On Watch Monitoring Let Houle install the OnWatch SecureHeat Monitoring System. Look how you benefit: FREE MONITORING FOR THE FIRST YEAR! Connects to your boiler and notifies us immediately if your heating system fails or reaches a predetermined low temperature level. Battery and temperature sensor provide back-up protection during power failures. Constantly checks battery, wiring and sensors and notifies us of any problems. Easy installation on all common heating systems. Offers peace of mind and heat protection for: People who travel Homes unoccupied for a length of time People with second homes Schools & churches Vacation condos Commercial buildings Call us at 207-872-6762 for more information.