Solar thermal systems are very popular in Saskatchewan. Solar Thermal is used to convert solar radiation from the sun into heat by evacuated tube collectors or flat plate collectors which are then transferred into a heat exchanger by a pump to actively preheat a water solution. In Saskatchewan, solar thermal works effectively with boiler systems, water heaters, in-floor heating, hot tubs, swimming pools, and various commercial applications where large volumes of hot water are required.

Solar thermal has various payback periods ranging anywhere from 7-15 years and is often installed as a hybrid system with solar panels that produce electricity.