The most common type of water heater in use in Hawaii is electric. This section will cover strategies on how to reduce its use. There are two methods for managing energy consumed by hot water. The first, and most available to renters, is to reduce hot water consumption. The second option, not always available to a renter, is water heater modification and / or replacement. To learn about how your electric water heater operates, take some time and watch this video. Afterward, review the hot water reduction section below, followed by water heater options.