What Are the Pros and Cons of DX Coils? What Are the Pros and Cons of DX Coils?
Money Under 30
by Editorial-teamJanuary 27, 2026
Explore the pros and cons of DX coils in HVAC systems, including cost, responsiveness, maintenance, scalability, and when alternatives like chilled water may be a better fit. Direct expansion coils (usually shortened to DX coils) are everywhere in HVAC and process cooling, yet they’re often treated as a default choice rather than a deliberate one. They show up in rooftop units, split systems, air handlers, and countless packaged solutions. Because they’re so common, it’s easy to assume…
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Originally published on Money Under 30 on 1/27/2026