Last seen: Sep 19, 2024
It seems I am not making my thinking clear enough. Firstly, the high 2 squared value (93%) for the regression means that, regardless of causality, and...
@cathoderay I would assume that the data within the manufacturers data tables was obtained using more precise, and correctly calibrated, test equipm...
Since the website host started 'improving' performance, it is now decidedly worse. Would you please ask them to get their act together, or hire someon...
@kev-m Hi Kev, I have not forgotten, just been rather busy.
To be a little more systematic, I think the noise measurements should, if possible, to taken at a fixed distance, and possibly specified locations, in...
What I find rather difficult to understand is the need for a 1.18 correction factor. Why would a heat pump manufacturer, even a Chinese one, spend t...
A heat pump uses the 'phase change' of a refrigerant gas to absorb thermal energy from the outside air, and then uses this thermal energy to heat the ...
The heat pump is defrosting, which is easy to tell since the Leaving Water Temperature falls below the Return Water temperature.
From what I can see the heat loss calculation fails to take account of the home being 'infested with humans', who probably produce (along with their v...
Temperature sensors are not like humans and are not affected by a draft, but they do respond to changes in temperature. The change in OAT in the upp...
Have you considered lowering the LWT, or using WC?
Looking at the upper chart, it would appear the the OAT sensor is being affected by the operation of the heat pump, so the controller will probably be...
Latest Posts
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@eliuccio good to hear you’re happy with the install. A...
By Mars , 1 hour ago
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RE: No-code, plug-and-play monitoring for your heat pump
The issue with the Grant is that you have to wire direc...
By Grantmethestrength , 17 hours ago
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RE: Is this just haze or something more?
I am not a scientist nor a meteorologist and I know the...
By Toodles , 17 hours ago
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RE: Benefits of an extra horizontal loop for GSHP
It will improve performance, but by how much depends on...
By Brendon Uys , 22 hours ago
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RE: The good, the bad and the not that great – my heat pump installation
Said I would pop back with a update. Only Mr Jesus h...
By Burtis , 1 day ago
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RE: Buffers, hot water and cooling
Thats presumably heat pump DT, what about radiator DT a...
By JamesPa , 2 days ago
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RE: Who's your electricity provider and what's your tariff?
@chandykris Exactly the same here. We now have 13.5kWh ...
By Old_Scientist , 2 days ago
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Compressor and Evaporator Stratification
I have had a few issues with my Hitachi spilt heatpump ...
By trebor12345 , 2 days ago
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RE: Wood burner with ASHP - direct air?
This depends on the size of your wood burner and size/t...
By Lucia , 3 days ago
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RE: Difficult positioning of air source heat pump
@rikiarn It's a not a buffer it's a volumiser which is ...
By Lucia , 3 days ago
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RE: Is your heat pump insured?
To make things clear, lots of insurance companies cover...
By Lucia , 3 days ago
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RE: Boxt Heat Pump Installation Experience
@adrian any updates since installation? How is it perfo...
By Ashfp , 3 days ago
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RE: Say hello and introduce yourself
Hi @seatonian - Yes, I know Seaton, and I have the Nat...
By Transparent , 4 days ago
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@seatonian got your email. Will connect you with a reco...
By Mars , 4 days ago
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@downfield and @toddles, this isn’t in the settings cur...
By Mars , 7 days ago
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RE: Homely launched for Grant Aerona ASHP control
I haven't bought the Aerona Smart Controller (£700!) bu...
By Prunus , 7 days ago
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RE: Antifreeze top up for my heat pump - is this a rip off?
For the record, Grant supply ethylene glycol for their ...
By Prunus , 7 days ago
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RE: Compressor attempts start but fails - Nibe Fighter 2005 8kW
@skyefarmer amazing. Well done!
By Mars , 7 days ago
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RE: Air source heat pump roll call – what heat pump brand and model do you have?
Ebac 5kw - Monobloc R32. Developed and made in UK - Mit...
By marcinwloch69@gmail.com , 1 week ago
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RE: Is a Valliant Inline 6kW heater a BUS buster?
Just another thought - it might be worth thinking about...
By JamesPa , 1 week ago
