Service Equipment such as Heaters, Air-Conditioners and Water Heaters all have an expected service life. Although the actual service life depends on factors including quality of construction, maintenance and environmental conditions; Consistent with industry standards the expected service life is as follows:
Central air-conditioning unit 12-15 years
Gas furnaces 15-20 years
Electric furnaces 20-30 years
Hot water heaters 5-12 years
How can you determine the age of HVAC and Water Heaters?
Look up the manufactured date of your unit using https://www.building-center.org to determine how many year you can expect to get out of it before having to repair or replace.
Take a picture of the unit's identification tag with will include the serial number and identify the brand of the unit.
Here’s how to do it:
Select HVAC or Water Heater
Scroll down and select the first letter of the brand name. M for "Maytag".
Select the Brand Name from the list.
Compare your unit's serial number to the styles of serial number listed to age your unit.