have it easy It's engineering: calories in...
By bobflux , 4 hours ago
-
RE: Moving growatt axe batteries
@etchedpixels just been informed that you can’t have ba...
By David999 , 5 hours ago
-
RE: Anyone have experience with Daikin Multi+ for air to air & hot water?
Maybe, just maybe, if you are prepared to leave the doo...
By JamesPa , 5 hours ago
-
RE: How to heat a bathroom when using an air to air heat pump?
You can air/air a bathroom with a suitable ceiling or o...
By EtchedPixels , 6 hours ago
-
RE: Plug and play solar. Thoughts?
They've been extensively tested by folks like the Germa...
By EtchedPixels , 6 hours ago
-
RE: How do I set up Tesla Powerwall export for saving sessions since AI Takeover?
@papahuhu The decision as I say, was influenced very he...
By Toodles , 10 hours ago
-
RE: GivEnergy inverter tripping due to over-voltage?
A summary of this history and discussion for those sear...
By Tim441 , 15 hours ago
-
RE: Electricity price predictions
@majordennisbloodnok Similar, although no heat pump h...
By IanMK13 , 17 hours ago
-
RE: vaillant arotherm plus - Failure - DHW
As expected it failed to run late yesterday with the sa...
By trebor12345 , 19 hours ago
-
RE: Minimum and Zero Disrupt Heat Pump Installations
Personally, I don't always rate the "payback on install...
By HeatNoob , 1 day ago
-
RE: Adding additional Solar Panels to a DC coupled battery system
@transparent thanks. Will be sure to keep a record of s...
By bontwoody , 1 day ago
-
@jamespa Well, something along the lines of "three buse...
By ian33a , 1 day ago



