Show me a tank with 10 year warranaty and I show you a tankkless with
30 year , wake up moron, tankless are pipe with Â*coil- Hide quoted text

The longest tank heater warranty is the same as the longest tankless, 12
years.

http://www.consumerreports.org/cro/a...oling-and-air/
water-heaters/waterheater-tips-205-gas-hot-water-heater-electric-hot-water-
heater/overview/

The expected life of a tankless system however is roughly double the
tank, and maintenance is cheaper. See

http://www.eere.energy.gov/consumer/...ing/index.cfm/
mytopic=12820