Answer Bank :

1. Conventional hot water circulation pumps typically operate on a continuous basis, 24/7, whether or not people are actually using hot water. This is an excessive amount of pumping as there are only two times that the pump should be circulating hot water: 1) When there is demand for hot water, and 2) When there is no hot water in the pipes. By using sensors that detect both hot water demand and loop water temperature, the D'MAND CIRC® operates more efficiently than any other control strategy that is available.

2. Installation of the D'MAND CIRC® usually takes between 1-2 hours and is done by a trained plumber or boiler technician.

3. The D'MAND CIRC® helps to reduce the amount of heat energy loss in the pipes by keeping the pump from running when it doesn't need to. Minimizing these heat losses means that your water heater or boiler consumes less fuel to make up for these losses.

4. The D'MAND CIRC® has been proved to save 10-30% of a hot water system's energy consumption in independent studies. These results vary from building to building depending on a number of factors, including: Building size, occupancy, pipe conditions and water heater configuration.

5. When potable water is heated, the chemicals that are used to treat it take on more abrasive characteristics. Circulating this hot water through pipes on a continuous basis creates friction and slowly degrades the pipes from within, eventually leading to small pinhole leaks. These pinhole leaks, if not detected, can become bigger over time and create water damage to the building on top of lowering the efficiency of the water heating system. Using integrated smart controls, the D'MAND CIRC® shuts itself off when hot water delivery is not required and may operate as little as 1 hour per day, or less. This substantially reduces the amount of friction and wear on the pipes, saving you time and money on costly repairs and wasted water.

6. The D'MAND CIRC® can be retrofitted into any existing building that has a hot water recirculation system. Typical buildings include: Multifamily, hotels/motels, schools, dormitories, office, retail….etc. Even if the building does not have a dedicated return line, the D'MAND CIRC® may be installed at the furthest fixture on the line and activated using motion sensors or push buttons from any fixture in the building.

7. This varies from building to building and is in part a function of hot water usage patterns. In many multifamily buildings, for example, the D'MAND CIRC® may run 1-2 hours per day. However, in a building that has set schedules, such as an office or school, it may run much less.

8. Some utilities or state agencies do offer rebates as an incentive for implementing the D'MAND CIRC®. To see if your building qualifies for any local or regional rebate incentives, click here.