The HWR Platinum is an outdoor reset boiler or motorized valve heating control. The HWR Platinum will start and stop the boiler and modulate a motorized valve, to vary the system water temperature in a buildings radiation in accordance with changes in outside temperature based on the Outdoor Reset Ratio settings. Unlike other outdoor reset controls that uses the space temperature to shutdown the system, the HWR Platinum monitors the space temperature over a time period and uses that data to help reduce temperature fluctuation in the building. In addition to building heating, the HWR platinum offer Domestic Hot Water Priority. Add to that its capability of controlling the domestic hot water pump.