Undergraduate certificate · Knoxville, Tennessee

Is Heating, Air Conditioning, Ventilation and Refrigeration Maintenance Technology/Technician (HAC, HACR, HVAC, HVACR) at Tennessee College of Applied Technology-Knoxville worth it?

Medium confidence Medium confidence: 40–99 graduates behind the earnings figures.

The verdict · all families, in-state, half paid with loans

Pays back fast: graduates typically recover the cost in about 1.4 years.

Earnings 1 year after graduating: $46,358; Treasury AY2020-21, AY2021-22 pooled earnings cohort measured in CY2022, CY2023, inflation adjusted to 2024 dollars
Earnings 4 years after graduating: $57,376; Treasury AY2017-2018, AY2018-2019 pooled earnings cohort measured in CY2022, CY2023, inflation adjusted to 2024 dollars
Typical federal debt at graduation: Not enough borrowers to report; NSLDS pooled AY2022-23, AY2023-24 cohort
Net cost to graduate, all families: $11k (likely $11k – $11k); AcadYr 2024-25, reported in IPEDS DCY2025-26
Earnings bump, year 4: $20k a year vs high-school graduates aged 25–34 in TN; 2023 ACS 5-year pooled, adjusted to 2024 dollars
Payback: 1.4 years (likely 0.9–2.5); Bump vs net cost plus loan interest
10-year net return: $140k (likely $65k – $229k); Today's dollars
20-year net return: $389k (likely $221k – $596k); Today's dollars
Odds of finishing (school-wide): 73%; Fall 2019 or AcadYr 2019-20 cohort (differs by institutional calendar), reported in IPEDS DCY2025-26