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robl
@robl
Member
Honorable Member
2355 kWhs
Joined: Mar 23, 2022
Last seen: Jun 7, 2024
Topics: 1 / Replies: 183
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RE: Comparing & Evaluating the Efficiency of Gas Heating vs. ASHP Powered by Gas-Fired Electricity

‘Natural’ gas energy content is usually given at the Lower Heating Value (LHV). This value is not the total chemical energy, but assumes all water cr...

1 month ago
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RE: Placement of Samsung R290 ASHP

The choice of refrigerant is always a compromise. So far as I'm aware, they are generally: Poisonous / High GWP / ozone depleting / flammable / sup...

2 months ago
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RE: Placement of Samsung R290 ASHP

Compared to having ‘natural’ gas piped continuously into a home -a permanent gas source, the tiny amount of r290 kept safely in a heatpump for many ma...

2 months ago
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RE: Placement of Samsung R290 ASHP

I wanted to put our r290 gshp near a kitchen drain. And found to my dismay that it didn’t have a trap! Bit of a faff, but managed to swap it out for...

2 months ago
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RE: New Fogstar 15.5kWh upright solution

@ggw When the sunsynk is used in lithium % mode, it also still makes use of the basic voltage figures from the lead acid mode - these must be set corr...

2 months ago
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RE: New Fogstar 15.5kWh upright solution

@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...

3 months ago
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RE: New Fogstar 15.5kWh upright solution

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...

3 months ago
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RE: New Fogstar 15.5kWh upright solution

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...

3 months ago
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RE: New Fogstar 15.5kWh upright solution

@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...

4 months ago
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RE: New Fogstar 15.5kWh upright solution

@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...

4 months ago
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RE: New Fogstar 15.5kWh upright solution

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...

4 months ago
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RE: New Fogstar 15.5kWh upright solution

@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? ...

4 months ago
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