Last seen: Jan 8, 2025
I thought the COP would be better with the bigger output at these high demands and it is. If the COP stays at 2.4 then the 16kW should deliver 12.4kW ...
It looks like that, at the design ambient temperature, the ASHP is unable to achieve the design flow. It certainly sounds like your ASHP is under-powe...
It looks like that, at the design ambient temperature, the ASHP is unable to achieve the design flow. It certainly sounds like your ASHP is under-powe...
Most ASHPs can modulate down to about 30-40% of their nominal rating. So for a 10kW ASHP, 3kW. If the target flow is 35 deg and the ASHP only needs ...
@batalto so with the LLH, the ASHP is using more energy but delivering the same. Is this because energy is being emitted from the LLH like a radi...
That's encouraging. To save me copying the numbers, is the energy delivered about the same before and after? The consumption is lower and the COP loo...
Lucas, Good suggestions so far. Can you give us an idea of the size, age and type of house? It's hard to say whether your costs are high without k...
I'm sure if their new car had visible damage, most owners would (rightly) insist on it being fixed or replaced. Installers who put in ASHPs with dama...
@cathoderay I have the same issue and I just switch off between 12 and 5am. My house is back up to where it should be in 2-3 hours in the morning,...
It's the other flows, not the boiler ones you should be looking at. I think 'boiler' = immersion in Mitsubishi. Don't worry about the system off wa...
As long as you don't close off too much of the system you can safely turn down a bedroom TRV. If you shut down too many you'll reduce demand and you...
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OOh thats nasty. Unless your installer overpressurise...
By JamesPa , 31 minutes ago
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RE: Humming sound on new install.
@adamk Yes, Live Monitor on the 'HPAI' (not the Senso...
By JamesPa , 39 minutes ago
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RE: Is a Valliant Inline 6kW heater a BUS buster?
Much of that is true in principle, but its not likely t...
By JamesPa , 12 hours ago
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RE: Heat Pump Servicing & Maintenance – Good Value or Rip-Off?
@dgclimatecontrol I attach the responses from 2 potenti...
By pash44pump , 16 hours ago
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I didn't want to say that, bus since you have said it n...
By JamesPa , 16 hours ago
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RE: Midea ASHP – how to set weather compensation
Mostly, I think, but with some caveats. I set the TI...
By cathodeRay , 19 hours ago
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RE: Is Your Broadband Router the Weak Link in Your High-Tech Home?
I have been working on network resilience for a while. ...
By Scalextrix , 21 hours ago
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RE: Buffers, hot water and cooling
@dgclimatecontrol thanks, that's helpful.
By JamesPa , 2 days 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 , 2 days 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 , 2 days 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 , 2 days 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 , 2 days 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 , 2 days 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 , 3 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 , 3 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 , 3 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 , 3 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 , 4 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 , 4 days ago