Rinnai's Hydronic Thermostats are designed specifically for use with a Rinnai Hydronic Air Handler when paired with a Rinnai Tankless Water Heater.
The Rinnai Hydronic Thermostat is an electronic 24 vac, programmable, manual changeover, wall-mount thermostat. This thermostat uses two set points to maintain and control room temperature in both the heating and air conditioning modes. The thermostat is designed to maintain +/-2°F accuracy. No batteries are required; temperature, blower, mode, and installer configuration settings are preserved with power off.