The Bosch Stainless Steel Indirect Storage Tanks covered under this warranty are:
Bosch SST SST150-40 40 Gallon
Bosch SST SST250-65 65 Gallon
Bosch SST SST300-80 80 Gallon
Bosch SST SST450-119 119 Gallon
First Ten Years –Limited Warranty
Bosch Thermotechnology Corp. (BTC) warrants that the Tank assembly will remain free of leaks for ten years from the date of original installation provided that the Tank is properly maintained by a qualified heating contractor and the other conditions of this warranty are met. If during this time BTC determines that the leak is the result of a defect in workmanship or materials, BTC, at its option, will repair or replace the Tank. Labor charges are not included.
Eleventh Year and Beyond– Limited Warranty
Beginning on the eleventh year from the date of original installation and thereafter, BTC provides a limited prorated warranty for defects in the Tank. If BTC determines that the leak is the result of a defect in workmanship or materials BTC will, at its option, repair the defective Tank or replace it with the most comparable model available from BTC at the time of the replacement, provided that the purchaser pays for the proportionate charge set forth below. The proportionate charge is based on the current list price of the Tank involved in the warranty claim (or the nearest comparable model). The purchaser is charged a percentage of the list price of the Tank (at the time of the claim) as detailed below.
Other Hot Water System Components
All other components outside of the indirect tank will be covered for 1 year from date of installation.
Please be aware there are many factors and elements that affect the Bosch SST units. One major factor that is not covered under the lifetime limited warranty is high levels of Chlorine in the water. BTC will not warranty a unit that is installed in an area that has 80 parts per million (ppm) or higher of Chlorine in the water. People with high levels of Chlorine or other minerals in the water should use a glass lined indirect tank and at current this is not an option through Bosch.
Please visit the link above to review the full warranty under the Bosch website.