Product Warranty

Rinnai is committed to providing our customers with best-in-class, reliable products through authorized PROs. And we offer the industry's leading warranty so you're confident you've made the right choice when choosing Rinnai. Some restrictions apply.*

Register Your Product to Maximize Your Labor Coverage

All Rinnai tankless water heaters come with a reasonable labor coverage of 1 year. You have the opportunity to extend this coverage to 5 years if you register the product within 90 days of your purchase. Labor coverage does not apply to all products. See details in the warranty documents below or on our Extended Service Plan if you purchased a model from our SENSEI (SE+) Series.

Register Your Product

Warranty Documents

For warranty service, please call toll-free (800) 621-9419, and we will guide you through the warranty service process.

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Rinnai Warranty Claim Submit Payment Process document
PDF 213.85 KB
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Rinnai Roof Flashing Warranty Claim Letter
PDF 37.16 KB
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W 8 BEN E
PDF 315.39 KB
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W 8 BEN
PDF 66.83 KB
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W 9
PDF 103.61 KB

Rinnai is now offering optional extended warranty labor coverage on select models of tankless water heaters. Register within 90 days for the extended labor coverage. Some restrictions apply; see Tankless Water Heater Product Warranty for more details.*

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Rinnai Warranty High Efficiency HE Tankless Water Heater
PDF 337.87 KB
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Rinnai Warranty High Efficiency Plus HE Tankless Water Heater
PDF 335.85 KB
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Rinnai Warranty Super High Efficiency SE Tankless Water Heater
PDF 339.63 KB
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Rinnai Warranty Super High Efficiency Plus SE Tankless Water Heater SENSEI
PDF 334.3 KB
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Rinnai Warranty Vent Free Van Convector
PDF 310.8 KB
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Rinnai Warranty Condensing Gas Boiler I Series M Series
PDF 287.82 KB
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Rinnai Warranty Direct Vent Wall Furnaces
PDF 290.43 KB
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Rinnai Warranty Demand Duo 119 Gallon
PDF 498.06 KB
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Rinnai Warranty Demand Duo 80 Gallon
PDF 232.81 KB
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Rinnai Warranty Commercial Tankless Water Heater C199
PDF 515.83 KB
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Rinnai Warranty Commercial Tankless Water Heater SENSEI CU199 CU160
PDF 701.79 KB
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Rinnai Warranty Tankless Rack System
PDF 384.33 KB

*Note 1: If you purchase a product from an unauthorized PRO, or if the original factory serial number has been removed, defaced, or altered, your Rinnai warranty will not be valid.

Unfortunately, there are some websites and online dealers who claim to be authorized Rinnai resellers but are not. Products sold on these websites or from these online dealers do not carry a warranty from Rinnai. When you purchase products from an unauthorized website or online dealer you are taking a risk, because these products may be counterfeit, used, defective, or may not be designed for use in your particular installation. Please product yourself and your Rinnai product by ensuring that you only purchase Rinnai products from an Authorized Rinnai Dealer. View a list of Rinnai authorized online dealers.

*Note 2: Rinnai is making a change to the language in its warranty terms and conditions found in the User Installation manuals. Statement 1 below will be replaced by statement 2 in all future manuals. All warranties (Old or new manual) will be honored as written in Statement 2.

  1. "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 trained and qualified professional who has attended a Rinnai installation training class before installing this product."
  2. This Limited Warranty applies only to products that are installed in the United States and Canada. Improper installation may void this Limited Warranty. It is recommended that a trained and qualified professional who has attended a Rinnai installation training class complete your installation."

*Note 3: California and Quebec residents and residents of other jurisdictions that prohibit warranty benefits conditioned on registration, registration is not required to obtain longer warranty periods and failure to register your product does not diminish your warranty rights.

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