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
Nice job! A condesing gas boiler can be optimised and compete with a heat pump that’s on the cheapest tariff e.g. Octopus Agile currently benefiting from windy days 👍🍃 💚 Controller improvements in heat pumps could unlock further efficiency gains too 💚 please investigate 👇
bsky.app/profile/show...
bsky.app/profile/show...
Cost, Energy and Comfort Comparison
[17 Days | 28 Oct 25 to 13 Nov 25]
Heat Pump (Agile) was cheaper by £0.05 (0.2 %) vs Boiler (Tracker), or £5.13 after offsetting £5.08 gas stand. charge (17 d × £0.299)🥇🎉
Prices based on @octopus.energy tariffs 💚
[17 Days | 28 Oct 25 to 13 Nov 25]
Heat Pump (Agile) was cheaper by £0.05 (0.2 %) vs Boiler (Tracker), or £5.13 after offsetting £5.08 gas stand. charge (17 d × £0.299)🥇🎉
Prices based on @octopus.energy tariffs 💚
November 14, 2025 at 7:45 AM
Nice job! A condesing gas boiler can be optimised and compete with a heat pump that’s on the cheapest tariff e.g. Octopus Agile currently benefiting from windy days 👍🍃 💚 Controller improvements in heat pumps could unlock further efficiency gains too 💚 please investigate 👇
bsky.app/profile/show...
bsky.app/profile/show...
Electricity / Gas Unit Cost Ratio Comparison
[17 days, 28 Oct 2025 – 13 Nov 2025]
Yesterday:
Spark-Gap Tracker: 4.60×
Electricity: £0.2117
Gas: £0.0460
Mean:
Spark-Gap Tracker: 4.55×
Electricity: £0.2204
Gas: £0.0484
[17 days, 28 Oct 2025 – 13 Nov 2025]
Yesterday:
Spark-Gap Tracker: 4.60×
Electricity: £0.2117
Gas: £0.0460
Mean:
Spark-Gap Tracker: 4.55×
Electricity: £0.2204
Gas: £0.0484
November 14, 2025 at 5:05 AM
Electricity / Gas Unit Cost Ratio Comparison
[17 days, 28 Oct 2025 – 13 Nov 2025]
Yesterday:
Spark-Gap Tracker: 4.60×
Electricity: £0.2117
Gas: £0.0460
Mean:
Spark-Gap Tracker: 4.55×
Electricity: £0.2204
Gas: £0.0484
[17 days, 28 Oct 2025 – 13 Nov 2025]
Yesterday:
Spark-Gap Tracker: 4.60×
Electricity: £0.2117
Gas: £0.0460
Mean:
Spark-Gap Tracker: 4.55×
Electricity: £0.2204
Gas: £0.0484
November 14, 2025 at 5:05 AM
Electricity / Gas Unit Cost Ratio Comparison
[16 days, 28 Oct 2025 – 12 Nov 2025]
Yesterday:
Spark-Gap Tracker: 4.96×
Electricity: £0.2212
Gas: £0.0446
Mean:
Spark-Gap Tracker: 4.55×
Electricity: £0.2209
Gas: £0.0486
[16 days, 28 Oct 2025 – 12 Nov 2025]
Yesterday:
Spark-Gap Tracker: 4.96×
Electricity: £0.2212
Gas: £0.0446
Mean:
Spark-Gap Tracker: 4.55×
Electricity: £0.2209
Gas: £0.0486
November 13, 2025 at 5:05 AM
Electricity / Gas Unit Cost Ratio Comparison
[16 days, 28 Oct 2025 – 12 Nov 2025]
Yesterday:
Spark-Gap Tracker: 4.96×
Electricity: £0.2212
Gas: £0.0446
Mean:
Spark-Gap Tracker: 4.55×
Electricity: £0.2209
Gas: £0.0486
[16 days, 28 Oct 2025 – 12 Nov 2025]
Yesterday:
