Efficient Gas Boiler and Climate Control
@showpiece.bsky.social
Goals:
1. Climate comfort - where you can’t tell whether heating is on or off and you feel comfortable
2. Efficient boiler to minimise costs and pollution
GitHub:
https://github.com/Alexwijn/SAT/discussions/40
1. Climate comfort - where you can’t tell whether heating is on or off and you feel comfortable
2. Efficient boiler to minimise costs and pollution
GitHub:
https://github.com/Alexwijn/SAT/discussions/40
That's what I said indeed! 💚 Which one is it? It's both! 🥰 Any system can be improved! We can make many existing (modern) boilers more efficient while we transition to cleaner energy, and there are still more efficiencies to be unlocked with newer technologies too💚
November 25, 2025 at 11:05 PM
That's what I said indeed! 💚 Which one is it? It's both! 🥰 Any system can be improved! We can make many existing (modern) boilers more efficient while we transition to cleaner energy, and there are still more efficiencies to be unlocked with newer technologies too💚
Absolutely, that’s what I said! 💚 If you have any more questions, feel free to ask away 💚
November 25, 2025 at 6:25 PM
Absolutely, that’s what I said! 💚 If you have any more questions, feel free to ask away 💚
My boiler heats my home at lower flow temperatures than that of a typical heat pump 💚
November 25, 2025 at 3:43 PM
My boiler heats my home at lower flow temperatures than that of a typical heat pump 💚
We never had incentives to make thermostat controllers better, they are good enough. Heat pumps though more efficient, suffer from the same poor thermostat controls that modern boilers use. And because they are clearly already efficient, there are no incentives to make controllers better.💚
November 25, 2025 at 2:03 PM
We never had incentives to make thermostat controllers better, they are good enough. Heat pumps though more efficient, suffer from the same poor thermostat controls that modern boilers use. And because they are clearly already efficient, there are no incentives to make controllers better.💚
They are reasonable. For majority of modern gas condensing boilers, they perform poorly, due to poor thermostat controls. Manufactures data specs use 40-50 degrees for mean water temperature but would NOT have used controllers that make their operations efficient during their lab tests.
November 25, 2025 at 2:03 PM
They are reasonable. For majority of modern gas condensing boilers, they perform poorly, due to poor thermostat controls. Manufactures data specs use 40-50 degrees for mean water temperature but would NOT have used controllers that make their operations efficient during their lab tests.
All other points are sound 💚 heat pumps are great overall, we just need lower electricity prices 💚
November 25, 2025 at 1:50 PM
All other points are sound 💚 heat pumps are great overall, we just need lower electricity prices 💚
I fact checked the fact-check number 7. „Operating Heat Pumps is more Expensive than Gas Systems - The opposite is true“.
The statement “The opposite is true” is false. See below real world data, not just theoretical data spec from manufacturers.
Instead - it depends 💚
bsky.app/profile/show...
The statement “The opposite is true” is false. See below real world data, not just theoretical data spec from manufacturers.
Instead - it depends 💚
bsky.app/profile/show...
Cost, Energy and Comfort Comparison
[579 Days | 24 Apr 24 to 23 Nov 25]
Boiler (Tracker) was cheaper by £134.02 (11.4 %) vs Heat Pump (Agile), or £-29.64 after offsetting £163.66 gas stand. charge (579 d × £0.283)🥇🎉
Prices based on @octopus.energy tariffs 💚
[579 Days | 24 Apr 24 to 23 Nov 25]
Boiler (Tracker) was cheaper by £134.02 (11.4 %) vs Heat Pump (Agile), or £-29.64 after offsetting £163.66 gas stand. charge (579 d × £0.283)🥇🎉
Prices based on @octopus.energy tariffs 💚
November 25, 2025 at 1:49 PM
I fact checked the fact-check number 7. „Operating Heat Pumps is more Expensive than Gas Systems - The opposite is true“.
The statement “The opposite is true” is false. See below real world data, not just theoretical data spec from manufacturers.
Instead - it depends 💚
bsky.app/profile/show...
The statement “The opposite is true” is false. See below real world data, not just theoretical data spec from manufacturers.
Instead - it depends 💚
bsky.app/profile/show...
