Last seen: Mar 19, 2025
Hello @Curlykatie, How much hot water do you get through as a family? 300L is decent sized cylinder, charging for 1hr a day should be plenty assumin...
Well, if ASHPs are an expensive folly, I'm a fool. Currently I'm requiring about 86kWh a day for heating 3/4 floor area of the house and daily hot w...
@andehh the Samsung EHS Mono HT has a more complicated refrigeration system with intercoolers to stop the refrigeration circuit cooking itself for hig...
@soniks this is good news. I'm going to contact Grant regarding why my weather compensation was not enabled, as you point out, it's clearly stated as ...
Hi Jeff. Solar PV panels are now £0.50 per watt, electricity cost is only going in one direction, so max out all available roof space. Exporting power...
@soniks use the default Grant settings as a start. Have you found out why your ASHP is cycling on and off and what is causing it? That's a separate is...
@soniks it's exactly as per @derek-m comment. Something is switching your ASHP on and off 2 or 3 times an hour. Because of that your flow temperature ...
@bretix we're all learning on these systems 🙂 I would set the secondary pump to full flow, always. If the pipe distance between your low loss header ...
@bretix the dial on the HW cylinder is just a cylinder stat, turn and set it to whatever hot water storage temperature you want, it will then revert t...
Oversize unit: it may cycle in and off more on low output, as the heating load might be below the minimum turn down capacity of the unit. That will co...
As Osiwu says, short circuiting of the evaporator airflow, where the discharge air ends up back at the coil inlet face, will reduce performance. But t...
Really sorry to read this @jswhite. 16kW is a large unit for 120m2 heated area, especially if you usually have diversity and only some rooms heated. Y...
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Heat Pump Dramas?
Thinking about installing a heat pump but unsure where to start? Already have one but it’s not performing as expected? Or are you locked in a frustrating dispute with an installer or manufacturer? We’re here to help.
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Latest Posts
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RE: Nibe F2040 ASHP PCB failure
@delta I’ve raised this with NIBE today. Their team is ...
By Mars , 14 minutes ago
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RE: Are MCS are finally improving (some of) their guidelines?
Encouragement of installers to take account of the emit...
By JohnR , 19 minutes ago
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RE: Smart TRV experiences (ideally integrating with Midea heat pump)
Yes, I'd read that and already knew that LSVs exhibit a...
By madbilly , 33 minutes ago
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In our case the pipe run for the heat pump is short and...
By madbilly , 43 minutes ago
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Plug and play solar. Thoughts?
What do you think of these plug-and-play Balcony Solar...
By Lucia , 3 hours ago
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@toodles no, unfortunately we don’t have access to the ...
By Simon and Zoe , 4 hours ago
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RE: The EPC Dilemma: How Current Ratings Fail Heat Pumps
Hi, im not an expert on EPCs but today got a D for my 1...
By rodwebster , 5 hours ago
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@sandman1600 What I mean is, your UFH power is 79wm2...
By davidnolan22 , 5 hours ago
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RE: Vaillant AroTherm Plus 7kW
Thank you James for such a complete write up. We also h...
By Judith , 5 hours ago
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RE: Ecodan Auto Adapt Questions
It wasnt me that mentioned this, was someone else, I wa...
By JamesPa , 6 hours ago
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RE: Renewables & Heat Pumps in the News
In a move that potentially promises to benefit homeowne...
By Mars , 6 hours ago
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RE: Vaillant water pressure gauge vs Analogue gauge
I have the same, so equally interested in the answer. ...
By JamesPa , 6 hours ago
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RE: Volumisers in Heat Pump Systems: Does Placement Matter?
Possibly 40c vs 30c flow has something to do with it…. ...
By SUNandAIR , 8 hours ago
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RE: Thinking of ripping our my IVT Greenline HT Plus C model and replacing with a gas boiler.
Somebody has to pay for their ignorance! In fairness ...
By JamesPa , 10 hours ago
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Thats simply not true (to any material extent), which i...
By JamesPa , 24 hours ago
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RE: Confused about Samsung Gen6 Hot Water Controller
@derekdeleon OK right now the water temp is 53.5 and I ...
By ntruby , 1 day ago
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Database of heat pump performance data?
Hi all, I really like Heatpunk, especially the way th...
By madbilly , 1 day ago
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RE: Air source heat pump roll call
Good idea 🙂 Manufacturer: MideaModel:10kW R32 Monob...
By madbilly , 1 day ago
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RE: What is the best approach for primaries in heat pump installations?
Don't forget there is no such thing as zero loss insula...
By Judith , 1 day ago
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RE: Battery storage to run Heat Pump.
@transparent Flexibility Services are different to w...
By Lucia , 1 day ago
Latest Topics
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Plug and play solar. Thoughts?
By Lucia 3 hours ago
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By JamesPa 6 hours ago
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Vaillant water pressure gauge vs Analogue gauge
By jeegnesh 7 hours ago
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Database of heat pump performance data?
By madbilly 1 day ago
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By madbilly 1 day ago
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Confused about Samsung Gen6 Hot Water Controller
By ntruby 2 days ago
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help with new bathroom and towel radiator
By AdamK 2 days ago
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Grant Aerona fine tuning advice needed
By Stopbar 3 days ago