The Geo-Chiller(tm) fromApplied Scientific Research, Inc.(Crown Point, IN) is designed to keep kitchens cool year-round. The unit is suspended from the ceiling and a plumbing retrofit passes the tap water from the inlet of the hot water tank to the unit at 55 degrees to 60 degrees F. The water circulates through the unit absorbing unwanted heat, preheating the water back into the hot water tank. No water is wasted, according to the manufacturer.