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.
Cycles where the maximum daily temperature is similar to what is shown below will have longer. shelf life than shown. Shelf life for product in inventory should be based on the average daily temperature. not the day's maximum temperature.