I have inspected the furnace and found that it is working properly. I have tested the thermostat, checked the pilot light, and inspected the burners for proper operation. I have also checked the flue and venting system to ensure that it is clear and not blocked. I have tested the thermostat and adjusted it as needed to ensure that the furnace is heating the home effectively. I have also checked the furnace's safety features, such as the carbon monoxide detector and the smoke detector, to ensure that they are working properly. Finally, I have cleaned the furnace and replaced the air filter to improve its efficiency and performance.