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Last seen: Apr 4, 2026
@alfapat OK. thanks for the information. It looks like your system was designed to run at 50C when at -4C outside. The yearly electricity use for s...
@alfapat Sorry, missed the (large) tank comment 🙂 OK if the original install was for 25 kW then the 16 kW alone probably isnt oversized, but it su...
@alfapat Thats the document! unfortunately I cant read it from the images, they are probably compressed for the forum. I will pm you my email address,...
@alfapat So you should have been given the heat loss calculation when you had the heat pump installed. It has to be done by the installer. I think t...
@johnnyb So here is a day where I was cycling although not frequently The interesting bits are just as the heat pumps starts up again. Flow temper...
@johnnyb If its PWM controlled you should have two cables running to it, one for power and the other for the optional PWM control. Not all pumps can d...
@mike-h @johnnyb @technogeek So my pump is PWM controlled from the control box, but I dont know if the thermostat controller influences that at all....
@alfapat So thats a big bill! I cant help thinking that given the insulation you describe, you should be doing a lot better. Can you find your suppose...
@alfapat So the absolute flow temperature isnt important. Just how it makes the room feel. If its been 15 hours and you still havent made the desired ...
Here are my settings, I think the 201 settings in the video might be backwards. You can always check by feeling if your radiators are hotter in colder...
That is an older controller you have so the procedure might be different unfortunately
@alfapat this shows how/p> I have a feeling though that he puts one of the figures in the wrong way around in the video though
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For this reason as said before I would just turn it off...
By benson , 2 hours ago
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RE: Electricity price predictions
@jamespa I definitely made full use of the Cosy tariff ...
By ChandyKris , 2 hours ago
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RE: Installer Fitted 9kW Instead of 11kW Heat Pump and Changed MCS Paperwork - What do I do?
@judith unfortunately, I completely missed your reply u...
By LeJamaisContent , 2 hours ago
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RE: Seeking ideas / information / commiseration - Pure Drive
That may well be correct. However we don't have enoug...
By Transparent , 6 hours ago
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RE: Indevolt Batteries UK Support & Info Thread
That's puzzling me too. Along similar lines ( forgive...
By colinc , 9 hours ago
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RE: Rate the quality of your heat pump design and installation
@editor Thank you. I joined because I really liked your...
By claireisamazing , 24 hours ago
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I cant, but @editor probably can if you tell him roughl...
By JamesPa , 1 day ago
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RE: UK DIY Battery: SEPLOS 48V 200Ah x2 + Sunsynk 8K – Safe Installation for Garage Conversion
@madsid I don't quite understand what extra you need...
By Bash , 1 day ago
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@transparent thank you. Be Thursday before my mate giv...
By David999 , 1 day ago
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RE: Peak Energy Products V therm 16kW unit heat pump not reaching flow temperature
@johnd our Peak system is no more. The installer cam...
By DaveC , 1 day ago
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Hah! Well I guess we're all in the realm of conjectu...
By Transparent , 1 day ago
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These are a bit hard to read but the information is in ...
By bobflux , 1 day ago
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread
Ah, not so useful then For sure, hopefully before ...
By JamesPa , 1 day ago
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Thanks @editor I appreciate that things go wrong, bu...
By venkman , 1 day ago
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RE: Home energy storage & battery register
AC coupled Pure Drive 10kW battery Solar PV Solis P...
By Little Lights , 2 days ago
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RE: Air source heat pump roll call – what heat pump brand and model do you have?
Forum Handle: ispookie666 Manufacturer: Vaillant Mo...
By ispookie666 , 2 days ago
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RE: A2A vs A2W: Which Heat Pump Would You Pick?
I'm fairly new to the forum and have not voted. Back...
By ispookie666 , 2 days ago
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I am seeing an increasing number of occasions when my G...
By DavidAlgarve , 2 days ago
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RE: End-of-Life Heat Pumps: How Do You Dispose of an ASHP in the UK?
@editor Thanks Mars. I look forward to the subsequent ...
By DavidB , 2 days ago
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RE: Anyone concerned about GivEnergy?
Fair enough. Its interesting that opentherm (for boil...
By JamesPa , 2 days ago
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RE: Brand and installer questions for ASHP
A tank solely in the return (upstream of where the retu...
By JamesPa , 2 days ago
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RE: Home automation and the cloud; is there a better way?
+1 It's not just cloud though. Many devices have repla...
By bobflux , 3 days ago
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RE: Summer usage. Why is my Vaillant Aerotherm using so much energy on "heating"?
So the red bars are 'DHW' and the yellow bars 'heating'...
By JamesPa , 3 days ago
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RE: Renewables & Heat Pumps in the News
Critics and naysayers will be negative whatever the gov...
By JamesPa , 4 days ago


