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Limited Warranty for Demand Duo™ 80 - CHS19980HE / RHS19980HE
What is covered?
The Rinnai Standard Limited Warranty covers any defects in materials or workmanship when the product is
installed and operated according to Rinnai written installation instructions, subject to the terms within this
Limited Warranty document. This Limited Warranty applies only to products that are installed correctly in the
United States and Canada. Improper installation may void this Limited Warranty. In order for this warranty to
apply, it is required that you use a licensed professional who has attended a Rinnai installation training class
before installing this water heater. This Limited Warranty coverage as set out in the table below extends to the
original purchaser and subsequent owners, but only while the product remains at the site of the original
installation. This Limited Warranty only extends to the first/original installation of the product and terminates if
the product is moved or reinstalled at a new location.
How long does coverage last?
Item
Heat Exchanger
Storage Tank
All Other Parts and Components
Reasonable Labor
[1] Period of coverage is reduced to 3 years from date of purchase when used as a recirculating water heater within a hot water
recirculation loop, where the water heater is in series with a recirculation system and all recirculating water flows through the water
heater, and where an aquastat /thermostat, timer, or an on-demand recirculation system is not incorporated .
On-demand recirculation is defined as a hot water recirculating loop or system that utilizes existing hot and cold lines or a dedicated
return line, and only activates when hot water is used. It can be activated by a push button, motion sensor, or voice activation but
not by a temperature sensor. A timer added to a standard recirculating pump is not considered as on-demand.
[2] The Rinnai Limited Warranty for a heat exchanger used in a recirculation system which is controlled through an aquastat /
thermostat, or timer, or an on-demand system is 5 years for commercial applications.
NOTE: The integrated controller on indoor models has a 1 year warranty on parts.
What will Rinnai do?
Rinnai will repair or replace the covered product or any part or component that is defective in materials or
workmanship as set forth in the above table. Rinnai will pay reasonable labor charges associated with the repair
or replacement of any such part or component during the term of the labor warranty period. All repair parts
must be genuine Rinnai parts. All repairs or replacements must be performed by a licensed professional that is
properly trained, state qualified or licensed to do the type of repair.
Replacement of the product may be authorized by Rinnai only at its sole discretion. Rinnai does not authorize
any person or company to assume for it any obligation or liability in connection with the replacement of the
product. If Rinnai determines that repair of a product is not possible, Rinnai may replace the product with a
comparable product at Rinnai's sole discretion. The warranty claim for product parts and labor may be denied if
a component or product returned to Rinnai is found to be free of defects in material or workmanship; damaged
by improper installation, use or operation; or damaged during return shipping
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Period of Coverage (from date of purchase)
Residential Applications
heating and space heating purposes
12 years [1] [2]
Demand Duo™ 80
If used for both residential water
10 years [1] [2]
6 years [1] [2]
5 years [1]
1 year
Commercial Applications
5 years [1]
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