
Last seen: Feb 10, 2025
@lfranklin A water temperature that high must be your domestic hot water legionella heating cycle. It needs to heat to this temperature to kill the le...
@derek-m Thanks, I'll give that a go. The installer (along with an engineer from Joules) has promised me a visit on 23rd Feb and I've a loooong list...
@lfranklin Consumption is very much dependant on external temperature. In the recent freezing spells in December and early Jan (we're in Scottish Hi...
@lfranklin. I've a similar system to you, 2 x 12kW Samsungs controlled by Hive and 5.6kW PV array, south facing. The trouble with PV and ASHPs is t...
A window restorer recommended Demidekk products to me a while back. I've used it on some exterior woodwork and a timber shed. It goes on a treat and l...
@squeakysim I think you're right there. If you've only a brief window of cheap tariff, getting as much as you can into the battery will be the aim. S...
@squeakysim you aren't the only one. I've a 3.6kW solis inverter so this pretty much sets the limit on what the batteries can discharge. I say prett...
@soniks I feel your pain, I'm seeing consumption of that magnitude, quite often peaking at over 120kWh on really cold days. I don't have the same syst...
@squeakysim I'm far from an expert in this but what I've learned is that the rate at which batteries can accept charge (or discharge) is related to th...
@squeakysim The system was all specified by the installer. I did a bit of internet trawling research before committing, just to make sure nothing worr...
@transparent I've no cabinet covering my batteries so no, there's no internal heating. This limitation on charging when <0°C is a current discussio...
@squeakysim, I've 2 x 5kWh Puredrive (Purestorage II Hybrid) batteries coupled, via a Solis inverter, to a 5.6kW solar array. Can't offer a great deal...
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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.
✅ Pre-Installation Planning
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Latest Posts
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RE: Newbie out of her depth – Samsung AE120RXYDEG 12kW heat pump
@bami yes. 8kw = 8000w I would change the areas in th...
By bontwoody , 3 hours ago
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RE: Towel rails. An unexpected final hurdle
I had a similar issue but convinced the installer to le...
By Pie_Eater , 4 hours ago
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Cliff, welcome to the forum. You’re running into one ...
By Mars , 4 hours ago
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RE: What is the best strategy for operating a very oversized heat pump?
This whole discussion highlights just how much of a mes...
By Mars , 4 hours ago
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RE: NIBE F2040 12 kW heat pump and 100 liter buffer tank
@cheshirejohn thanks for the update and for sharing. I’...
By Mars , 4 hours ago
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RE: Setback savings - fact or fiction?
Here's the same plot, less the R squared values, done q...
By cathodeRay , 7 hours ago
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RE: SolarPV tables / online calculator
We've only had our solar since last June, but so far fo...
By Old_Scientist , 7 hours ago
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@robs useful thread! Thanks for sharing - Octopus are c...
By big_si , 7 hours ago
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RE: Volumisers in Heat Pump Systems: Does Placement Matter?
@jamespa Agreed. I think it’s a case of much over muchn...
By Mars , 9 hours ago
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@eliuccio Unfortunately, whilst I agree with a lot of...
By JamesPa , 10 hours ago
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RE: Samsung Gen 7 R290 12kW is not behaving how I expected
Definitely its in the 20xx FSVs. Conversely it may be...
By JamesPa , 11 hours ago
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RE: Heat Pump Sizing & Installation Costs
Perhaps useful to have installed date too? To get conte...
By Tim441 , 15 hours ago
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RE: F.788 Building circuit pump reports internal fault - Vaillant Arotherm
Guess I have to wait for engineer visit. I really hope ...
By jeegnesh , 1 day ago
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RE: Act now to defer the UK road tax increase on EVs
@majordennisbloodnok Damn right sir. my attempt at iron...
By Jancold , 1 day ago
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RE: ASHP and heating issues in new build house
That’s good gives you more capacity. It made me think, ...
By Terry1812 , 1 day ago
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RE: Seewet manhole cover within r290 exclusion zone
Thanks! I asked Vaillant, and they say I should be fi...
By dbrb2 , 1 day ago
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Looking for the Grant Aerona 3 setting to turn off completely at 20 OAT
I'm running my Aerona 3 on WC and the 'warm end of that...
By damonc , 2 days ago
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RE: Do I just go with the lowest quote for my heat pump?
So after signing in Sept in two weeks the install may s...
By Jancold , 2 days ago
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RE: Victorian Semi Retrofit / Extension ASHP and UFH Advice
When you are renovating is always a good time, as it ma...
By JamesPa , 2 days ago
Latest Topics
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By cliffhanger 4 hours ago
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Heat Pump Sizing & Installation Costs
By Mars 17 hours ago
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Volumisers in Heat Pump Systems: Does Placement Matter?
By Mars 18 hours ago
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SolarPV tables / online calculator
By MichelleC 1 day ago
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Samsung Gen 7 R290 12kW is not behaving how I expected
By Joshua 2 days ago