Spark-Gap Tracker: 4.96×
Electricity: £0.2212
Gas: £0.0446
Mean:
Spark-Gap Tracker: 4.55×
Electricity: £0.2209
Gas: £0.0486
November 13, 2025 at 5:05 AM
Electricity / Gas Unit Cost Ratio Comparison
[15 days, 28 Oct 2025 – 11 Nov 2025]
Yesterday:
Spark-Gap Tracker: 4.88×
Electricity: £0.2298
Gas: £0.0471
Mean:
Spark-Gap Tracker: 4.52×
Electricity: £0.2209
Gas: £0.0489
[15 days, 28 Oct 2025 – 11 Nov 2025]
Yesterday:
Spark-Gap Tracker: 4.88×
Electricity: £0.2298
Gas: £0.0471
Mean:
Spark-Gap Tracker: 4.52×
Electricity: £0.2209
Gas: £0.0489
November 12, 2025 at 5:05 AM
Electricity / Gas Unit Cost Ratio Comparison
[15 days, 28 Oct 2025 – 11 Nov 2025]
Yesterday:
Spark-Gap Tracker: 4.88×
Electricity: £0.2298
Gas: £0.0471
Mean:
Spark-Gap Tracker: 4.52×
Electricity: £0.2209
Gas: £0.0489
[15 days, 28 Oct 2025 – 11 Nov 2025]
Yesterday:
Spark-Gap Tracker: 4.88×
Electricity: £0.2298
Gas: £0.0471
Mean:
Spark-Gap Tracker: 4.52×
Electricity: £0.2209
Gas: £0.0489
November 12, 2025 at 5:05 AM
Colder, choppier night outside, but inside stayed rock-solid at 20.5 °C ±0.02 ❄️🍃🎉🥳 Can anyone even grasp that heating precision? 🙃
November 11, 2025 at 5:30 AM
Colder, choppier night outside, but inside stayed rock-solid at 20.5 °C ±0.02 ❄️🍃🎉🥳 Can anyone even grasp that heating precision? 🙃
Electricity / Gas Unit Cost Ratio Comparison
[14 days, 28 Oct 2025 – 10 Nov 2025]
Yesterday:
Spark-Gap Tracker: 4.76×
Electricity: £0.2335
Gas: £0.0490
Mean:
Spark-Gap Tracker: 4.49×
Electricity: £0.2202
Gas: £0.0490
[14 days, 28 Oct 2025 – 10 Nov 2025]
Yesterday:
Spark-Gap Tracker: 4.76×
Electricity: £0.2335
Gas: £0.0490
Mean:
Spark-Gap Tracker: 4.49×
Electricity: £0.2202
Gas: £0.0490
November 11, 2025 at 5:05 AM
Electricity / Gas Unit Cost Ratio Comparison
[14 days, 28 Oct 2025 – 10 Nov 2025]
Yesterday:
Spark-Gap Tracker: 4.76×
Electricity: £0.2335
Gas: £0.0490
Mean:
Spark-Gap Tracker: 4.49×
Electricity: £0.2202
Gas: £0.0490
[14 days, 28 Oct 2025 – 10 Nov 2025]
Yesterday:
Spark-Gap Tracker: 4.76×
Electricity: £0.2335
Gas: £0.0490
Mean:
Spark-Gap Tracker: 4.49×
Electricity: £0.2202
Gas: £0.0490
November 11, 2025 at 5:05 AM
Electricity / Gas Unit Cost Ratio Comparison
[13 days, 28 Oct 2025 – 09 Nov 2025]
Yesterday:
Spark-Gap Tracker: 4.83×
Electricity: £0.2366
Gas: £0.0489
Mean:
Spark-Gap Tracker: 4.47×
Electricity: £0.2192
Gas: £0.0490
[13 days, 28 Oct 2025 – 09 Nov 2025]
Yesterday:
Spark-Gap Tracker: 4.83×
Electricity: £0.2366
Gas: £0.0489
Mean:
Spark-Gap Tracker: 4.47×
Electricity: £0.2192
Gas: £0.0490
November 10, 2025 at 8:45 PM
Electricity / Gas Unit Cost Ratio Comparison
[13 days, 28 Oct 2025 – 09 Nov 2025]
Yesterday:
Spark-Gap Tracker: 4.83×
Electricity: £0.2366
Gas: £0.0489
Mean:
Spark-Gap Tracker: 4.47×
