
Last seen: Jul 9, 2025
As per Robs comment @robs this is a R290 model which will operate down to 2kwh output…. ironically R290s are being hailed by some as the high te...
james you appear to be sighting an example which I have never said. I have never asserted this statement so I don’t see why you are saying it. Abov...
@jamespa apologies James I’m on a train so dashing between platforms
@heatgeek I wouldn't normally comment on such a varied emitter scheme. I think I’m just trying to establish a few principles of HP operation in a simp...
My first thoughts are that the process is more dynamic than your model suggests. Your idea that demand is determined by the house isn’t quite how I se...
hi @jamespa Thanks for your reply. Thinking I can see a pretty good analogy and I will post it in the morning. 👍
Yes I think That’s quoted quite a lot if I’m getting your ratio of 3 correctly. The problem is, like all rule of thumb approximations is that that man...
My original post was as follows….
Thanks for the nod James Hopefully my hand drawn “spreadsheets” are working now…. and the more detailed spreadsheet….. I hope the numbers are ...
Thanks for the official documentation info @transparent . I hadn’t read the most recent offering…. Is it me or does it really avoid tying anything dow...
not sure I agree… most of the sizing issues can be done at the design stage as a calc exercise. And as you and I have discussed previously… the design...
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RE: BUS Grant, removal of all other heat sources
@rikiarn good post! I’ll make some enquiries tomorrow...
By Mars , 5 minutes ago
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Sorry to hear that @bruce. Sadly I’ve heard from multip...
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RE: Crystal Ball Time: Communal or even Area Energy Storage?
I am invested in a couple of listed energy storage fund...
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This might be useful for @bart From/p> "Warning: It...
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RE: Who's your electricity provider and what's your tariff?
That would be my biggest commitment -time to gain great...
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RE: Who has a V2G EV installation
As has been discussed on other threads, trying to justi...
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RE: Aira Heat Pump: Stylish Scandinavian Heating
Thanks @mikeh. Then I will also go back to non smart ta...
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RE: Location of hot water isolation valve on cylinder
@transparent Thank you so much and very helpful. Earlie...
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RE: Ecodan consuming 100kwh per day in new build!!!
It does indeed look like that, @skyefarmer. There is ...
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RE: Plug and play solar. Thoughts?
Have a read of my previous posts on so-called Balcony S...
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RE: Compressor attempts start but fails - Nibe Fighter 2005 8kW
"To tell you the truth, I don't know if HAL is homicida...
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The Importance of Radiator Balancing for Efficient Heating: Introducing the Flow Regulating Valve
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RE: Servicing Hitachi HP in rural Somerset
I'd give GreenGenUK a call or email them: sales@greenge...
By Mars , 5 days ago
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RE: Heating coming on when not required
I played with a max heating temp but there is a world o...
By JamesPa , 5 days ago
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RE: Pressure drop Primary circuit
I've always regarded topping up heating systems as my j...
By JamesPa , 5 days ago
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RE: Heat pump solutions and/or installer recommendations for France
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RE: 5 Star Service from Havenwise
That's always a danger with any new good idea, @morgan....
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