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: Nov 12, 2026
Thats not directly relevant because you are comparing real time heating with stored hot water. Real time heating is dominated by the raw power you ca...
I guess that depends on where you measure it. If measured at the heat pump then the flow rate for any given heat transfer at any given deltaT (across...
Typically DHW tanks are cylindrical and ~1.4m high (or more) Is the loft a possibility? If not then with the relatively small space available you ...
@transparent I dont disagree in principle but ... in the real world where time is money and the customer doesnt want to pay the latter existing ca...
For what its worth I had exactly the same experience with my Vaillant heat pump and have settled on operating in pure WC mode. One of the challenges...
I read the post you referenced and Im not wuite sure what the question you are trying to answer is. If its this "In summary, if I had the choice...
I think your argument is based on the relatively unusual case of a very low loss house with a large slab/UFH operating at a low flow temperature. The...
Thats fair. Essentially all the controller needs to do is adjust target flow temperature (or possibly the WC curve so that the heat pump is left to a...
I think those wires might be sensor connections possibly to the points marked wht 1 2 on the diagram
Agree with the internet connection comment, although I think (but may be wrong) it relies on this only for the more advanced features like tariff opti...
SPONSORS
Degrees of Separation
Latest Posts
-
RE: DIY powerflushing tutorial
Damn that pic is awesome They do sell auto-refill val...
By bobflux , 18 minutes ago
-
@brazilguy67, glad you've managed to get someone to hav...
By Mars , 35 minutes ago
-
RE: Air source heat pump roll call – what heat pump brand and model do you have?
We've had an influx of new members joining the forums o...
By Mars , 2 hours ago
-
RE: How Can I Prove Coal Was My Main Heating Source Without Receipts?
Got excepted for the grant now so thanks for the replie...
By Chilli304 , 3 hours ago
-
Daikin Altherma 3 R F+W, room thermostat control, weath...
By JanHarley , 4 hours ago
-
RE: Buffer tank on a 2 x 14kw Ecodan system
Pretty much as I had guessed in my crude scaling from m...
By JamesPa , 7 hours ago
-
RE: Help me keep the faith with my air source heat pump installation
Well you have a vibration generator running at some fre...
By bobflux , 20 hours ago
-
RE: Why don't people choose heat pumps?
@susannasaunders The link I have found may provide a li...
By Toodles , 23 hours ago
-
RE: Who's your electricity provider and what's your tariff?
@downfield Thats a decent rate, I’m shocked they hadn...
By Papahuhu , 2 days ago
-
RE: Should Households Who Can Afford It Pay More for Energy to Help Those Who Can't?
@batpred I mentioned earlier that targeting the payment...
By Toodles , 2 days ago
-
RE: Adventures in heat loss calculations
@toodles thanks! So as suspected, around a doubling of ...
By SusannaSaunders , 2 days ago
-
Six books in three years and I think I’ve now covered j...
By Mars , 2 days ago
-
RE: Grant Aerona3 13kw - Buffer Tank - Heating Journey
@heymikey Well done in achieving as nearer a match acro...
By Toodles , 2 days ago
-
Grant Aerona - Weather Compensation and Schedules
Im trying to set up a friends Grant Aerona. The WC curv...
By bontwoody , 3 days ago
SPONSORS
