This page lists portable air conditioning units in the 10,000–14,000 BTU range with dual-hose systems, available from Home Depot, Costco, or Amazon. Dual-hose units provide more efficient cooling than single-hose models.

• Price: ~$499.99
• Coverage: Up to ~500 sq ft
• Features:
  • Dual-hose design (separate intake/exhaust)
  • Dehumidifier and heater functions
  • HEPA filter included
  • Eco-friendly refrigerant (R-32)
• Link: https://shopwhynter.com/products/arc-14s2?variant=46343961641208

• Price: ~$575.00
• Coverage: Up to ~550 sq ft
• Features:
  • High-efficiency inverter compressor
  • Hose-in-hose design for tighter window fit
  • Heating function included
  • Wi-Fi and remote control
• Link: https://minisplitsforless.com/products/cooper-hunter-14000-btu-duo-hose-high-efficiency-inverter-portable-air-conditioner-and-heater-for-areas-up-to-550-sq-ft-includes-wifi-remote-control-window-kit?variant=43400948220149

• Price: ~$479.99–$494.00 (Costco, Sam's Club, Amazon)
• Coverage: ~450–500 sq ft
• Features:
  • Inverter dual-hose design
  • Smart features (app, Alexa/Google Home support)
  • Quiet and energy-efficient
• Link (Costco): https://www.costco.com/midea-duo-smart-inverter-portable-air-conditioner.product.100828479.html

• Brings in outdoor air to cool the condenser
• Prevents negative pressure inside your home
• Offers faster, more efficient cooling
• Especially effective for larger rooms (450–550 sq ft)

• 10,000 BTU → ~450 sq ft; 14,000 BTU → ~550 sq ft
• Most units include a window vent kit (usually 5” hose)
• Inverter models (like Midea and Cooper & Hunter) are quieter and more efficient
• Check return policies—some retailers have stricter rules on appliances

• Top Efficiency: Whynter ARC-14S2
• Smart Home Integration: Midea Duo
• Inverter Performance: Cooper & Hunter

Let me know if you’d like to add a comparison table or user reviews!