Fall heat maintenance one system gas furnace. Upon arrival the system was turned on in heat mode and tested. The blower motor, heat exchanger, burners, flame sensor, hot surface igniter, furnace safeties, filter, duct system, attic insulation, vent system, gas lines, and electrical connections were all inspected. The filter was changed with one provided by the homeowner. It is still recommended to have an attic tent installed over the attic access to reduce heat transfer from the attic. The system is heating properly at this time.