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Last seen: Jun 27, 2025
Have you had a chance to look at hydraulic diagram 6.1.1 in the thermal store manual? The thermal store is not part of the CH loop at all, it’s sole p...
Awesome, that should see a real benefit in performance. Are you running on just the internal midea pump or do you still have ‘Pump-O’ wired up and run...
Absolutely... Use the room stats as hi-limit stats only, set them a couple of degrees above what you find comfortable. Then adjust the weather compens...
Provided the system is plumbed as per 6.1.1 then it works as follows: When in DHW mode, the hot working fluid travels from the ASHP to 3 port valve ...
@marzipan71 Wow, that's quite the complex beast isn't it. Two F-Gas circuits, an r410a to r134a heat exchanger and another compressor inside the indoo...
Plumbing schematic for this system is figure 6.1.1 for anyone who's interested.
User manual for the 500Ltr solar thermal compatible TS is attached. Interesting bit of kit, not sure how well suited it is for a ASHP install because ...
I assume, from the picture, that the 500ltr TS has a coil for generating your DHW in it (with what appears to be 29 ltrs capacity)? If so, you're goin...
Absolutely you can run the mixed UFH circuit at a different (albeit always lower) temp than the unmixed circuit. The blending valve that you can see i...
For the benefit of the tape, the way your system is setup @marzipan71 is that you have a mixed (for ufh) and an unmixed pump group, connected to a hor...
I should have clarified, an ASHP install with a single emitter type (rads or ufh) would not require a separate weather comp’d mixer. With different ...
you wouldn’t need a weather compensated mixing valve in an ashp install as the ashp already has weather compensation. This is for the edge case wher...
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For this reason as said before I would just turn it off...
By benson , 15 minutes ago
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RE: Electricity price predictions
@jamespa I definitely made full use of the Cosy tariff ...
By ChandyKris , 31 minutes 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 , 54 minutes 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 , 5 hours ago
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RE: Indevolt Batteries UK Support & Info Thread
That's puzzling me too. Along similar lines ( forgive...
By colinc , 8 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 , 22 hours ago
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I cant, but @editor probably can if you tell him roughl...
By JamesPa , 23 hours 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...
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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...
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