
Last seen: Sep 12, 2025
I am probably the only one, but I find all this stuff about freeze stats confusing. In normal but cold conditions, surely a heat pump will be running ...
Correct. This was a known compromise at the design stage: having a small old listed cottage, with low ceilings and in particular low window sill heigh...
Thanks for the clarification. I think my (S)COP is between 3.0 and 3.5. I have two ways of getting the COP: via the Midea app/LAN (midea_ac_lan), whic...
There is energy in (what the heat source uses) and energy out (what the heat source delivers to the house). My 'paradox' was that the energy in was ab...
Very possibly, but the key and only point I am trying to make is that installing a heat pump may leave you with no choice, if you want to stay reasona...
Correct (apart from "Over a set 24hr period the kWh INPUT must equal the kWh LOST regardless." which I suggest only applies in steady state conditions...
@bontwoody and @toodles - I am not comparing apples with rabbits or bananas with boomerangs for that matter, just making a simple point that, as I hav...
At the risk of sounding like a stuck record, this is is so important, that it bears repeating. In raw terms, heat pumps are about three times more e...
I think that sounds like a good empirical approach, but I am not sure my old oil boiler could be controlled to that extent, ie a low flow temp, as it ...
Your persistence does you credit. I had many problems, but for different reasons, with the whole process taking over a year from deciding to go for a ...
But don't forget what happened to me: seemingly not great changes necessitated by the way heat pumps work (chiefly, pivot (the word one loves to hate)...
I think you may know my answer (none of them, hence the suggestion we are both indulging in whatiffery. The government is just plain old deluded). R...
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RE: Midea ASHP – how to set weather compensation
It's totally dependent on the lock shield, some are ter...
By JamesPa , 18 minutes ago
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RE: Is a Valliant Inline 6kW heater a BUS buster?
Vat free applies to supply and install only no DIY.
By JamesPa , 35 minutes ago
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RE: Humming sound on new install.
One other thing, I haven’t balanced the rads yet so cur...
By AdamK , 8 hours ago
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Funny story Graham, when I started looking to ...
By DREI , 8 hours ago
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RE: Buffers, hot water and cooling
@dgclimatecontrol thanks, that's helpful.
By JamesPa , 12 hours ago
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RE: Failing heat pump system - seeking thoughts on a rebuild
I realise im overdue an update on my situation. first...
By Cleardene-ashp , 14 hours ago
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RE: Replacing Worcester oil boiler with an ASHP
@toodles thanks. I was told by the engineer that this h...
By JulianC , 14 hours ago
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RE: Heat Pump Servicing & Maintenance – Good Value or Rip-Off?
Yes Octopus only have the £9 a month service plan for t...
By NJT , 16 hours ago
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RE: Who’s Caved and Switched the Heating On Already?
@allyfish Dogs have owners - Cats keep staff. You are o...
By Toodles , 16 hours ago
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RE: What crazy nonsense are inverter limits and why are they imposed?
A week later, I'm finally picking up this comment... ...
By Transparent , 16 hours ago
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RE: COP is not the only measure of efficiency
We keep all our TRVs fully open using the whole house a...
By Old_Scientist , 22 hours ago
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RE: Havenwise App Help & Forum Support – Get the Most from Your Heat Pump
I am pleased to say at 4pm today we have added another ...
By ASHP-BOBBA , 2 days ago
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RE: Renewables & Heat Pumps in the News
To unpack this a little.... 1) how many of us in this...
By Lucia , 2 days ago
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RE: Vaillant aroTherm Plus 10kW thoughts?
@realevil the fans and fan speed / coil size (height, w...
By ASHP-BOBBA , 2 days ago
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RE: Mitsubishi Ecodan 11kw Defrosting Issue.
@morgan this can just be done by your sepecilist when t...
By ASHP-BOBBA , 2 days ago
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RE: Anyone still weathering it out with Agile?
@toodles I guess it all comes down to import averages. ...
By Tim441 , 3 days ago
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RE: 300 Liter Tank - Do I have to heat it all?
The size of DHW tank affects the anti-legionella cycle....
By Transparent , 3 days ago
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RE: Heat Pump SCOPs – The Truth Might Not Be What You Think
@scalextrix Name plate capacity
By HCas , 3 days ago
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RE: Solar Thermal DHW and ASHP
I was originally contemplating a solar thermal installa...
By jamespetts , 3 days ago