The Mitsubishi HC3800 projector comes with a two year, parts and labor warranty.
Two year warranties are pretty much the standard for 1080p projectors, with some models offering three, and a number of lower cost, entry level models with only one.
Many of the projectors the HC3800 competes directly against, including the lower priced Optoma HD20 and BenQ W1000, come with only a single year warranty, as do a few more expensive projectors as well.
As an added benefit, the lamp comes with a one year warranty. I usually don't mention lamp warranties as they are typically very short, such as 90 days, or maybe 180 days or 500 hours which ever comes first. A one year, no hour limit warranty, however is exceptional, for a lamp warranty, and might even come in handy for someone running more than 40 hours a week.