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Last seen: Aug 13, 2025
@jaket yes curve too low there are plus and minus symbols on the front screen turn it up a few degrees you don’t need to adjust the whole curve this w...
@jaket If you have all the circuits in the house calling for heat then unfortunately the heat pump can’t modulate down any further so it has to start ...
@paulrlondon fyi flow rate range for the 11.2kw unit is 14.4-32.1L/min
@jaket I would increase the tank temp you are heating to, 45C is too low if your showers getting cold after a few mins
@jaket yes leave at 5 19 litres per min is fine mine runs at a similar rate
Here is my flow for an hour yesterday afternoon it ran like this all day. just noticed you posted flow rate was that from the running information me...
@jaket Hi I have an ecodan with ufh and rads and Heatmisers. You can get it working well. It will just take some tweaking. What you will probably ...
180sqm detached house built in 2000 so insulation isn't bad but isn't great either, 8.5KW Ecodan, UHF downstairs retrofitted so little thermal mass, R...
@crimson with the flow and return temps you are getting they are very wide DT13, this suggests not enough flow rate in the heat pump circuit is there ...
@crimson Ignore my previous post not enough caffeine. DT20 is possible but your heat pump is going to be running at a relatively high temperature so...
I'm no expert but I think you are using the correction factors incorrectly, your rads can't output more heat at a lower DT, so even if you do have a d...
@dannymoss23 Do you have a Mitsubishi preplumbed cylinder, if you do and you have have already stated you have 2 zones, 1 for UFH and 1 for rad...
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RE: Seeking ideas / information / commiseration - Pure Drive
That may well be correct. However we don't have enoug...
By Transparent , 3 minutes ago
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@cathoderay up until the last few days the rads have al...
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RE: Electricity price predictions
@jamespa I don't believe I have said anything other tha...
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RE: Indevolt Batteries UK Support & Info Thread
That's puzzling me too. Along similar lines ( forgive...
By colinc , 3 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 , 17 hours ago
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I cant, but @editor probably can if you tell him roughl...
By JamesPa , 18 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...
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@transparent thank you. Be Thursday before my mate giv...
By David999 , 22 hours 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 , 22 hours 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 ...
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread
Ah, not so useful then For sure, hopefully before ...
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Thanks @editor I appreciate that things go wrong, bu...
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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...
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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...
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RE: Summer usage. Why is my Vaillant Aerotherm using so much energy on "heating"?
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RE: Renewables & Heat Pumps in the News
Critics and naysayers will be negative whatever the gov...
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RE: Microbore heat pump installs
In principle you are almost certainly right, but in pra...
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