Warranty Information

We have been producing round and square thermal storage tanks longer than most companies in the business.  We are so confident in our products that we warrantee our products to be 100% free from defects in materials and workmanship under normal use and service after delivery of the tank to the original owner.  We have many tanks that have been in service for over 25 years that show no degradation.


The Heat Bank structure is warranteed for 5 years of regular residential use.


Our liners are inspected and tested prior to leaving our facility.  We are now offering a lifetime warranty on our liners.  This is a non-transferable warranty for the lifetime of the original Heat Bank installation.  This warranty covers materials and liner workmanship only.  This warranty covers all Heat Bank liners fabricated by American Solartechnics used in conjunction with American Solartechnics heat exchangers or in installations without heat exchangers (i.e. drain back installations).  Using third party or homemade heat exchangers in a Heat Bank liner voids the warranty.  Overheating damage is not covered.  Our liners are rated at 180˚F continuous and 200˚F intermittent.  Warranty card must be filled out and submitted to AST once the liner is in service for full coverage.  Liner must be installed as per directions in your Heat Bank manual.  


All heat exchangers are inspected and pressure tested prior to leaving our facility and are warranteed for 5 years of regular residential use in a tank lined properly.


If you have any questions about our warranty or our products, please feel free to contact us.

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