Last seen: Dec 1, 2025
@lfranklin ah, yes, you'll need a smart meter for Cosy. My PV export tariff is 'Outgoing Octopus 12M fixed' their standard 15p/kWh fixed arrangement. ...
Have you got a variable rate tariff and have scheduled the Growatt battery to charge during cheap rates to supply during standard and peak rates? It's...
@katcesca what flow temperature has your MCS estimate based and sized the design on? This is THE most fundamental element of an ASHP efficiency and th...
@marvinator80 you got lucky on the SAP EPC lottery! I went up from a D to a C. My heating and hot water scores both went DOWN after ASHP and solar wit...
@mike-patrick - click on 'document' @ronin92 - clearly whoever is in charge at the BRE and tasked with preparing the SAP methodology for heat pump e...
@marvinator80 ahhh, right, check the cylinder stat. Here's the info for that stat in Appendix A p.30. When the stat is demanding heating, the green LE...
@hughf refrigerant charge quantity is critical. The best place to charge the unit is in the factory when built, where equipment is calibrated and cont...
I would use the ASHP for HW generation, as, even accounting for the fairly slow pre-heat time when the flow through the ASHP cools a bit before warmin...
"He's got heat meters fixed to the pipework. Room temperature monitors" @mjr they got thrown under the BUS. The current BUS scheme requires no energ...
@andris EPCs can be a load of rubbish, my EPC when I was heating by oil rated my main heating and hot water was 'average' with a boiler that was 80% e...
@marvinator80 sounds all good. Pleased it has gone well. My wallet-busting 260kWh consumption last week was offset a little by a decent 60kWh solar PV...
@derek-m good point. I had an iboost fitted 6 months ago. More recently had a 6.5kWh Growatt battery fitted to my Solar PV. I have found that charging...
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Our journey through Octopus tariffs 2020-2025
Everyone will have a different setup, usage, needs etc ...
By Tim441 , 12 minutes ago
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RE: Replacing my 18 month old Hitachi Yutaki ASHP
I dont think it tells us anything else other than the t...
By JamesPa , 39 minutes 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 , 49 minutes ago
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RE: Are Water Companies Delivering Bricks?!
I also couldn't do without a water softener when I live...
By Morgan , 1 hour 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 , 1 hour ago
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RE: Electricity price predictions
My apologies. I should've written "The number and dep...
By Transparent , 2 hours ago
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RE: Solar panels on side of house to heat water
I wouldn’t try a direct linked system of DC at all sinc...
By Judith , 2 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 , 2 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 , 2 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 , 2 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 , 3 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 , 11 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 , 13 hours ago
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RE: Commencing on an ASHP Installation Process
@sheriff-fatman It's also worth highlighting that th...
By Lucia , 14 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 , 17 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 , 19 hours ago
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RE: Solar Power Output – Let’s Compare Generation Figures
@toodles Same here! This month 187kw.
By Andris , 19 hours ago
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@jamespa Ah, they do indeed do firmware updates very oc...
By Toodles , 24 hours ago
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I’m trying to rule out a fault, could owners of above c...
By Unsure , 1 day ago
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RE: Jokes and fun posts about heat pumps and renewables
And I thought I was the one with the taxi on speed dial...
By Majordennisbloodnok , 2 days ago


