Gas water heaters are less expensive to run than electric models and have a faster hot water recovery rate, which is attractive to large families. In the United States, gas powered water heaters are used in 60 percent of residences, making them the heater of choice as of 2015.
Some lifetime warranties cover the product for as long as you own it, which means the warranty is disclaimed (or voided) the moment it is resold or given away. Look for the word limited in front of the words lifetime warranty, which will be accompanied by language (usually in fine print) explaining its terms.
The Product Life Cycle (PLC) is a fundamental concept in Marketing that defines specific characteristics of products and markets at various points in their evolution. Less common is the discussion of the company evolution and characteristics at different stages, also known as the Organizational Life Cycle (OLC).