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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RE: Buffers, hot water and cooling
@jamespa Your reasonably close! Especially with warmer ...
By dgclimatecontrol , 35 minutes ago
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RE: Who’s Caved and Switched the Heating On Already?
My heating isn't 'ON' yet, although it is firing up in ...
By Morgan , 53 minutes ago
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RE: Havenwise App Help & Forum Support – Get the Most from Your Heat Pump
@damonc If the heat pump controller is in a suitable ar...
By HCas , 2 hours ago
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RE: Midea ASHP – how to set weather compensation
The midea has a number of pre programmed WC curves (wit...
By benson , 3 hours ago
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RE: COP is not the only measure of efficiency
If that's the case then you are right to be sceptical, ...
By JamesPa , 5 hours 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 , 8 hours ago
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RE: Heat Pump Servicing & Maintenance – Good Value or Rip-Off?
@ashp-bobba Well done for stepping in where most would ...
By JamesPa , 9 hours ago
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RE: Vaillant aroTherm Plus 10kW thoughts?
@realevil the fans and fan speed / coil size (height, w...
By ASHP-BOBBA , 19 hours 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 , 19 hours 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 , 23 hours 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 , 1 day ago
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RE: Heat Pump SCOPs – The Truth Might Not Be What You Think
@scalextrix Name plate capacity
By HCas , 1 day ago
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RE: Solar Thermal DHW and ASHP
I was originally contemplating a solar thermal installa...
By jamespetts , 1 day ago
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RE: Solar Power Output – Let’s Compare Generation Figures
My system installed in July 2024 has produced 6.4mWh in...
By jamespetts , 1 day ago
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RE: A Customer's Lessons Learnt from a Heat Pump Installation in a Large House
@judith thanks for your suggestions. Starting from col...
By GrahamF , 2 days ago
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RE: Inventor (Midea) Heat Pump short cycling advice
I switched to "fan coil mode" to be able to set water t...
By immunity , 2 days ago
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RE: DESNZ doing a survey which asks the right questions!
Without a survey their only source of data is probably ...
By JamesPa , 2 days ago
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RE: Can you help with our research: solar panels, EV chargers, home batteries, heat pumps?
Just done your survey!
By Judith , 3 days ago
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RE: Failing heat pump system - seeking thoughts on a rebuild
@cleardene-ashp just thinking about your issues here. Y...
By Judith , 3 days ago