Water Heating Systems

Today’s water heating technologies offer reliable, cost-effective solutions that can meet your facility’s unique needs.  Georgia Power invites you to explore the wide range of water heating solutions available to you.

Waste Heat Recovery Unit (WHRU)

Waste Heat Recovery Units (WHRUs) reduce utility consumption, increase efficiency and lower operational costs—all while providing ample heated water. These money- and energy-saving units harvest heat emitted by equipment that generates a large amount of hot flue gasses, such boilers, ovens, furnaces and kilns.

 

Waste heat recovery (desuperheater) water heater

The biggest advantage of waste heat recovery (desuperheater) water heater is free water heating energy. Installed in a vapor compression system between the compressor and the condenser, this unit utilizes hot refrigerant vapor exiting the compressor to heat water, but does not remove enough heat from the refrigerant to cause it to condense. This makes it possible to retrofit existing vapor compression systems with desuperheaters without redesigning the refrigerant circuit. Heated water is circulated into a conventional water heater tank for storage. A backup water heating energy source is necessary to provide hot water when the vapor compression device (e.g., air conditioner, heat pump, or refrigerator) is not in use.

 

Waste heat recovery (full-condensing) multifunction

Incredibly cost-effective and conveniently multi-functional, the waste heat recovery (full-condensing) multifunction technology is similar to that of desuperheater water heaters, but the system is designed to fully condense refrigerant, allowing the capture of more waste heat for water heating. More importantly, it allows stand alone water heating capability. For example, when incorporated in an air conditioner or heat pump, the unit has multiple operating modes: space heating only, space cooling only, space cooling plus water heating, and water heating only. On an annual basis, because of their stand-alone water heating capability, such systems provide considerably more hot water than do desuperheaters.