Last seen: Jan 14, 2025
cynical answer no I wouldn't expect a "typical" ASHP installer to have done a system drawing, and certainly not one that you've said has been "poor". ...
hi danny you mention pumpS , does that mean you have more than one? If yes, do you have a system diagram or an understanding of which pump is circul...
@rich a UPM 25-85 130 is fairly beefy, it may well be enough to run the whole thing. I run a 210m2 house on a single UPM 25-95 130.
@cathoderay your cylinder mfr quotes 2kwh/24h = 83 watts. (FYI Mine's a 300L advance appliances, 69 watts, B rated) the maths is easy, umpteen onlin...
@rich seems to me like you should be able to do what you have drawn, yes the LLH is ruining your COP based on those temps you've measured. the fact...
this shouldn't be the case. If its modern, it has to be well insulated or they can't sell it. Mine has only dropped 1C over 8 hrs. Have you insulated ...
I have a 16, which is the 12 without the de-rating. I wouldn't worry about noise as a primary decision criteria. It chugs away somewhat when its sub z...
@dropbear there's an element of confusion in your write up. you talk about the 300L cylinder being preheated to 65 and then heat with something else t...
@transparent ditto, exact same behaviour , on almost all page loads from this forum today and yesterday. at first I thought I might be having an ISP i...
getting wordpress / site not responding errors quite often - every few days. Too many users, site overloaded?
mine too. didn't think it was quite cold / humid enough but clearly it is. defrost after 4hrs running. the pink highlight is about 0953, when perfor...
@cyrusir if you use an ESP as the modbus master, the ESP is the only thing that has to be wired to the MIM module. the comms from the ESP to your HA ...
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RE: Humming sound on new install.
Roof trusses and dry lined ceilings are a massive sound...
By AllyFish , 5 minutes ago
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RE: Midea ASHP – how to set weather compensation
@jamespa is right, typically they are far from linear, ...
By cathodeRay , 58 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 , 2 hours ago
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Funny story Graham, when I started looking to ...
By DREI , 9 hours ago
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RE: Buffers, hot water and cooling
@dgclimatecontrol thanks, that's helpful.
By JamesPa , 13 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 , 15 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 , 16 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 , 18 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 , 18 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 , 18 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 , 24 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