Inspect Heater

      A daily external inspection can catch heater problems before they become serious. Look for signs of overheating (discoloration, deformation) and schedule an internal inspection if they appear. In many cases a minor refractory failure can be repaired before it becomes a major problem. Keep an eye on the heater exhaust as smoke may indicate a poorly adjusted burner or a tube leak. Again a small tube leak caught early will be easier to repair than a leak that has been allowed to develop over time.