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Last seen: May 14, 2026
@petch I'm very sorry that I have not picked up your post before. I hope this feedback is still helpful.Leaving pump blockade off enables the heat pu...
@batpred I have the Aerona 290 15.5kW. It has run happily through our first winter down to -5C with no problems. I suggest you read the Grant Aer...
I have a Grant Aerona 290 15.5kW. It is running really nicely, so I think you will be pleased with yours. I’m happy to help in any way I can, includ...
@davidalgarve very frustrating, but I get the impression that you may be making some progress?
@davidalgarve compared to the UK, several things seem strange about this: Our electricity suppliers have standard outgoing tariffs, which we pick ...
@craigh I would say it is a bad idea. I can’t see any logical justification for setting the flow temperature to 20C when it is 14C outside. Obvious...
@davidalgarve I am curious that you are not receiving any credit for exporting. Is there any possibility of fixing that?
@craigh if you have a target room temperature of 20C, then use the weather compensation curve to set the flow temperature to 20C when the outside temp...
I agree with @jamespa. I am on the Intelligent Octopus Go EV tariff, so it costs me 5p per kWh at night and 27p per kWh during the day. My export ta...
I have a Grant Aerona 290 15.5kW air source heat pump with the latest Grant Smart Controller. The controller does not have a holiday mode. In fact I...
Out of interest, why did you buy the Aerona 3 R32, rather than the Aerona R290? You would probably be better off with the Aerona Smart Controller, r...
The Grant Aerona Smart Controller has an interesting approach. It has a parameter called Room Temperature Correction. It applies the following formu...
Latest Posts
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RE: Estimating true heat loss from twelve months of consumption data
Hi @ian33a you could do your own heat loss calculation ...
By Judith , 2 hours ago
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RE: A2A vs A2W: Which Heat Pump Would You Pick?
@djh ah, I have never seen this before, interesting ide...
By ASHP-BOBBA , 2 hours ago
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RE: Anyone concerned about GivEnergy?
@sunnyskies I agree with Downfield trying to ask the GE...
By Judith , 3 hours ago
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RE: Setback savings - fact or fiction?
@jamespa — this version may be marginally better: &nb...
By cathodeRay , 5 hours ago
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RE: New Vaillant aroTherm Plus in black - When will it come to the UK?
All going according to plan, mid July we get that 7kW a...
By Batpred , 5 hours ago
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Current metrics - DHW target set to 47c
By TaffontheTaff , 10 hours ago
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RE: My Grant R290 9kW Heat Pump Installation
@petch I'm very sorry that I have not picked up your po...
By GrahamF , 12 hours ago
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RE: Samsung gen 7 HP 12kw - auto control issue and water law
Suggest you have a trial with Havenwise app. I have th...
By Broadsman , 14 hours ago
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RE: New Solar, Batteries, Air Source and Under Floor Heating advice please
You’re right: UFH works best with high-conductivity fin...
By bafab , 17 hours ago
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RE: DIY or Don’t Touch? Solarman Smart Meter Install
That was my understanding also.
By JamesPa , 17 hours ago
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RE: Grant Aeona 3 R32 cycling with weather compensation.
That would be abnormal but I cant see from your charts ...
By JamesPa , 18 hours ago
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RE: Vaillant Sensocomfort Time
Oh I remember this from when I set mine up 2 years ago,...
By JamesPa , 1 day ago
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Heat geek have already stated that the pro is in fact c...
By JamesPa , 1 day ago
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RE: The Myth of the MCS Performance Guarantee
@editor I know. As if MCS wasn't bad enough, it's now e...
By Deltona , 1 day ago
