Just finished up a Routine Maintenance & Tune Up on a 24 year old York Gas Furnace located in the Bear Delaware area. For being 24 years old, this unit is looking pretty good! Everything was fine except the capacitor and the fan blades, which were pretty dirty. All other calculations show that there is a healthy unit keeping everything smooth and comfortable! Thank you Theresa and RJ for allowing us in your home and trusting us with your family’s comfort. Enjoy the new year!