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GrahamF
GrahamF
@grahamf
Member
Estimable Member
Joined: May 2, 2025
Last seen: Apr 20, 2026
Profile Activity
Topics: 6 / Replies: 115
AllTopicsReplies
Reply
RE: My Grant R290 9kW Heat Pump Installation

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...

5 days ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Choosing a time for DHW heating?

@davidalgarve very frustrating, but I get the impression that you may be making some progress?

5 days ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Choosing a time for DHW heating?

@davidalgarve compared to the UK, several things seem strange about this: Our electricity suppliers have standard outgoing tariffs, which we pick ...

3 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: What is the lowest temperature you set your heat pump to?

@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...

3 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Choosing a time for DHW heating?

@davidalgarve I am curious that you are not receiving any credit for exporting. Is there any possibility of fixing that?

3 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: What is the lowest temperature you set your heat pump to?

@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...

3 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Choosing a time for DHW heating?

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...

3 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Grant ASHP keeps switching on every hour

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...

3 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Issue with Grant ASHP

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...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Any thoughts on control strategies for heat pumps?

The Grant Aerona Smart Controller has an interesting approach. It has a parameter called Room Temperature Correction. It applies the following formu...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Gaslighting in the heat pump industry – has anyone else experienced this?

@gruff2001 I had an MCS inspection on Tuesday. He checked whether we had a proper soak-away for defrosting the heat pump, looked at the pipework arou...

3 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Gaslighting in the heat pump industry – has anyone else experienced this?

I was asked to help a lady who had an Ideal heat pump installed under the ECO4 scheme. She asked for help, because the lounge thermometer was reporti...

3 months ago
Forum
Air Source Heat Pumps (ASHPs)
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