Is a dual hose portable AC worth the extra cost?

Yes, if you're cooling rooms over 300 sq ft or running the AC frequently. The efficiency gain of 30-40% translates to lower electricity bills that can offset the higher purchase price within 1-2 summers.

Can I convert a single hose AC to dual hose?

No — the internal design is different. Single hose units pull room air through the condenser. Dual hose units have a separate air path for condenser cooling. This isn't something you can modify after purchase.

Best Dual Hose Portable ACs 2026