Last seen: Mar 20, 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: Plug and play solar. Thoughts?
@lucia, I think balcony solar panels are cool and for g...
By Mars , 22 minutes ago
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RE: Volumisers in Heat Pump Systems: Does Placement Matter?
@gary I'll try and help, but at the moment I'm not rea...
By BobTSkutter , 4 hours ago
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RE: Additional Battery v Wind Turbine v Ripple
The biggest problem for the Coops is that Ripple funded...
By Abernyte , 4 hours ago
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RE: The EPC Dilemma: How Current Ratings Fail Heat Pumps
I've commented earlier in this thread, finding the same...
By Mike Patrick , 5 hours ago
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RE: To relocate or add extra PV panels..advice required
It looks normal up to 10:30!
By Judith , 5 hours ago
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RE: Ecodan Auto Adapt Questions
@boycey Think I'll wait to see what Misti come up with....
By Richard24738 , 5 hours ago
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RE: SolarPV tables / online calculator
This guy did a good analysis in summary go down a...
By Judith , 6 hours ago
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RE: Is it worth siting panels on an East facing roof?
@carpenterstation oops - yes I do! 7MWh
By downfield , 7 hours ago
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RE: ASHP Ecodan L9 error - No Heating but Hot Water
@dnagre delayed reply! It worked again for a bit but ha...
By Phoenix15 , 8 hours ago
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RE: Vaillant Arotherm Plus - new build no heating, no radiator
@john1756 did you ever get to the bottom of this?
By Mars , 11 hours ago
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RE: Aira Heat Pump: Stylish Scandinavian Heating
We tested the away mode for the first time as we were a...
By ChandyKris , 13 hours ago
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RE: Confused about Samsung Gen6 Hot Water Controller
Found a copy on this really good website 🤣 ...
By DerekDeLeon , 14 hours ago
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RE: Smart TRV experiences (ideally integrating with Midea heat pump)
@madbilly - I think you may risk over-complicating this...
By cathodeRay , 14 hours ago
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RE: Nibe F2040 ASHP PCB failure
@editor that is awesome! Your help is much appreciated.
By Delta , 24 hours 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 , 1 day ago
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In our case the pipe run for the heat pump is short and...
By madbilly , 1 day ago
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@toodles no, unfortunately we don’t have access to the ...
By Simon and Zoe , 1 day ago
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@sandman1600 What I mean is, your UFH power is 79wm2...
By davidnolan22 , 1 day ago
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RE: Vaillant AroTherm Plus 7kW
Thank you James for such a complete write up. We also h...
By Judith , 1 day ago
Latest Topics
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To relocate or add extra PV panels..advice required
By WesleyP1874 11 hours ago
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Is it worth siting panels on an East facing roof?
By Carpenterstation 12 hours ago
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Plug and play solar. Thoughts?
By Lucia 1 day ago
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By JamesPa 1 day ago
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Vaillant water pressure gauge vs Analogue gauge
By jeegnesh 1 day ago
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Database of heat pump performance data?
By madbilly 2 days ago
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By madbilly 2 days ago
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Confused about Samsung Gen6 Hot Water Controller
By ntruby 3 days ago
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help with new bathroom and towel radiator
By AdamK 3 days ago