
Last seen: Jul 24, 2025
Ah... well that seems to prove the case. In discussions with senior engineering managers at NGED, they have cited harmonics from heat-pump installat...
Ah... that's not how I thought a (domestic-sized) 240v AC pump was operated using PWM. I expected the basic 50Hz to still be applied, but that it wo...
Why? Please expand on this. Yes I understand that an (AC mains) electric pump requires a certain amount of electricity to get it started and then ...
If by 'meter' you mean the household Smart Meter or an MCS-approved meter on the mains-output side of an inverter, then there's no problem with those ...
I doubt those 'Victron' bus bars are different to scores of others available with current capacities up to 500A Personally, I've decided to ma...
MC4 connect/disconnect tools can be bought cheaply online.But beware that the cheaper ones are likely to be sent direct from China, with a resulting d...
Current limiting in what part of the system? In the BMS unit of the Mason box whose battery has the lower capacity? My experimentation suggests th...
You're quite right to ask for clarification, @bretix My comment about a second device being installed was made in response to what @robl had just po...
I tend to agree. I have been doing a lot of experimentation with busbars coupling batteries and inverters over the past year.My approach also incorp...
To identify what is going wrong with so many of our heat-pump installations, we need the range of approaches and analysis which is occurring in this t...
It is likely that each panel connects into its Solar Edge optimiser using MC4 plug/socket. Then the optimisers are joined into a string using anothe...
That's a very low figure for an inverter with integral off-grid operation. I wonder if that's because they have good monitoring with temperature sen...
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Latest Posts
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RE: No-code, plug-and-play monitoring for your heat pump
@mphb the only controls I'm struggling to locate on HA ...
By benson , 1 hour ago
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@eliuccio good to hear you’re happy with the install. A...
By Mars , 7 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 , 23 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 , 1 day 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 , 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 , 5 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 , 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