Last seen: Jan 14, 2025
so a small loss per hour on an unused HW tank is inevitable, no tank insulation is perfect of course, but 0.5C is a bit high, I'm nearer 0.2C. Have a ...
@riponowl couple of questions about the data from the passivliving screenshots, to me they seem puzzling in a several places. they show your flow ...
sorry mike, I disagree if the system is split primary/secondary, with a buffer or LLH, then you have to have two pumps, it can't work without, thats...
just did a quick google: is passiving something that does online monitoring of your system via data from the heat meter? I'd be interested to see any ...
@riponowl heacol (an installer on this board) used to recommend Bellimo or ESBE when I asked him exactly this question. I went with ESBE. I think his ...
@riponowl COP of 3.5 is ok as a long term, worth keeping an eye on what it does day to day if your system has that capability (Sorry I don't know wha...
yes you have to do this. there are plenty of online tables to show how the output of the same radiator drops given different DT. most mfr's don't qu...
the flow rate dropping when you upped the ABV pressure indicates that the ABV was letting flow through, proving an alternate route. I don't know of a ...
not quite sure why you are asking this on this board as clearly a retrograde step, but anyway in the spirit of helpfulness: if your house is already p...
so there is hot water in the system being generated by the ASHP and its going somewhere, but not to your radiators.. this is a normal plumbing and hea...
@riponowl just set it to 0.6, the highest value. you don't need to "tune" it, you are not trying to balance a TRV boiler system which is what they wer...
its really hard to prove this one, because with an ASHP the difference between Flow and Return T is not a lot, not always easy to feel, and the behavi...
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RE: Is a Valliant Inline 6kW heater a BUS buster?
No I dont think you are missing anything. There is def...
By JamesPa , 10 minutes 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 , 42 minutes 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 , 1 hour 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 , 3 hours ago
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RE: Who’s Caved and Switched the Heating On Already?
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By Toodles , 3 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 , 3 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 , 9 hours ago
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RE: Midea ASHP – how to set weather compensation
I think it is a bug in the code, it comes on even when ...
By cathodeRay , 23 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 , 1 day ago
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RE: Buffers, hot water and cooling
@jamespa Your reasonably close! Especially with warmer ...
By dgclimatecontrol , 1 day 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 , 1 day ago
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RE: Vaillant aroTherm Plus 10kW thoughts?
@realevil the fans and fan speed / coil size (height, w...
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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 , 2 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 , 2 days ago
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RE: Heat Pump SCOPs – The Truth Might Not Be What You Think
@scalextrix Name plate capacity
By HCas , 2 days ago
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RE: Solar Thermal DHW and ASHP
I was originally contemplating a solar thermal installa...
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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 , 2 days 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 , 3 days ago