# Understand maintenance and question cleaning claims

Lesson 3 of [HVAC foundations for homeowners and buyers](https://hvacpros.fyi/academy/hvac-buyer-foundations.md), 10 minutes.

Routine HVAC maintenance and duct cleaning are different purchasing decisions. ENERGY STAR describes contractor maintenance checks for controls, electrical connections, condensate drainage, cooling components and heating components. EPA does not recommend routine duct cleaning as a general rule; its…

The rest of this lesson is for learners enrolled in the course. [See how HVAC foundations for homeowners and buyers works](https://hvacpros.fyi/academy/hvac-buyer-foundations.md).

Also on the [web page](https://hvacpros.fyi/academy/hvac-buyer-foundations/maintenance-and-claims).