ECO2S Support – How To Setup an ECO2S Heater as a 1-Stage Heater How To Setup an ECO2S Heater as a 1-Stage Heater *Does not apply to KB ECO2S Related Articles ECO2S Support Home Page Pairing A Sensor How To Pair Sensor with PX ECO2S How To Pair Sensor with LPW ECO2S How To Pair Sensor with KB ECO2S+ Setup For 1-Stage Heating How To Setup an ECO2S Heater as a 1-Stage Heater Error Codes Error Codes – Troubleshooting Can’t find your answer in our support center? Contact us directly.