What happens when you cut open a water heater? What about four of them? When Matt Risinger peeks into a standard water heater, there's plenty of scale at the bottom. How efficient could a tank be with all that build-up? It probably required double the amount of electricity to work by the end of its lifetime. This leads us to some of Risinger's best practices when it comes to water heater tanks make sure a water heater is in the first ⅓ of energy use, it is flushed often, and the thickness of the tank is considered. Segmented anode rods might be something to consider in terms of space saving too, and don't forget to check your EF ratings! Watch the full video to learn more!