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Last seen: Oct 20, 2026
I have some experience with Grade II listed buildings and heat pumps. Three general points: (1) ASHPs do work OK in listed buildings (buildings a...
OK, I got that wrong, but you do have a bias - towards All I am saying is that in a forum we are not writing balanced impartial reports, we are d...
And why not: this is a forum, and forums are places for debate, and debate means two or more parties putting their case on the table. I'm not trying t...
@majordennisbloodnok - I'm not in the business of telling anyone they must do something a particular way, but I am in the business of saying there are...
The ideal is to go for for something that just exceeds your heat loss at design temp (-2 or thereabouts depending on where you are) when running at th...
@editor - Mars, don't worry, I wasn't in any way put out, just wanted to plug some of the reasons why I think modbus has a lot to offer!
Sadly, this sort of nonsense is all too common. At one point I very nearly issued a decree that if any employee of a certain heating company were seen...
Don't forget I have been talking about it for ages! It has many advantages. It is (if your heat pump/inverter/whatever has a modbus interface, which m...
A 20kW ASHP to supply a 13.22kW demand seems a bit on the high side, even allowing for the fact most heat pump suppliers inflate their rated outputs b...
Great, you must be very pleased! I'm also sure others will welcome a separate thread with details of your wider setup, and a slightly different emphas...
@majordennisbloodnok - my hunch is that it is the device address. This can be a gotcha - you can't ask it what it's device address is without knowing ...
@majordennisbloodnok - cripes, it sounds complicated! At its simplest, a modbus connection is just two wires, A to A and B to B, plus (optionally) a...
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Degrees of Separation
Latest Posts
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RE: 15kw pump for 225m2 1990's house - over kill?
I would echo the comments made by jamespa. Insulate as...
By DavidB , 16 minutes ago
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My heating has been off and DHW on throughout the summe...
By DavidAlgarve , 2 hours ago
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RE: Anyone concerned about GivEnergy?
The GivE forum seemed to have survived the collapse of ...
By downfield , 3 hours ago
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RE: How quickly would you want/expect heat recovery to take from setback?
@singlespeed I had better explain how my radiators are ...
By Toodles , 3 hours ago
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RE: Cooling/heating with one unit
@mrkfm The Solo has a small capacity and only suitable ...
By dgclimatecontrol , 4 hours ago
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RE: Renewables & Heat Pumps in the News
The irony is there's already an established internation...
By Temperature_Gradient , 6 hours ago
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First you need to know how much thermal energy you'll n...
By bobflux , 16 hours ago
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RE: Renewable Heating Hub Homeowners' Q&A Podcast
Come for the low-carbon homes. Stay for George Clarke’s...
By Mars , 2 days ago
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RE: Octopus Cosy 12 Heat Pump Regret: Incredibly Loud, Poor Heating & Constant Hum - Help!
@razz, as we head into the heating season, I just wante...
By Mars , 2 days ago
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RE: How should the Boiler Upgrade Scheme be reformed?
Not quite, regular A2W heat-pumps need a load of extra ...
By Temperature_Gradient , 4 days ago
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RE: Heat Geek installations: share your experiences
one thing i learnt from reading people’s comments and e...
By Batpred , 4 days ago
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RE: Do I add Air Con or MVHR to existing A2W ASHP?
We have ‘signed on the dotted line’ today for a Panason...
By Toodles , 4 days ago
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RE: Heat pump branding. Clever, contemporary… or a bit too much?
...or it was there and was lost thanks to laziness and ...
By Majordennisbloodnok , 4 days ago
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Bufferless design & control of Chinese air to water monoblock hybrid heat pump in Alberta, Canada
This post is about how I successfully configured a buff...
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