Last seen: Feb 19, 2025
@jamespa Yes I totally agree with your comments and you have explained the difference between timed and thermal control very well. I haven't yet worke...
I feel that I need to defend the use of thermostats with heat pumps, particularly in the case of heat pumps that are oversized and don't modulate down...
I am not an engineer, just a Samsung ASHP owner, but everything that I have read suggests that removing the filter is a bad idea. There are two report...
This only happens if a PWM pump is fitted with the appropriate wiring - very unlikely in this case. So adjusting these settings makes no difference to...
You say that you have measured your hourly gas usage during cold days and so have a good idea of your heat load. In which case you already know your h...
@david999 What size is your Samsung? Is it 16kW? If not, 29lpm should be ample flow rate.
Hi @toodles That external insulation looks pretty poor to me, but not unlike my original insulation. Cable ties are definitely not to be recommended. ...
My 50L buffer tank made cycling worse not better. At a LWT of 33C the radiators were only getting 30C due to mixing of the flow and returns in the buf...
Yes, when the ASHP cannot produce less heat than the radiators are delivering, the return water temperature and leaving water temperature (LWT) tend t...
Hi Ian, as a Samsung ASHP owner, I have some concerns about what is being proposed. Regarding the buffer tank, I think it depends on the design of the...
I paid £14,500 2 years ago for my Samsung 12kW and this included 8 new radiators. The most important thing to get right is to have a really good insta...
You might find it helpful to have a look at another 11.2kW Ecodan on heatpumpmonitor.org. The URL is/p> They have a mixture of new and old radiato...
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Latest Posts
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RE: Newbie out of her depth – Samsung AE120RXYDEG 12kW heat pump
@jamespa @bontwoodyHeat loss calculations found and att...
By BAMi , 1 hour ago
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RE: What is the best strategy for operating a very oversized heat pump?
I think you are right to frame the question as you did,...
By Old_Scientist , 1 hour 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 , 2 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 , 2 hours ago
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@jamespa thanks, it's way off of the MCS performance es...
By big_si , 3 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 , 5 hours ago
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@eliuccio Unfortunately, whilst I agree with a lot of...
By JamesPa , 5 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 , 6 hours ago
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RE: Towel rails. An unexpected final hurdle
We have both Normal Rad for heating the room and then a...
By IRMartini , 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 , 10 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 , 1 day ago
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RE: Just one room not reaching desired temperature
Looks like this issue is now resolved. Aira installed a...
By ChandyKris , 2 days ago
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RE: Say hello and introduce yourself
Good point @jamespa But that probably strengthens @ch...
By Transparent , 2 days ago
Latest Topics
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Heat Pump Sizing & Installation Costs
By Mars 12 hours ago
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Volumisers in Heat Pump Systems: Does Placement Matter?
By Mars 13 hours ago
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SolarPV tables / online calculator
By MichelleC 20 hours ago
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By Toodles 2 days ago