Conventional or storage water heaters - gas or electric typically last between eight and ten years on average . Tank size varies from 30 gallons up to 80 gallons for residential use and more than 100 gallons for commercial purposes. Warranty also varies from 3 years to 12 years, some manufacturers offer lifetime warranty on their electrical brands. Reasons for replacement are leaks, pass the warranty, not enough hot water, need of bigger tank or more efficient unit. Call us if it's time! We will help you choose and install the right one for you for reasonable price and in short time manner.

Tankless water heaters - gas or electric lasts longer than the conventional water heaters and it doesn't have storage tank that needs to be heated when the water temperature drop, it works only when you use hot water. That makes them more efficient than conventional water heaters and saves money on a long run. It's more cost effective, but more expensive to install. 

Point of use is electric water heater with small tank up to 10 gallons or tankless and it serves a single fixture that is  usually a sink and it's located under the sink that serve. The purpose of it is to give you instant hot water on single fixture located too far from your water heater.