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.
The water heater circuit wires both connect to a 2-pole 30 amp 240 volt circuit breaker for proper circuit overload protection. The ground wire is connected to the ground bar of the panel. All the circuit wires should be verified, identified and marked.