How long does a typical Thermal system last? Most professionally-installed systems will last 30 years or more. Most solar thermal collectors are warranted to last 10 years at nearly 100% of their original production. Richie2019-01-30T16:39:31-05:00January 30th, 2019|Categories: SOLAR| Share this with your connections! FacebookTwitterRedditLinkedInTumblrPinterestVkEmail Leave A Comment Cancel replyYou must be logged in to post a comment.