LANCASTER, PA. — Hot water recirculation for domestic water systems has created a lot of buzz these days, spurred primarily by consumer demand for hot water instantly at the tap. Recirculating hot ...

A: You need a hot-water recirculation system. Instead of water moving in only one direction, from the water heater to the bathroom, it also moves cooled water from the bathroom to the water heater, ...

Q: I am having a problem with hot water in my 2-year-old house. My bathroom and water heater are located on opposite sides of the house, and I have to wait forever to get hot water for a shower. I ...

In August’s column, I discussed three-way control valves, their associated bypass pipes, and the importance of a balancing valve being located within the bypass pipe. Such balancing valves are needed ...

Bypass pipes, accompanied by a three-way control valve, are often seen in hydronic systems at both served loads (e.g., reheat coils) as well as at primary equipment (e.g., cooling towers). Reasons for ...