WaterFurnace® HVAC age

How to determine the date of production/manufacture or age of WaterFurnace® brand HVAC Systems.

The industry average service design life for most forced air furnaces is 15-20 years, and the industry average service design life for most air conditioning condensing units is 10-15 years. The average service design life of boilers can vary from as little as 10 years to as many as 50 years depending on the type and quality of materials used in their manufacture. Routine upkeep/maintenance, regional weather/climate, and location/placement of the mechanical systems will all play critical roles in the longevity of these systems.

Parent Company: Operating as independent subsidiary of NIBE, a leading heat pump manufacturer for the European market

Subsidiaries or other related brands: None Known

The date of production/manufacture or age of WaterFurnace brand HVAC equipment can be determined from the serial number located on the rating data plate.

Example serial number styles/formats found:

Style 1: 180100228
Style 2: UJ1087
Style 3: D8367019

Legend: Year is RED; Month is GREEN; Week is BLUE

Style 1: 180100228

Note: This is believed to be the current styling as of at least 2012

Year of manufacture can be determined by using the 1^st & 2^nd positions of the serial number

Month of manufacture can be determined by using the 4^th & 5^th positions of the serial number

Style 2: UJ1087

Note: This style used from 1985 to 2012

Year of manufacture can be determined by using the 1^st position of the serial number (see chart)

Month of manufacture can be determined by using the 2^nd position of the serial number (see chart)

Style 3: D8367019

Note: This style used prior to 1985

Year of manufacture can be determined by using the 2^nd & 3^rd positions of the serial number

Month of manufacture can be determined by using the 1^st position of the serial number (see chart)

WaterFurnace® History¹

1983 - Company founded in Ft. Wayne, IN as a McQuay distributor of geothermal products.
1985 - Purchases a water source heat pump product line from McQuay.
2014 - WaterFurnace is acquired by NIBE, a leading heat pump manufacturer for the European market. WaterFurnace continues to operate as an independent company, and now serves as the headquarters for NIBE's Energy business in North America.

¹Excerpts from https://www.waterfurnace.com/residential/why-waterfurnace/history-of-innovation

Every effort is undertaken to offer you correct and concise information to assist you in determining the age or manufacture date of HVAC/R equipment. Users relying on this information do so at their own risk.

Page last updated: 11/30/2023

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