Last seen: Nov 25, 2025
I just came across this: It claims that an ASHP makes an EPC rating worse than if the same property were heated with gas, because of the way the...
Derek, Sorry for not following up earlier on our conversation, but I have only just had an opportunity to have another look at my ASHP controller se...
@derek-m Derek, I'm based near Witney, Oxfordshire. Skype account uses same email addrres as here mjpatrick@protonmail.com 10am tomorow will ...
@derek-m Yes, that’s very kind of you. I can do Skype. I’m next working from home on Friday so that would be a good day. Next week I’m home on Tu...
@derek-m A big reason why, 5 years after installation, I'm still trying to optimise the system is my lack of confidence in local heating engineers....
Derek, I increased the room thermostat by 1C in one room (all 13 would have been too much) and left it for an hour. It did appear that the temperat...
Derek, The system has individual thermostats in each room, which are independent of each other so can each have their own timing schedule. I've no...
@derek-m Derek, Sorry for the delay but I've now read the remote control My instruction manual is May 2016 but I think table 10.3 is the same...
@derek-m Derek, I haven't forgotten this, but am busy with work and it will take me a while to dig out the documentation. If it's possible to i...
@derek-m Derek, The COP rating on the label on back of the pump is given as 2.66 based on Air at 7 deg and water at 55 deg. The total heat loss...
@derek-m Here are my charts, cut and pasted from an Excel spreadsheet. Mike
Latest Posts
-
RE: Octopus Cosy Heat Pump Owners & Discussion Thread
TC Thermostatic Radiator Valve TRV Plastic Decorators S...
By Toodles , 9 minutes ago
-
RE: Ecodan unable to hit legionella target temp - what's the consensus?
UPDATE: Thanks everyone who commened with suggestions h...
By 9jwr9 , 5 hours ago
-
-
RE: ASHP sizing - value of Heat Transfer Coefficient
@toodles Hi, my friend recently made a video about heat...
By HeatPumpMe , 1 day ago
-
How long will your energy contract last?
Some heat pump tariffs don’t run as long as a heat pu...
By Toodles , 2 days ago
-
@morgan They are unsupervised these days, can’t get the...
By Toodles , 2 days ago
-
-
RE: Setback savings - fact or fiction?
Exactly. We only need to compare conditions, to decide ...
By cathodeRay , 3 days ago
-
RE: Balancing financial efficiency and comfort using the Octopus Cosy tariff
I found because I have very low heat loss I can set bac...
By RadWhisperer , 3 days ago
-
RE: Need Help Optimising My Rushed ECO4 Install: 12kW Bosch Heat Pump
Welcome @mickamills We too have an oversized 12kW Sa...
By Old_Scientist , 4 days ago
-
RE: My Powerwall 3 Consumes 3-4 kWh/Day in Self-Consumption: Is This Normal?
@caron I can confirm that the power usage of the PW3 is...
By Old_Scientist , 4 days ago
-
RE: Speedcomfort radiator fans
Thats true, but having tried (and succeeded) in constru...
By JamesPa , 4 days ago
-
RE: Solis S6-EH1P8K-L-PLUS – Why I Chose It and What I’ve Learned So Far
@bash brilliant, thanks for the feedback
By energy9165 , 4 days ago
-
RE: Heat Pump Heats the House… But It’s Not Cosy. Emitter Changes or System Tweak?
@alastair There I was, feeling grumpy, he said “Cheer u...
By Toodles , 4 days ago
-
RE: Grant Aerona: Is there a setting to keep the 2-port valve open during pump blockade
Depends on OAT. Mine cycles at OAT>10 and of course...
By JamesPa , 4 days ago
-
RE: New Fogstar 15.5kWh upright solution
@transparent My conclusion is as you have noted, tha...
By Bash , 4 days ago
-
RE: Mitsubishi Ecodan R290 10kW performance
And to you too. Wishing you a very enjoyable festive s...
By Sheriff Fatman , 4 days ago
-
RE: External pipework insulation
They do? But that isn't apparent from the photos we'r...
By Transparent , 4 days ago
-
RE: Say hello and introduce yourself
@velcro welcome to the forums. Please feel free start a...
By Mars , 5 days ago
-
Daikin EDLA11D3V3 DHW Settings
I have a newly installed EDLA11D3V3 which I'm still get...
By Velcro , 5 days ago
