Invest in a new tankless water heater for on-demand hot water Water heaters are an integral appliance for the modern ...

Modern water heaters do this much more efficiently ... pressurizes it and releases the heat into the water. The heat pump system is used in conjunction with backup resistive heating elements.

These days, humans have gotten all fancy-schmancy with their gas and electric water heaters. Heck, some are even using heat pumps to do the work as efficiently as possible. [HowToLou] got back to ...