Taco’s Hot-Link system for hot water recirculation is said to be suited as a retrofit solution for homes without a dedicated return line. The Hot-Link system includes a composite bypass valve and a stainless steel circulator with a timer and line cord. Its one-pump, one-valve combo is easily installed and does away with the need to run a dedicated return line back to the water heater. The Hot Link technology eliminates the wait for hot water.
Taco Inc. www.taco-hvac.com