Compare calculators
Both calculators run independently β change the inputs on either side to compare results.
Heat Pump Savings Calculator (vs Gas or Oil)
Compare the annual heating cost of a heat pump against a gas or oil furnace using your heat demand, the heat pump's COP, furnace efficiency, and both fuel prices. Useful before buying a heat pump or filing for electrification rebates.
Annual heating savings
435.29 $/yr
$200-600/yr is the common range versus gas at moderate rates. The $435 example (COP 3, $0.07 fuel) recoups a typical $4-6k cost premium in roughly 10-14 years.
Savings compare delivered-heat fuel cost against heat-pump electricity cost; a positive number means the heat pump is cheaper to run, driven mainly by COP versus furnace efficiency and the electricity-to-fuel price ratio.
Solar Carbon Offset Calculator
Estimates the annual CO2 emissions avoided by your solar PV system, using your yearly production in kWh and the grid emission factor it displaces. Useful for sustainability reports, REC quantification, and household carbon-footprint dashboards.
Key differences
| Heat Pump Savings Calculator (vs Gas or Oil) | Solar Carbon Offset Calculator | |
|---|---|---|
| Category | Solar Energy | Solar Energy |
| Inputs required | 5 | 2 |
| Result | Annual heating savings ($/yr) | Annual CO2 Reduction (tonnes) |
| What it does | Compare the annual heating cost of a heat pump against a gas or oil furnace using your heat demand, the heat pump's COP, furnace efficiency, and both fuel prices. Useful before buying a heat pump or filing for electrification rebates. | Estimates the annual CO2 emissions avoided by your solar PV system, using your yearly production in kWh and the grid emission factor it displaces. Useful for sustainability reports, REC quantification, and household carbon-footprint dashboards. |