The lab-test champion of portables — built for the rooms that punish them.

Whynter NEX Inverter Dual Hose Portable AC (14,000 BTU / 12,000 SACC, ARC-1230WN)

Whynter

Rtings' and TechGearLab's top-tested portable pulls a hot room down nearly 12°F in an hour and installs faster than any rival thanks to its stowaway hose. Choose it over the Duo for raw cooling in brutal rooms; choose the Duo for efficiency and a quieter idle.

If the Duo is the efficiency story, the ARC-1230WN is the brute-force one. TechGearLab measured an 11.9°F drop in 60 minutes — the biggest of any portable it tested, an Editors' Choice result — and Rtings currently ranks it the best portable AC it has tested. For west-facing rooms, top-floor bakes, and garages that defeat lesser portables, this is the unit that keeps up. Whynter's hose-in-hose NEX design gives it the same true dual-hose physics as the Duo, and it beats the Duo on livability details: the hose comes pre-installed and stows away on the unit for storage, the window kit seats in five to ten minutes (best install in TechGearLab's lineup), and an 80° auto-swing louver spreads air a fixed vent can't. Wi-Fi with Alexa and Google runs through the NetHome Plus app. Where it gives ground: it's mid-pack on energy efficiency — the inverter helps, but the Duo is measurably cheaper to run — and at 73–77 pounds with rear-mounted attachments it's awkward on stairs. At around $556, it's the pick when your problem is heat, not your power bill.

PickGrade may earn a commission from purchases made through links on this page, at no extra cost to you. This never affects our grades. Full disclosure.

Last reviewed Jul 5, 2026

What we like

• ✓Biggest measured temperature drop of any portable in TechGearLab's lab — and Rtings' current top portable
• ✓Fastest, cleanest install of the class: pre-installed stowaway hose, 5–10 minute window kit
• ✓Auto-swing louver actually distributes air instead of firing one cold beam
• ✓True dual-hose efficiency without two hoses cluttering the window

Trade-offs

• −Measurably less efficient than the Midea Duo over a season of runtime
• −73–77 lb with back-heavy balance — miserable on stairs and long carpet
• −58 dBA on high is workmanlike, not bedroom-quiet, while it's pulling a room down
• −Dim display and a merely serviceable app