A limited warranty is the warranty provided by the manufacturer. It’s called “limited” because it’s typically limited to a specific length of time and to specific items that it covers. Greenwood appliances are backed by one of the best warranties in the industry. Our models leave the factory with a 1-year limited warranty and upon timely registration, an optional 7-year limited warranty. Your Greenwood installer provides service and installation in support of this warranty. A heating system is a major purchase, so you’ll want to make sure you fully understand the warranty before you purchase your system.