Yes, there are several energy-saving tips for hot water heater use. First and foremost, it’s important to choose an efficient model of hot water heater that has been certified by a reputable energy efficiency rating system. Different models have different efficiencies, so make sure to compare ratings before making your purchase. Additionally, make sure the hot water tank is properly insulated; this can reduce heat loss by up to 45%.

Another great way to save on energy is to install a low-flow showerhead in your bathroom – some low-flow models are capable of reducing flow rates by 30%, resulting in significant savings when it comes time for your utility bill each month. Also, consider investing in an on-demand or tankless type of water heater; these models don’t store heated water like traditional storage tanks do and offer even greater reductions in energy usage over time due to their increased efficiency levels and ability to only heat as much water as you need at any given moment.

Finally, be mindful of how long you let the tap run while waiting for the desired temperature – leaving the faucet running can literally waste gallons! Consider using a pitcher or bucket filled with cold or warm (not hot!) water while you wait until the correct temperature reaches your tank system prior to washing dishes or taking showers/baths; not only does this conserve energy but it also helps keep plumbing issues from arising due to minerals existing within municipal treated supplies frequently build up within pipes if left stagnant too often!