He tightens electrical connections, lubricates moving parts, calibrates the thermostat, verifies the integrity of the heat exchanger and carefully cleans all components
I live in the northeastern part of the country. We are rather well-known for the severity of our winter weather. The wind blows across one of the Great Lakes and drops a tremendous amount of snow. Plus, that bitter wind chill makes sub zero temperatures feel even colder. It is often dangerous to spend time outdoors. There are frequent school and road closings, travel advisors and blizzard conditions. The heating system might just be the most important appliance in the home. We rely on our furnace for approximately eight straight months. Because the heating system was such a significant investment and has such an impact on the household budget, I do my best to take very good care of it. I am diligent about replacing air filters every month. I know that air filters are designed to protect the inner workings of the furnace from dust and other contaminants. If the filter becomes clogged with debris, airflow through the system becomes restricted. The furnace needs to run longer and work harder to match the thermostat setting. There’s an increased risk of overheating and burning out. I also ended up paying much higher utility bills for inferior comfort. I also schedule professional maintenance for the furnace sometime in the fall. I have a licensed contractor provide a thorough troubleshooting before it’s time to start up the heater for the first time. The technician uses diagnostic software to test operation and identify any concerns. He tightens electrical connections, lubricates moving parts, calibrates the thermostat, verifies the integrity of the heat exchanger and carefully cleans all components. This service ensures that the furnace is ready to handle the excessive workload.