Last seen: Oct 1, 2025
@johnmo It appears you do not value expertise or experience. Do you put your own fillings in your teeth? I think not, you pay an exorbitant rate for a...
All 3 drawings are hydraulically separated and are all buffer tanks. The third does not show a pump in the heat pump, which there has to be one, or wa...
@ecobaker Your system volume will be fine, just make sure you get the right flow rate with all TRV's open and at least 8 l/min with all closed. Leavin...
Hi It does not matter which side the pump is on, it is a circuit. You must however make sure that you have enough open zone system volume and flow. ...
@derek-m So would we all, but beggars cannot be choosers 😀
@lucia In my view, the Daiken is a better unit as it controls the Delta T of the heating water (The Vaillant does not ), and the controller is very mu...
@derek-m Daiken capacity charts
@jamespa If flow temperature was the only variable, you may have a point, however, there are tens if not many hundreds of variables that need to be ta...
I will give you a clue and only 1 of many reasons, for every 1 Degree you move the flow temperature up from source (outside temperature), you add betw...
@JamesPa Do you tell your surgeon where to cut? I think not, however when things go wrong, and if they did listen to you, they would still get the bla...
You are correct, the house was 100% under floor heating so no emitter changes, just redesigned and modified for correct operation. For the customer, ...
Please do not believe any SCOP figures, they are calculated laboratory figures and bear absolutely no resemblance to real life whatsoever. If you have...
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RE: Replacing my 18 month old Hitachi Yutaki ASHP
@jamespa I have good news. I now have the instructions...
By trebor12345 , 3 minutes ago
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RE: Solar panels on side of house to heat water
Yes, I have one in my Thermal Store. In the days befo...
By Transparent , 24 minutes ago
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RE: Havenwise App Help & Forum Support – Get the Most from Your Heat Pump
@simonwig Thanks for the bump. Not sure why I didn't se...
By HCas , 1 hour ago
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RE: Are Water Companies Delivering Bricks?!
...which in turn reminds me of a Thelwell cartoon I onc...
By Majordennisbloodnok , 1 hour ago
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RE: Our journey through Octopus tariffs 2020-2025
I mentioned above "2025 move to Intelligent Go meant ...
By Tim441 , 1 hour ago
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RE: Testing new controls/monitoring for Midea Clone ASHP
@benson — thank you, that is useful information you hav...
By cathodeRay , 4 hours ago
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RE: Grant Aerona circulation/system pump staying on
My parameters are: 42 00 = 0 (so the next three value...
By MikeFl , 5 hours ago
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RE: Electricity price predictions
My apologies. I should've written "The number and dep...
By Transparent , 5 hours ago
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RE: Flow rate discrepancy between ASHP and manifold
@ashrolls Air circulating in the system will confuse fl...
By bornagain , 5 hours ago
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RE: Help…my NIBE heat pump has faulted again!
If it happens only when it gets cold then it maybe that...
By JamesPa , 6 hours ago
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RE: Grant Aerona3 - Home Assistant control via Modbus
Has anyone got past this screen to set up the integrati...
By AlanW1212 , 6 hours ago
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RE: Heat Pump Training vs. Real-World Installation
@lucia have you discoveredfor how green each of our ene...
By Judith , 6 hours ago
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RE: Diagnostic Data Needed for Repeatedly Failing Tesla Powerwall 3 System
You seem to be on the right track... Installers are rec...
By Batpred , 15 hours ago
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RE: Should Our Water Circulation Pump Be Configured to Run All The Time?
there's a detect cycle setting (4200) on the old grant ...
By damonc , 17 hours ago
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RE: Commencing on an ASHP Installation Process
@sheriff-fatman It's also worth highlighting that th...
By Lucia , 18 hours ago
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RE: Hitachi Yutaki SCombi Heat Pump - Owners
. It does but, unless there has been a firmware updat...
By JamesPa , 20 hours ago
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RE: Help me keep the faith with my air source heat pump installation
Yesterday it was chilly and the cosy6 had a Cop of 4.3 ...
By AgentGeorge , 22 hours ago
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RE: Solar Power Output – Let’s Compare Generation Figures
@toodles Same here! This month 187kw.
By Andris , 23 hours ago
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@jamespa Ah, they do indeed do firmware updates very oc...
By Toodles , 1 day ago


