NAVIEN 30012907A Thermister Zone Controller

The Navien Tankless Water Heaters 30012907A Thermister Zone Controller is a small but essential part of Navien’s NHB series tankless water heaters. It has the function of a thermostat, which is responsible for measuring the temperatures of water in the unit. This temperature information feedback is then used by the water heater to fine-tune its water flow rate and heating control. The zone controller optimizes the flow of water to provide the right hot water at the right time in your home to avoid the discomfort of hot and cold water in between. This means several advantages for homeowners.