SAT thermostat controller pushes the boundaries of physics. Overnight room temperature precision range of 0.06 degrees unfiltered or 0.026 degrees filtered 💚 @janrosenow.bsky.social @openenergymon.bsky.social Heat pumps can unlock this efficiency too! 💚
November 25, 2025 at 10:17 AM
SAT thermostat controller pushes the boundaries of physics. Overnight room temperature precision range of 0.06 degrees unfiltered or 0.026 degrees filtered 💚 @janrosenow.bsky.social @openenergymon.bsky.social Heat pumps can unlock this efficiency too! 💚
Two findings:
1. It identifies the most likely target room temperature (identified mine at 20.5) 🎉 - see the blue arrows
2. Heat pumps can unlock 30% comfort improvements with the right thermostat controller 💚
@janrosenow.bsky.social @betatalk.bsky.social @openenergymon.bsky.social
1. It identifies the most likely target room temperature (identified mine at 20.5) 🎉 - see the blue arrows
2. Heat pumps can unlock 30% comfort improvements with the right thermostat controller 💚
@janrosenow.bsky.social @betatalk.bsky.social @openenergymon.bsky.social
November 24, 2025 at 11:14 PM
Two findings:
1. It identifies the most likely target room temperature (identified mine at 20.5) 🎉 - see the blue arrows
2. Heat pumps can unlock 30% comfort improvements with the right thermostat controller 💚
@janrosenow.bsky.social @betatalk.bsky.social @openenergymon.bsky.social
1. It identifies the most likely target room temperature (identified mine at 20.5) 🎉 - see the blue arrows
2. Heat pumps can unlock 30% comfort improvements with the right thermostat controller 💚
@janrosenow.bsky.social @betatalk.bsky.social @openenergymon.bsky.social
Electricity / Gas Unit Cost Ratio Comparison
[579 days, 24 Apr 2024 – 23 Nov 2025]
Yesterday:
Spark-Gap Tracker: 4.62×
Electricity: £0.2299
Gas: £0.0498
Mean:
Spark-Gap Tracker: 4.35×
Electricity: £0.2252
Gas: £0.0521
[579 days, 24 Apr 2024 – 23 Nov 2025]
Yesterday:
Spark-Gap Tracker: 4.62×
Electricity: £0.2299
Gas: £0.0498
Mean:
Spark-Gap Tracker: 4.35×
Electricity: £0.2252
Gas: £0.0521
November 24, 2025 at 5:20 AM
Electricity / Gas Unit Cost Ratio Comparison
[579 days, 24 Apr 2024 – 23 Nov 2025]
Yesterday:
Spark-Gap Tracker: 4.62×
Electricity: £0.2299
Gas: £0.0498
Mean:
Spark-Gap Tracker: 4.35×
Electricity: £0.2252
Gas: £0.0521
[579 days, 24 Apr 2024 – 23 Nov 2025]
Yesterday:
Spark-Gap Tracker: 4.62×
Electricity: £0.2299
Gas: £0.0498
Mean:
Spark-Gap Tracker: 4.35×
Electricity: £0.2252
Gas: £0.0521
November 24, 2025 at 5:20 AM
Electricity / Gas Unit Cost Ratio Comparison
[30 days, 01 Nov 2024 – 30 Nov 2024]
30 Nov 2024:
Spark-Gap Tracker: 3.82×
Electricity: £0.2360
Gas: £0.0617
Mean:
Spark-Gap Tracker: 4.04×
Electricity: £0.2405
Gas: £0.0596
[30 days, 01 Nov 2024 – 30 Nov 2024]
30 Nov 2024:
Spark-Gap Tracker: 3.82×
Electricity: £0.2360
Gas: £0.0617
Mean:
Spark-Gap Tracker: 4.04×
Electricity: £0.2405
Gas: £0.0596
November 23, 2025 at 5:05 AM
Electricity / Gas Unit Cost Ratio Comparison
[30 days, 01 Nov 2024 – 30 Nov 2024]
30 Nov 2024:
Spark-Gap Tracker: 3.82×
Electricity: £0.2360
Gas: £0.0617
Mean:
Spark-Gap Tracker: 4.04×
Electricity: £0.2405
Gas: £0.0596
[30 days, 01 Nov 2024 – 30 Nov 2024]
30 Nov 2024:
Spark-Gap Tracker: 3.82×
Electricity: £0.2360
Gas: £0.0617
Mean:
Spark-Gap Tracker: 4.04×
Electricity: £0.2405
Gas: £0.0596
November 23, 2025 at 5:05 AM
That’s a fantastic video, a lot of effort went into it. Sharing data and experiences helps us all understand our current position and future direction 💚
bsky.app/profile/show...
bsky.app/profile/show...
Cost, Energy and Comfort Comparison
[365 Days | 22 Nov 24 to 21 Nov 25]
Boiler (Tracker) was cheaper by £90.63 (10.4 %) vs Heat Pump (Agile), or £-14.20 after offsetting £104.83 gas stand. charge (365 d × £0.287)🥇🎉
Prices based on @octopus.energy tariffs 💚
[365 Days | 22 Nov 24 to 21 Nov 25]
Boiler (Tracker) was cheaper by £90.63 (10.4 %) vs Heat Pump (Agile), or £-14.20 after offsetting £104.83 gas stand. charge (365 d × £0.287)🥇🎉
Prices based on @octopus.energy tariffs 💚
November 22, 2025 at 10:01 AM
That’s a fantastic video, a lot of effort went into it. Sharing data and experiences helps us all understand our current position and future direction 💚
bsky.app/profile/show...
bsky.app/profile/show...
Gas prices have been lower this season and the trend is clearly downwards. This isn’t great news for transitioning to cleaner energy 💚
bsky.app/profile/show...
bsky.app/profile/show...
