What do the numbers on a tire mean? The DOT number appears on the sidewall of all tires intended for sales in the U.S., and designates the location of manufacture, the week and year of production, and the specific tire.
Water heater anode rod or sacrificial anode is the important component part with only one purpose; to protect metal tank from corrosion. Use this article to learn how to replace the anode, installation tips, how it works, about different types and when to use each one.
In simple terms, when the thermocouple does not sense flame, it prevents the gas valve from delivering gas to the burner. It is, therefore, a key safety element of your water heater system. Quite often, a bad thermocouple is the reason a water heater pilot does not ignite or a burner does not stay lit. Continue to 2 of 8 below.