The Enviroheat heat pump hot water systems are manufactured by the world's leading appliance manufacturer. This heat pump hot water system was first introduced in Europe more than a decade ago and has demonstrated performance in temperatures as low as -7°C. It has the greatest performance of any system in its class, saving up to 71 percent more energy than a conventional water heater. Enviroheat is Envirosun's sister brand for solar hot water systems. For more information visit now.