What is Solar Thermal? Solar Thermal is the process of turning sun energy into heat energy. This is most commonly used as a hot water based system to supplement your home or business hot water heating needs. Richie2019-01-30T16:21:40-05:00January 30th, 2019|Categories: SOLAR| Share this with your connections! FacebookTwitterRedditLinkedInTumblrPinterestVkEmail Leave A Comment Cancel replyYou must be logged in to post a comment.