Dual Hose

Single vs. Dual Hose Portable ACs | Sylvane

Dual Hose

http://bit.ly/PACBuyGuide Portable Air Conditioners use either a dual-hose or single-hose system to vent air. Dual-hose ACs are more efficient, because they don't rely on the air inside your space to cool their internal parts. But single-hose ACs tend to be cheaper and use less energy overall dur...

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