Cost, Energy and Comfort Comparison
[365 Days | 22 Nov 24 to 21 Nov 25]
Boiler (Tracker) was cheaper by £90.63 (10.4 %) vs Heat Pump (Agile), or £-14.20 after offsetting £104.83 gas stand. charge (365 d × £0.287)🥇🎉
Prices based on @octopus.energy tariffs 💚
[365 Days | 22 Nov 24 to 21 Nov 25]
Boiler (Tracker) was cheaper by £90.63 (10.4 %) vs Heat Pump (Agile), or £-14.20 after offsetting £104.83 gas stand. charge (365 d × £0.287)🥇🎉
Prices based on @octopus.energy tariffs 💚
November 22, 2025 at 9:58 AM
Gas prices have been lower this season and the trend is clearly downwards. This isn’t great news for transitioning to cleaner energy 💚
bsky.app/profile/show...
bsky.app/profile/show...
Electricity / Gas Unit Cost Ratio Comparison
[365 days, 22 Nov 2024 – 21 Nov 2025]
Yesterday:
Spark-Gap Tracker: 5.34×
Electricity: £0.2724
Gas: £0.0510
Mean:
Spark-Gap Tracker: 4.25×
Electricity: £0.2293
Gas: £0.0543
[365 days, 22 Nov 2024 – 21 Nov 2025]
Yesterday:
Spark-Gap Tracker: 5.34×
Electricity: £0.2724
Gas: £0.0510
Mean:
Spark-Gap Tracker: 4.25×
Electricity: £0.2293
Gas: £0.0543
November 22, 2025 at 5:13 AM
Electricity / Gas Unit Cost Ratio Comparison
[365 days, 22 Nov 2024 – 21 Nov 2025]
Yesterday:
Spark-Gap Tracker: 5.34×
Electricity: £0.2724
Gas: £0.0510
Mean:
Spark-Gap Tracker: 4.25×
Electricity: £0.2293
Gas: £0.0543
[365 days, 22 Nov 2024 – 21 Nov 2025]
Yesterday:
Spark-Gap Tracker: 5.34×
Electricity: £0.2724
Gas: £0.0510
Mean:
Spark-Gap Tracker: 4.25×
Electricity: £0.2293
Gas: £0.0543
November 22, 2025 at 5:13 AM
Electricity / Gas Unit Cost Ratio Comparison
[180 days, 25 May 2025 – 20 Nov 2025]
Yesterday:
Spark-Gap Tracker: 4.86×
Electricity: £0.2494
Gas: £0.0513
Mean:
Spark-Gap Tracker: 4.40×
Electricity: £0.2227
Gas: £0.0507
[180 days, 25 May 2025 – 20 Nov 2025]
Yesterday:
Spark-Gap Tracker: 4.86×
Electricity: £0.2494
Gas: £0.0513
Mean:
Spark-Gap Tracker: 4.40×
Electricity: £0.2227
Gas: £0.0507
November 21, 2025 at 5:09 AM
Electricity / Gas Unit Cost Ratio Comparison
[180 days, 25 May 2025 – 20 Nov 2025]
Yesterday:
Spark-Gap Tracker: 4.86×
Electricity: £0.2494
Gas: £0.0513
Mean:
Spark-Gap Tracker: 4.40×
Electricity: £0.2227
Gas: £0.0507
[180 days, 25 May 2025 – 20 Nov 2025]
Yesterday:
Spark-Gap Tracker: 4.86×
Electricity: £0.2494
Gas: £0.0513
Mean:
Spark-Gap Tracker: 4.40×
Electricity: £0.2227
Gas: £0.0507
November 21, 2025 at 5:08 AM
Electricity / Gas Unit Cost Ratio Comparison
[90 days, 22 Aug 2025 – 19 Nov 2025]
Yesterday:
Spark-Gap Tracker: 4.64×
Electricity: £0.2402
Gas: £0.0518
Mean:
Spark-Gap Tracker: 4.44×
Electricity: £0.2213
Gas: £0.0498
[90 days, 22 Aug 2025 – 19 Nov 2025]
Yesterday:
Spark-Gap Tracker: 4.64×
Electricity: £0.2402
Gas: £0.0518
Mean:
Spark-Gap Tracker: 4.44×
Electricity: £0.2213
Gas: £0.0498
November 20, 2025 at 5:06 AM
Electricity / Gas Unit Cost Ratio Comparison
[90 days, 22 Aug 2025 – 19 Nov 2025]
Yesterday:
Spark-Gap Tracker: 4.64×
Electricity: £0.2402
Gas: £0.0518
Mean:
Spark-Gap Tracker: 4.44×
Electricity: £0.2213
Gas: £0.0498
[90 days, 22 Aug 2025 – 19 Nov 2025]
Yesterday:
Spark-Gap Tracker: 4.64×
Electricity: £0.2402
Gas: £0.0518
Mean:
Spark-Gap Tracker: 4.44×
Electricity: £0.2213
Gas: £0.0498