This energy-saving tip is provided by CleanEdison.
Having a properly maintained water heater is like going to the dentist: No one wants to do it, but it’s gotta be done. Ideally, you should have an inspection and necessary maintenance performed on your water heater once a year.
Since you’ve already done all that hard work to use less hot water, it’s pretty important to make sure that your water heater is properly insulated and working at maximum efficiency.
If you have an older model this is especially important, as it does not have the fancy new features such as built-in heat traps and demand response. Most water heaters last 10 to 15 years. Up until then, have an annual inspection performed.