Many Home Owners wait up to 60-seconds or more for hot water to run from their tap or shower…with Grundfos the wait is over!
Convenience and water conservation is here now. With a Hot Water Recirculation System, the comfort of hot water in an instant and the elimination of water waste is a click call away at plumbonline!
Hot water recirculation provides a continuous flow of hot water in the hot water supply line of your home – when you need it. Without a Hot Water Recirculation System, unused hot water in the line cools and must be evacuated before hot water from your hot water heater can reach the desired tap. As a result, litres of water are wasted.
There are two types of HWR systems suitable for applications in new and established homes.
New construction – Return Line
When constructing a new home, a dedicated return line is installed between the end of the hot water supply line and the water heater. A circulator pump is installed at the point where the return line connects to the hot water tank. The circulator then pushes heated water from the tank through the supply line and back through the return line.
Retrofit for existing homes – Comfort System
This system uses the cold water supply line as the “return-line” to the water heater. A circulator pump is used to create a pressure differential that allows the cold and cool water in the hot water supply line to by-pass (at low volume) into the cold supply line through a patented thermostatically controlled valve that is mounted under the sink furthest from the water heater.
The pump is suitable for open and closed systems however, it must be installed indoors and should only be fitted into pressurised hot water circulation systems.