Last seen: Apr 7, 2025
Why do buffers get such a bad press? They aren't evil, they're just not properly designed. I buffer should hold a volume of heat and absorb swings ...
@JamesPa OK, I'll give it a go (no promises), point me in the direction of what you're trying to solve. Edit: Just had a thought, one technique I u...
@cathoderay Ah OK, sounds like an interesting way to observe heat loss. I didn't mean to step on people's toes. I'm looking forward to seeing more d...
Heat transfer through objects can be determined by the equation: Q = U.A.DT Q = Energy transfered, kJ U = Heat Transfer Coefficient, kJ/m2/C A...
A slight distraction: But just to show what high temperature heat pumps can really do! Bob
Ah....yes, sorry. The spreadsheet is actually a generic calculation. My comment "the ASHP power at 12kW" was me trying to say "I've limited the inpu...
I find myself hoping for cold weather and more data 😉 Bob
Yeh...those are them 🙂 Bob
@transparent Yes, all those reasons crossed my mind when I was designing the original system. To answer your original question, please see the attac...
@cathoderay It's great your house is now getting too warm, we're making progress. It looks to me as though the average ASHP power is higher with the...
Sure, here's bunch of pictures. The plate exchanger is shoe horned into the back of the airing cupboard, it's not easy to get photos of. ...
@Transparent it's an interesting proposal. I don't think the energy balance quite works. The radiators and hot water tap remove energy from the sys...
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Had another try with the "customer support" of my ev ch...
By Batpred , 4 hours ago
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RE: Solis S6-EH1P8K-L-PLUS – Why I Chose It and What I’ve Learned So Far
@batpred Thanks. Well I didn't know the Solis dongle...
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread
They certainly commission their Cosys to work like that...
By AndrewJ , 5 hours ago
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RE: A2A vs A2W: Which Heat Pump Would You Pick?
@editor Yes BUT that was 3 years ago installed in Janua...
By rob heatpump bob , 6 hours ago
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Thanks for your response. I have UFH downstairs and ...
By GeorgeA , 7 hours ago
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RE: Electricity price predictions
I do like the Nesta articles generally, including the p...
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RE: Grant Aerona Short Cycling
Hi, I have a Grant 10kW (nominal 9kW for the UK), whi...
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RE: Home energy storage & battery register
2 days uninterruptible power supply (at the moment) wit...
By Batpred , 9 hours ago
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RE: Replacing my 18 month old Hitachi Yutaki ASHP
JamesPa I plan to send you a chart tomorrow of todays (...
By trebor12345 , 10 hours ago
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@trebor12345 Yes, expect defrost cycles to initiate at ...
By IaAck , 11 hours ago
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I would probably have them in white as that would match...
By Grantmethestrength , 11 hours ago
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RE: Hitachi Yutaki SCombi Heat Pump - Owners
@sim0n0 Sorry to hear that. Putting the past aside w...
By JamesPa , 12 hours ago
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RE: MelCloud "Mixing tank temperature"
This post, on my 'diary' thread, might be of interest i...
By Sheriff Fatman , 12 hours ago
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RE: 10kw heat pump run in 24*7 data?
UPDATE: Very happy wife, since 24*7 I've actually had t...
By jeegnesh , 12 hours ago
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RE: Heat Pump Training vs. Real-World Installation
Thank you for doing that, @editor, and for writing this...
By Majordennisbloodnok , 14 hours ago
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RE: Which 6kw to 8kw ASHP can modulate down the lowest ?
@editor the easiest way to find out is to look at the d...
By Damon Blakemore , 22 hours ago
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RE: Battery with existing PV - regulations
I am curious... which inverter would you go with for so...
By Batpred , 1 day ago


