The Thermal-Stor Stratified Solar Thermal Storage Tank is a storage tank and hydronic buffer in one. Taking advantage of heated water’s natural buoyancy, hot water at the top of the tank can be pulled for space heating; cooler water at the bottom allows for increased collector efficiency and improved solar heat generation. Lochinvar | 615.889.8900 |

—Lauren Hunter is the senior products editor atREMODELING. Find her on Twitter at@LaurenHunter_HW or @RemodelingMag.