
Last seen: Feb 10, 2025
@rfcalan Sorry, I can't help you with your thermostat challenge! Mine uses a Hive thermostat but it's not great, just promoting on/off cycling with ...
@derek-m Thanks for your input. I'd been mulling over the best configuration option for the master and slave and wondered about reversing it to make t...
@rfcalan Welcome to the crazy world of heat pump optimisation. I've 2 x 12kW Gen6 Samsungs with same controller as you, and similar size DHW so I'll a...
Hi @lfranklin. I'll let you know next week. I'm away at the moment and it's not really been tested with both of us in the house for too long. I'm conf...
@si-fillo I was scratching my head on this very issue before I purchased mine. I've 2 x 5kWh batteries with a 5.6kW array. In the end, after crunching...
@mike-h My DHW tank is in an understairs cupboard so typically at 18 or so ambient. It loses around 0.4° per hour. I'm setting mine up to come on for...
@lfranklin Hi, not drafted it yet. Issue still ongoing and not sure what I can offer by way of learning yet. Upshot is both master and slave units are...
@lfranklin My Samsung will try to heat DHW for 60 mins. If it can't achieve set point in that time it reverts back to heating mode and the immersion a...
@lfranklin Sorry, I've been scratching my head wondering how, if your heating is off, you are getting such cycling. Doesn't sound right to me but I'd ...
@lfranklin My installer left mine with settings of 50° at 2° outside, and 42° at 15° outside. I've deliberately let them be for a while as I get to un...
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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: Towel rails. An unexpected final hurdle
I had a similar issue but convinced the installer to le...
By Pie_Eater , 30 minutes ago
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Cliff, welcome to the forum. You’re running into one ...
By Mars , 37 minutes 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 , 49 minutes 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 , 1 hour ago
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RE: Newbie out of her depth – Samsung AE120RXYDEG 12kW heat pump
@jamespa @bontwoodyHeat loss calculations found and att...
By BAMi , 3 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 , 4 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 , 4 hours ago
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@robs useful thread! Thanks for sharing - Octopus are c...
By big_si , 4 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 , 6 hours ago
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@eliuccio Unfortunately, whilst I agree with a lot of...
By JamesPa , 7 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 , 8 hours ago
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RE: Heat Pump Sizing & Installation Costs
Perhaps useful to have installed date too? To get conte...
By Tim441 , 12 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 , 1 day 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 , 1 day 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 50 minutes ago
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Heat Pump Sizing & Installation Costs
By Mars 14 hours ago
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Volumisers in Heat Pump Systems: Does Placement Matter?
By Mars 15 hours ago
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SolarPV tables / online calculator
By MichelleC 22 hours ago