Salt Can Cut HVAC Bills By Over 90% — Why Did We Stop Using It?

Discover the incredible, forgotten history of the Dover Sun House and how a radical 1948 experiment by physicist Maria Telkes almost revolutionized home climate control using nothing but salt. In this video, we break down how Phase Change Materials (PCMs) like Glauber’s salt can store up to 80 times more heat than brick without warming up—acting like a natural thermal battery for your home. While the original 1940s experiment faced catastrophic flaws like phase separation and corrosion, modern material science has officially solved these bugs. Learn how passive salt blankets and panels are being used today to slash cooling energy by up to 45%, shave expensive peak grid demand by 57%, and how you can potentially use this maintenance-free technology to keep your own home cool this summer.