According to MSN, Lennox International, Carrier, Trane Technologies ... The “YVWH-200 Water-to-Water Variable Speed Dual Screw Heat Pump” reportedly has a combined coefficient of performance ...
Mark Woodruff, outdoor product manager at Trane Residential ... Features that can drive up heat pump pricing include size, efficiency, variable-speed blowers and cold climate capabilities.
The revamped factory will be the first in the U.S. to manufacture variable-speed compressors that use twin rotary technology for highly efficient ductless heat pumps, Mitsubishi said ... by Mitsubishi ...