Last seen: Apr 7, 2024
@ggw I left ours in AGM volts mode for maybe 2 months, the adaption was automatic but slow. I did try and hurry it along by manually tweaking the A...
We have 304Ah batts too, but after letting the sunsynk auto detect to the size, it thinks they are vastly different to this. Our system now works ver...
When we first installed our Sunsynk I initially tried to use Li-bms as the battery state - this was dreadful, resulting in all sorts of weird behaviou...
@ggw I had a lot of trouble with the sunsynk originally(ok, I still do…). New LiFePo4 battery, with the Seplos bms that talked with it, and yet I fou...
@ggw While I’ve set it to work down to 1%, it’s an extremely rare occurance. Most of the time it cycles 90% to 50%. While I appreciate the degradati...
Screenshots from our Sunsynk. We have an old independent 4kWp FIT install, and our elec is Octopus Go. The sunsynk charges from night elec and PV, r...
@misterb I'd originally intended to top balance in parallel. When I thought it through, it just seemed a lot of faff - how to compress the cells? ...
@misterb Yes. In the case, compressed, with a capacitive active balancer. I think balancing should not be done uncompressed.
We charged our 15.5kWh 280L system to 56V in AGM V mode (3.5V per cell) over the coldest months with Octopus Go, which is 100% or near enough. That w...
@ggw I think the cable to the unit needs to be double insulated if you can touch it. Ideally the twisted pair from the CT should be away from any ma...
Personally I think it's only worth insuring stuff when your life would be really difficult without it. Home against fire, car, medical if you're on h...
I used 50mm2 cable, sunsynk 3.6kW to 100A givenergy breaker to 280L fogstar. 50 is the largest that fits all the above.
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RE: Maximising Savings: Navigating My First Year with Octopus Energy and Heat Pump Running Costs
@allyfish Having been on Agile tariff again for several...
By Toodles , 13 hours ago
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RE: Gas Combi to ASHP - Making sense of survey results and proposal.
An annual gas use figure of 13000kWh, as long as you ar...
By HarriUp , 15 hours ago
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RE: Say hello and introduce yourself
@dr_dongle Living as we do on a hill, one side of our p...
By Toodles , 16 hours ago
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RE: Fossil Fuel Fired Heating v Heat Pump?
Another aspect was the DHW heating; the coal fire in th...
By Toodles , 21 hours ago
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In an ideal world a heat pump unit would contain two co...
By Derek M , 1 day ago
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RE: ASHP Advice: High Temperature vs. Low Temperature Heat Pump For Microbore
@jamespa I fully agree with James that a HT heat pump...
By Derek M , 1 day ago
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RE: Installing your own ASHP - DIY
@tomasmcguinness Have you been able to perform any sani...
By IanMK13 , 2 days ago
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RE: Viessmann Vitocal 250-A in the UK
For reference, I have a 10 kWh Viessmann 151-A installe...
By GC61 , 2 days ago
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RE: Vaillant Arotherm Settings for New Installation
@drew-pa Ah thanks. Good to know I dont have a misconce...
By bontwoody , 2 days ago
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RE: Aira Heat Pump: Stylish Scandinavian Heating
On the whole marketing claims vs reality on performance...
By GunboatDiplomat , 2 days ago
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RE: Microbore Central Heating Plumbing, will it be a barrier / pain?
@mattc All the existing (designed for T50) radiators ar...
By IanMK13 , 2 days ago
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The temporary fix has reconnected about 60% of users, a...
By Abernyte , 2 days ago
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RE: What is Wrong with our Heat Pump Installation?
Having to run the heat pump during the summer for DHW s...
By Toodles , 3 days ago
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Issues with Vaillant connectivity via the MyCONNECT gateway
I'm sensing a variety of issues with Vaillant connectiv...
By dr_dongle , 3 days ago
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Interesting heat pumps installations
Thought it would be cool to share photos of interesting...
By Mars , 3 days ago
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RE: Massive Electricity Cost for Running My Air Source Heat Pump
@allyfish In fairness installer has replied stra...
By Holts , 3 days ago
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RE: Are Solar Diverters Necessary for Homes with ASHPs and Solar PV?
@zzxap19 that's a fair point. With the eddi, is it poss...
By Mars , 4 days ago
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RE: Delivering a smart and secure electricity system: government consultation
"I don't think I'll need to refer to past iterations of...
By eggnchips , 4 days ago
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RE: Error on Immersun – Error 8 Load Short Circuit
@julesmp8 fingers crossed. I have to say our Immersu...
By Mars , 4 days ago
Latest Topics
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Interesting heat pumps installations
By Mars 3 days ago
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What is Wrong with our Heat Pump Installation?
By Mars 4 days ago
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Fossil Fuel Fired Heating v Heat Pump?
By Toodles 4 days ago
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Viessmann Vitocal 250-A in the UK
By treehugger 5 days ago
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By HUBB84 1 week ago
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By jswhite 1 week ago