Solar Water Heater Calculator
Calculate savings from a solar water heating system versus electric or gas water heating.
Results
Visualization
How It Works
Solar water heaters use thermal collectors to heat water directly, which is more efficient than converting sunlight to electricity first. A typical system covers 60-70% of hot water needs. Water heating is the second-largest energy expense in most homes at 18% of the utility bill. Solar thermal systems cost $4,000-6,000 installed and last 20+ years.