066 - Types of HVAC Systems and How to Choose

Architect Exam Podcast · May 18, 2026 · 20m

There are a lot of different types of HVAC systems, and if you're studying for the ARE or coordinating with mechanical engineers, you need to know what each one does and when to use it.

In this episode, Layla breaks down every major HVAC system type into four categories: all-air, water-based, refrigerant-based, and packaged systems. She covers VAV, fan coil units, VRF, rooftop units, PTACs, radiant floor heating, chilled beams, DOAS, split systems, and more.

Then she walks through how to match each system to different building types, which is exactly how the PPD and PDD exams test this…