Stand directly in front of the furnace - looking straight at the front. There will be two large panels - one with vents and one without.
Open the vented front panel on the cabinet of the furnace. If there is not an obvious handle, reach to the bottom of the panel and feel for a finger sized groove. Lift straight up until you feel the panel release and then pull the panel toward you.
Locate the model and serial number label inside the cabinet of the furnace. The model number will be four letters, a dash, and then six more characters while the serial number is ten characters long.
Things You Will Need
- Furnace label
- If the label is missing or damaged look for some indication of the company that installed the furnace because they should have records regarding the model and serial number.
- Your model and serial number are often recorded on invoices at the initial sale of the furnace and subsequent maintenance invoices.