Last seen: Jul 26, 2025
If they arent permanently open then yes they would cause a problem (unless they are all wired to close simultaneously when the DHW comes on - instead ...
Sofaik all others do the same, ie they operate the refrigerant circuit in cooling mode to effect defrost. They thus cool the house and warm the heat ...
Are you sure. Where does the defrost energy come from on that case? Most stop the fan but leave the primary pump going thus extracting the defrost ...
Personally I would want them inside the heated envelope if possible. Then the heat loss is useful during the heating season. Obviously its a bit sit...
I persuaded my installer that heat loss from the adjacent hallway plus steam when you actually take a bath/shower was sufficient (in order that we did...
@sandman1600 just looking at the plots here it looks to me like there is in fact a range of outside temperatures where it does not cycle, casting doub...
If you think your heat loss is between 4.5 and 8.5, the r290 is probably a goodun because of its.unusually large modulation range, due to having two c...
Further to the above here is a template for what you might say if you wish to decline sign off. ? indicates info from melcloud or elsewhere, or refer...
I should add that I still think you can get it working well as it is, so if you don't think it's worth trying to press the installer then let's focus ...
@sandman1600 Whilst I agree with hat you may end up batch heating at a higher ft, at this stage I would continue to get to the ft that just heats th...
That's important. Hold onto it, gather any evidence. If somehow that can be combined with operational evidence then you may have a chance. Does m...
If you are going to have the discussion with the installers then I have some thoughts: it may be worth waiting until you have more data and have t...
Latest Posts
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RE: No-code, plug-and-play monitoring for your heat pump
By Grantmethestrength , 15 hours ago
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@eliuccio good to hear you’re happy with the install. A...
By Mars , 1 day 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 , 2 days 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 , 2 days 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 , 2 days 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 , 3 days ago
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Compressor and Evaporator Stratification
I have had a few issues with my Hitachi spilt heatpump ...
By trebor12345 , 3 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 , 4 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 , 4 days ago
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RE: Is your heat pump insured?
To make things clear, lots of insurance companies cover...
By Lucia , 4 days ago
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RE: Boxt Heat Pump Installation Experience
@adrian any updates since installation? How is it perfo...
By Ashfp , 4 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 , 5 days ago
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@seatonian got your email. Will connect you with a reco...
By Mars , 5 days ago
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@downfield and @toddles, this isn’t in the settings cur...
By Mars , 1 week 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 , 1 week 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 , 1 week ago
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RE: Compressor attempts start but fails - Nibe Fighter 2005 8kW
@skyefarmer amazing. Well done!
By Mars , 1 week 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
