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Last seen: May 6, 2023
@allyfish thanks for that. ”This is well known for both Li-Ion and Ni-Cad batteries.” Wish it was. Nothing about charge rate vs temperature in any...
@iancalderbank It's an interesting problem and far from straightforward. The risk reward balance is massively skewed towards not undercharging as that...
@iancalderbank Time-based improved in a software update last year - the one where you could enter the unit costs for the different time periods. Bef...
sorry for any confusion - it was the only reference I could find to charging and temperature! I don’t think you are alone @dunlorn there are two peo...
@dunlorn sorry really don’t know, temperature was just speculation on my part. The way I think it works is that the battery sends info to the invert...
Yes our Mitsubishi let’s us control the heating and hot water separately. That said we probably won’t turn the heating off - it is controlled by a w...
@davesoa don’t blame you. we don’t have gas and were about to need a new boiler and a new oil tank so went the ASHP route. it’s a massive fail by ...
@dandee 😀 Installation was ok. It was the commissioning that was terrible!
Batteries controllers may limit their charging current when they are cold - this could be a factor depending on where your batteries are located. A ...
A bit more... Last summer we ran in self powered mode - once the heat pump isn't heating the battery is plenty big enough to keep us going from day ...
The Powerwall has two modes - Time based control and self powered. Self powered mode will only charge from the sun - in summer that may be the righ...
Our Heat Pump installation went smoothly - 14kW Zubadan ASHP, conversion of HW system to mains pressure, new 250L tank, 18 radiators replaced - took l...
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Degrees of Separation
Latest Posts
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RE: Who's your electricity provider and what's your tariff?
@papahuhu I prefer to look at it simplistically. We d...
By Old_Scientist , 32 minutes ago
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RE: To re-pipe or not to re-pipe? Moving from oil boiler to air source heat pump.
Sooooo, what did we do in the end? We approached three ...
By Penval , 1 hour ago
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RE: How Accurate Is My DIY Heat Loss Calculation?
D'oh - of course. I shouldn't post before my brain is f...
By Old_Scientist , 6 hours ago
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RE: Questions about A2A for heating as well as cooling
@rob-of-york I would concur with the underfloor insulat...
By Toodles , 8 hours ago
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RE: New Vaillant Arotherm controls link to existing thermostats ; wired vs wireless
Nothing attached! I have rads but UFH makes the case ...
By JamesPa , 8 hours ago
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RE: Cooling with air to water heat pumps
Passive cooling should always be the first call. Keep ...
By JamesPa , 9 hours ago
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RE: Do I add Air Con or MVHR to existing A2W ASHP?
@rob-of-york Thank you, I’m thinking along these same l...
By Toodles , 1 day ago
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@Mars Good questions! The downstairs unit did the maj...
By Rob of York , 1 day ago
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RE: Volumisers in Heat Pump Systems: Does Placement Matter?
@dave, I think @jamespa has probably identified the mos...
By Mars , 2 days ago
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RE: Plug and play solar. Thoughts?
My thought is simple. Bring it on and bring on plug in...
By JamesPa , 2 days ago
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RE: Heat Geek mini store vs pump size
Yes I agree, that’s why Heat Geek have most likely sele...
By Tomtheheatingengineer , 3 days ago
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@tomtheheatingengineer, thank you, and welcome to the f...
By Mars , 3 days ago
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
@majordennisbloodnok @tomtheheatingengineer For my ...
By JamesPa , 3 days ago
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RE: Is the "divide by 2900" rule still valid?
Really flow rate is a pipework limitation not a water p...
By JamesPa , 4 days ago
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