A circulator or circulation pump is a special type of pump used to circulate gases, liquids or slurries in a closed circuit. They are commonly found in circulating water in hydronic heating or cooling systems. Because they only circulate the fluid in a closed loop, they only need to overcome the fri

Technological advancements within the industry allow for incorporating timers to limit the operations during specific hours of the day to reduce energy waste by only operating when occupants are likely to use hot water. Additional advancements in technology include pumps which cycle on and off to ma