About Home Service Pros 247

Home Service Pros 247 is an independent reference that answers one practical question about the equipment in a house: how old is it?

What the site is for

The age of a furnace, an air conditioner or a water heater decides a lot: whether a repair is worth paying for, what a home inspection report should say, how much to set aside after buying a house. The date is printed on almost every unit, but it is hidden inside the serial number in a code that differs from brand to brand and changes over the years.

This site collects those codes for 41 brands, explains each one with a worked example, and puts them behind a decoder that does the reading for you. It also reads the size of heating and cooling equipment from the model number, and provides sizing calculators for the equipment that replaces an old unit.

Who uses it

  • Homeowners deciding between a repair and a replacement.
  • Buyers and sellers checking the age of the equipment in a house.
  • Home inspectors and real-estate agents who date equipment on every job.
  • Technicians who meet a brand they do not service every day.

How the information is checked

Every serial format on the site is tied to the sources it came from, and a format is published only when the manufacturer states it or two independent references agree. The full process, and the limits of what a serial number can tell you, are on the method and sources page.

Independence and funding

Home Service Pros 247 is not affiliated with, endorsed by or sponsored by any manufacturer. The site is free to use. It may carry advertising and links to service providers that pay a referral fee when a reader asks for quotes. Neither changes what the decoder reports.

Contact

Corrections and questions: corrections@homeservicepros247.com. See contact and corrections for what to include.