Compare tool

Compare models side by side

Pick two to four models. The best figure in each row is marked, and every number comes from the maker, NEEP or ENERGY STAR. Copy the URL to share a comparison.

All mini-splits & heat pumps ranked →All dehumidifiers ranked →All window, wall & room units ranked →All heating ranked →All parts, tools & supplies ranked →

SpecWhynter ARC-1230WNH NEX Inverter Portable AC with HeatMidea U 12,000 BTU (MAW12U1KWT)
PhotoWhynter ARC-1230WNH NEX Inverter Portable AC with HeatMidea U 12,000 BTU (MAW12U1KWT)
Our scoreSCORE6.5 / 10SCORE7.5 / 10
Our takeThe portable we'd buy: hose-in-hose inverter, 12,000 BTU SACC, a published CEER of 14.2 and a heat pump. The catch is the mail-in warranty and an authorized-dealer requirement.The 2026 12,000 BTU U at CEER 16, ENERGY STAR Most Efficient and not recalled. Little owner history yet.
TypePortableU-shaped window
Cooling (DOE / SACC)12,000 BTU12,000 BTU
CEER14.216best
InverterYesYes
Heat modeHeat pumpNone
Noise, lowest setting (maker figure)42.5 dBAn/a
Window width, min28 inn/a
Window width, max82 inn/a
Warranty1 yrn/a
ENERGY STARNoYes
Watch out forWarranty is 1 year plus 3 years on the compressor, but service is mail-in, only within the 48 contiguous states, needs an authorized Whynter dealer, and you pay return freight after month two. Portable ACs are excluded from ENERGY STAR's room AC program. ARC-1230WN and ARC-1230WN2 are similar inverter models with no heat.U1KWT and the recalled U1QWT differ by one letter (K vs Q).
More