
Last seen: Aug 4, 2025
Well I'm guessing that the temp sensor is positioned where it has access to the surrounding air, but isn't within the air-stream which gets drawn thro...
This joke's on me. It's often the case that I use a 3D printer to create a few components needed for an 'energy project'. These can sometimes take...
The actual outside temperature might not be below freezing...... but the heat-pump controller thinks it is.That's what triggers the BUH. Why not jus...
Disabling a feature could just be masking a poor solder joint in a connection to a sensor! Wouldn't it be better to narrow down the search first bef...
Whatever we're looking for is an intermittent fault.It occurs, and then goes away. If you look at the display a few hours later, everything might ap...
It doesn't matter what the manual states about the BUH operating only rarely.That's just declaring what it's meant to do.But we're looking at a fault ...
Do you have any record of the DHW tank temperature during these night-time antics? 240-litres looks like a great place to dump a shed-load of energy...
Ok. I'm just checking whether there was any manual intervention at 8am-ish on Friday.As you say that there wasn't, then something has occurred to knoc...
Are those yesterday's readings?Or last Friday's? What 'event' occurred at 8am which might account for the sudden drop in electricity usage?
And what perceived benefit does one get from spending £550-ish on such a pump?! Wilo's technical spec suggests that it doesn't run at -9°C but I'm...
Ouch! So why did the installer use that specific pump?Wilo have other models which would've used less power. Do you have long pipe runs?... small ...
@ashwinjm - I have (mainly) suspended timber floors...... and lots of photos of UHF being installed. If you'd like a new topic, specifically about U...
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RE: 300 Liter Tank - Do I have to heat it all?
Cross references for @martingale Background discussi...
By Transparent , 9 hours ago
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RE: ASHP heat output monitoring
Thanks. It may be just Vaillant, not Grant, I just had ...
By cathodeRay , 9 hours ago
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RE: Share Your Experiences with Heat Pump Manufacturer Support
@terry1812 Oh Good! Pleased to help if I can! Regards, ...
By Toodles , 19 hours ago
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It's unclear to me how the Smart Control project work b...
By Transparent , 19 hours ago
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RE: Have Consumers Been Lied to About the Efficiency of Heat Pumps Made in China?
@pavel, this isn't about discrediting Chinese products....
By Mars , 20 hours ago
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RE: Why do we need pressurised systems?
@old_scientist If that were the case (and it might well...
By Toodles , 3 days ago
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RE: Solar Power Output – Let’s Compare Generation Figures
We had an excellent four months (11/3 to 15/7) generati...
By JulianC , 3 days ago
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RE: Is this just haze or something more?
I think the present somewhat cooler hazy days show the ...
By Judith , 3 days ago
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RE: My misgivings about installing ASHP and solar panels via the ECO4 scheme...
All noted and accepted and as I say I am sorry that you...
By JamesPa , 4 days ago
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I think it is very much me that is sitting outside the ...
By Grantmethestrength , 4 days ago
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RE: Replacing Refrigerant on Mitsubishi Heat Pump
@davidalgarve It should just be recovered by both servi...
By dgclimatecontrol , 5 days ago
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RE: Who's your electricity provider and what's your tariff?
Aggregators have been recognised for many years, and it...
By Transparent , 5 days ago
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RE: Help me keep the faith with my air source heat pump installation
Great news I edited my previous post (probably af...
By JamesPa , 5 days ago
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RE: Double or Triple Glazed Windows?
@toodles Glad to hear things are progressing well for y...
By TRBob , 5 days ago
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How to waste energy (and time) playing with AI.
A friend of mine who subscribes to an AI service was ex...
By Toodles , 5 days ago
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RE: Heat Pump Books For Beginners – Bodge Buster & From Zero To Heat Pump Hero
@topher you’re more than welcome to, yes. I’ll send you...
By Mars , 6 days ago
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RE: Fitting new shower valve ..........
I’ve never taken a chance when fiddling and changing ou...
By Mars , 6 days ago
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You should contact the council and report the unsatisfa...
By JamesPa , 6 days ago
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