Solar Water Heater Controls and Monitoring: What to Look For
A controller decides when an active system runs, and monitoring tells you it is working. Here is what to look for and what to check.
Buying Guides
Buying guides compare systems and kits, components and controls using published specifications and certification listings. We do not claim to have tested products unless an article says so.
Solar Water Heater Component Comparisons: Collectors, Tanks and Valves
When quotes list different components, it helps to know what each choice means. Here is how to compare collectors, tanks, valves and controls.
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 Compare Solar Water Heater Systems Before You Buy
Comparing solar water heaters is easier with a fixed list of questions. Here is what to compare and where to find each answer, with no product picks.