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The Source for High-Quality Solar Hot Water Products from Free Hot Water

Free Hot Water manufactures and distributes Solar Thermal Products, including Solar Hot Water Collectors, Components, Pre-engineered systems, Solar storage tanks, Heat exchangers, Circulator pumps, Controllers, Pump stations, Pre-insulated flex hose, Tools, Radiant heat components, Sealants, Adhesives and more. 

More than 1,200 items available!

Visit our on-line shop to see our full line of solar hot water products. We welcome distributors, re-sellers, and dealers to Create an Account for fast and easy on-line shopping. Existing Customer Login.


Solar Thermal Collectors

Solar Thermal Collector


Building Maintenance Controls

Temperature Difference Controller

  • Stop Wasting Electricity and Gas un-necessarily
  • Stop running your recirculation pumps uncontrolled 24/7
  • Stop the wear and tear on your pipes
  • Automatically turn off Hot Water Pumps based on demand and water temperature
  • Reduce heat energy loss and pump run time in recirculation systems
  • Save 70% to 90% of the electricity used to run existing recirculation pumps
  • Increase Hot Water efficiency
  • Payback time can be less than 1 year

    Variable Speed Solar Pump Solutions

      Grundfos Pumps