Electricity: £0.2192
Gas: £0.0490
[13 days, 28 Oct 2025 – 09 Nov 2025]
Yesterday:
Spark-Gap Tracker: 4.83×
Electricity: £0.2366
Gas: £0.0489
Mean:
Spark-Gap Tracker: 4.47×
Electricity: £0.2192
Gas: £0.0490
November 10, 2025 at 8:45 PM
Electricity / Gas Unit Cost Ratio Comparison
[12 days, 28 Oct 2025 – 08 Nov 2025]
Yesterday:
Spark-Gap Tracker: 4.90×
Electricity: £0.2397
Gas: £0.0489
Mean:
Spark-Gap Tracker: 4.44×
Electricity: £0.2178
Gas: £0.0490
[12 days, 28 Oct 2025 – 08 Nov 2025]
Yesterday:
Spark-Gap Tracker: 4.90×
Electricity: £0.2397
Gas: £0.0489
Mean:
Spark-Gap Tracker: 4.44×
Electricity: £0.2178
Gas: £0.0490
November 9, 2025 at 5:11 AM
Electricity / Gas Unit Cost Ratio Comparison
[12 days, 28 Oct 2025 – 08 Nov 2025]
Yesterday:
Spark-Gap Tracker: 4.90×
Electricity: £0.2397
Gas: £0.0489
Mean:
Spark-Gap Tracker: 4.44×
Electricity: £0.2178
Gas: £0.0490
[12 days, 28 Oct 2025 – 08 Nov 2025]
Yesterday:
Spark-Gap Tracker: 4.90×
Electricity: £0.2397
Gas: £0.0489
Mean:
Spark-Gap Tracker: 4.44×
Electricity: £0.2178
Gas: £0.0490
November 9, 2025 at 5:11 AM
Electricity / Gas Unit Cost Ratio Comparison
[11 days, 28 Oct 2025 – 07 Nov 2025]
Yesterday:
Spark-Gap Tracker: 4.93×
Electricity: £0.2417
Gas: £0.0490
Mean:
Spark-Gap Tracker: 4.40×
Electricity: £0.2158
Gas: £0.0490
[11 days, 28 Oct 2025 – 07 Nov 2025]
Yesterday:
Spark-Gap Tracker: 4.93×
Electricity: £0.2417
Gas: £0.0490
Mean:
Spark-Gap Tracker: 4.40×
Electricity: £0.2158
Gas: £0.0490
November 8, 2025 at 5:08 AM
Electricity / Gas Unit Cost Ratio Comparison
[11 days, 28 Oct 2025 – 07 Nov 2025]
Yesterday:
Spark-Gap Tracker: 4.93×
Electricity: £0.2417
Gas: £0.0490
Mean:
Spark-Gap Tracker: 4.40×
Electricity: £0.2158
Gas: £0.0490
[11 days, 28 Oct 2025 – 07 Nov 2025]
Yesterday:
Spark-Gap Tracker: 4.93×
Electricity: £0.2417
Gas: £0.0490
Mean:
Spark-Gap Tracker: 4.40×
Electricity: £0.2158
Gas: £0.0490
November 8, 2025 at 5:08 AM
Electricity / Gas Unit Cost Ratio Comparison
[10 days, 28 Oct 2025 – 06 Nov 2025]
Yesterday:
Spark-Gap Tracker: 4.69×
Electricity: £0.2324
Gas: £0.0496
Mean:
Spark-Gap Tracker: 4.35×
Electricity: £0.2132
Gas: £0.0490
[10 days, 28 Oct 2025 – 06 Nov 2025]
Yesterday:
Spark-Gap Tracker: 4.69×
Electricity: £0.2324
Gas: £0.0496
Mean:
Spark-Gap Tracker: 4.35×
Electricity: £0.2132
Gas: £0.0490
November 7, 2025 at 5:05 AM
Electricity / Gas Unit Cost Ratio Comparison
[10 days, 28 Oct 2025 – 06 Nov 2025]
Yesterday:
Spark-Gap Tracker: 4.69×
Electricity: £0.2324
Gas: £0.0496
Mean:
Spark-Gap Tracker: 4.35×
Electricity: £0.2132
Gas: £0.0490
[10 days, 28 Oct 2025 – 06 Nov 2025]
Yesterday:
Spark-Gap Tracker: 4.69×
Electricity: £0.2324
Gas: £0.0496
Mean:
Spark-Gap Tracker: 4.35×
Electricity: £0.2132
Gas: £0.0490