System is running upon arrival. Dan has no challenges with systems or airflow. Furnace is located in hallway closet. Thermostat is responsive and calling for heat. Disposable filter was dirty and should be replaced, Dan doesn’t have any but will probably be visiting the retail outlet to obtain some now. https://charliehgeax.frewwebs.com/31154292/indicators-on-heating-installation-and-repair-in-roseville-you-should-know