Solar Water Heating Explained: How It Works and Where It Fits
Solar water heating uses the sun's heat directly, not solar electricity. Here is how it works, the main system types and where it fits.
Solar Water Solutions
Solar Water Solutions helps households and property owners choose a solar water heating system. We explain how solar thermal systems work, how they differ from solar PV panels, which system types suit which climates and how to size, compare and maintain a system.
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Expert opinions on the newest products
Solar Water Heater Maintenance: Checks, Freeze Protection and Fixes
Installed solar water heaters need periodic checks. Here is what to inspect, how freeze protection works and when to call a technician.
Solar Water Heating Costs and Efficiency: How to Evaluate a Proposal
Whether solar water heating pays off depends on your climate, hot water use and backup fuel. Here is how to evaluate a proposal with your own numbers.
Solar Water Heater Components: Collectors, Tanks, Pumps and Pipes
A solar water heater is more than the panels on the roof. Here is what each component does and how the parts work together.
Solar Water Heater Buying Guide: Certifications, Specs and Contractors
Certification listings and published specs tell you more than marketing. Here is how to compare solar water heaters, parts and installers.
How to Choose a Solar Water Heating System for Your Home
The right solar water heater depends on your hot water use, climate, roof and backup heating. Here is how to weigh each factor.