Repair or Replace
Dating the equipment from its own label and working out, with age and repair cost, when replacing beats fixing it one more time.
- Repair or Replace HVAC Age by Serial Number: Decoding the Date Carrier starts your warranty 90 days after manufacture if the install date can't be proven. The serial number is the proof. How each brand encodes the date.
- Repair or Replace Repair or Replace HVAC: Where the $5,000 Rule Breaks Three rules of thumb, one nineteen-year-old furnace, two opposite answers. Where those rules came from, where they fail, and the arithmetic underneath them.