Last seen: Sep 19, 2024
Looking at the data it would appear that your heat pump is still working and maintaining the IAT during the setback period, so the setback does not ap...
Quite some time ago I created an Excel Modeling Tool with which it is possible to approximate the operating parameters of a heat pump under varying op...
Don't confuse SCOP with COP. You are indeed correct your costs will be much higher in Winter than in Summer, not just because you are using more ele...
Having just read your original post I feel there is need for clarification. If my understanding is correct, SCOP is the 'seasonal' coefficient of pe...
@graeme You may find the following link of use.
Improved insulation will have an impact on both COP and SCOP, since reducing the thermal energy demand should improve the efficiency. The simple fac...
In an ideal world a heat pump unit would contain two compressors, a nominal 12kW capacity heat pump having one compressor rated at 8kW and one compres...
@jamespa I fully agree with James that a HT heat pump will probably be no more costly to run than a LT heat pump when operating at the same LWT. I...
It is difficult to assess from just a small section of the data, but the rated capacity of a heat pump is based upon the thermal energy output, not th...
@irmartini The heat loss calculation should detail the estimated amount of thermal energy required each hour to keep the rooms at the specified temp...
Some photo's of your system may be of use in resolving your problem. Before the system was changed did you have one dual rate meter or two single rate...
As more consumers install EV chargers, Heat Pumps and even battery storage, this may help reduce phase imbalance, if they are evenly spread across the...
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RE: Is a Valliant Inline 6kW heater a BUS buster?
Fair enough. As I suggested above there are all sorts ...
By JamesPa , 5 minutes 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 , 11 minutes 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 , 2 hours ago
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RE: Humming sound on new install.
Roof trusses and dry lined ceilings are a massive sound...
By AllyFish , 5 hours ago
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Funny story Graham, when I started looking to ...
By DREI , 14 hours ago
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RE: Buffers, hot water and cooling
@dgclimatecontrol thanks, that's helpful.
By JamesPa , 18 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 , 20 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 , 21 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 , 22 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 , 23 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 , 23 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 , 1 day 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 , 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 , 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