Emissions impact
Current annual emissions
0 kg
Post-upgrade emissions
0 kg
Total reduction
0 kg
Reduction percentage
0%
Equivalency comparisons
Methodology
How carbon savings are calculated
Current emissions are estimated from annual fuel consumption using UK greenhouse gas conversion factors: gas 0.203 kg CO₂e per kWh, electricity 0.207, oil 0.247, and LPG 0.214. If you enter spend rather than kWh, the calculator converts cost into energy using the benchmark tariffs supplied for each fuel. Upgrade savings are then applied as demand reductions or fuel switching effects.
Equivalencies are based on simple public-facing comparisons: roughly 25 kg CO₂ per mature tree per year and about 154 kg CO₂ for a return flight between London and Edinburgh. These are communication aids, not formal carbon accounting boundaries.
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