Fixes that pay
Each fix shows a yearly saving with its source. Enter what you'd pay and the check shows the payback in years.
| Fix | What the saving is based on |
|---|---|
| LED bulbs | ENERGY STAR: LEDs use up to 90% less energy than incandescent bulbs. We use 60 W → 9 W. |
| 1.8 gal/min showerhead | Federal limit 2.5 gal/min; EPA WaterSense models use 2.0 or less. Saves water and the energy to heat it. |
| 1.28 gal/flush toilet | EPA WaterSense criteria. Priced only when you add your water bill. |
| Night thermostat setback | U.S. DOE: 7–10°F for 8 hours a day saves up to 10% a year on heating and cooling. Free. |
| Air sealing + insulation | ENERGY STAR: an average of 15% on heating and cooling costs. |
| ENERGY STAR heat pump | Compared at the ENERGY STAR minimums (SEER2 15.2, HSPF2 7.8) against your current system. |
| Rooftop solar | NASA POWER sunshine × 80% system performance; cost at Berkeley Lab's U.S. median cash price, $3.00/W (2025, before incentives). |
Savings are estimates for a typical home, not a quote. Your contractor's numbers win. Run my check