Verdict
Head-to-head · Best Portable Air Conditioners

LG LP0621WSR vs Whynter ARC-14S

Which is the better buy? Side-by-side on rating, price, strengths, and watch-outs — with the published ratings we averaged to get there.

The short answer

Whynter ARC-14S comes out ahead by a narrow margin (4.0 vs 4.2). The gap is mostly about Hot-climate buyers who want strong dual-hose cooling at a lower price than the Midea Duo and don't mind a heavy, louder unit. — read the strengths below before deciding.

LG LP0621WSR
Ranked #5 in Best Portable Air Conditioners
LG LP0621WSR
$320

The LG LP0621WSR is the small-room value pick — a compact 8,000 BTU ASHRAE (6,000 BTU DOE) unit that cools spaces up to 250 sq ft quickly and quietly for a lower price than the bigger units here. Reviewers praise its ease of use and fast small-room cooling, noting it runs as low as 51 dB. It is not for large rooms and lacks smart features, but for a bedroom or office on a budget it is an efficient fit.

Strengths
  • Affordable, compact unit ideal for small rooms up to 250 sq ft
  • Cools a small room quickly — one office in about 15 minutes
  • Quiet at low fan, as low as 51 dB
Watch-outs
  • Low 6,000 BTU DOE capacity limits it to small spaces
  • Single-hose design is less efficient than dual-hose units
  • No Wi-Fi or inverter; basic feature set
Whynter ARC-14S
Higher ratedRanked #3 in Best Portable Air Conditioners
Whynter ARC-14S
$499.99as of Jun 7

The Whynter ARC-14S is a long-running dual-hose portable AC that cools strongly for hot climates, but reviewers are candid that its real SACC capacity (~9,500 BTU) falls far short of its 14,000 BTU ASHRAE claim. ConsumerAnalysis now recommends the Midea Duo over it on efficiency. It remains a solid dual-hose option, but at over 80 lbs with no handles and louder, less efficient operation, it trails the newer inverter units.

Strengths
  • Dual-hose design cools more efficiently than single-hose units
  • Strong cooling output for hot climates
  • Eco-friendly CFC-free refrigerant and recognized brand
Watch-outs
  • Real SACC capacity (~9,500 BTU) is well below its 14,000 BTU ASHRAE claim
  • Very heavy at over 80 lbs with no handles, hard to move
  • Loud and less energy-efficient than the Midea Duo

How they stack up

LG LP0621WSR

The smallest and most affordable unit here, sized for rooms the larger Midea Duo MAP12S1TBL, LG LP1419IVSM, and Whynter ARC-14S would over-cool. Like the LG LP1419IVSM and Black+Decker BPACT12HWT it is a single-hose design, so it is less efficient than the dual-hose Midea Duo, but its low capacity is well-matched to small spaces.

Whynter ARC-14S

The other dual-hose unit alongside the Midea Duo MAP12S1TBL, but older and without an inverter — so it is heavier, louder, and less efficient than the Duo. Its dual-hose design still makes it more efficient than the single-hose LG LP1419IVSM, LG LP0621WSR, and Black+Decker BPACT12HWT in principle, though its real SACC capacity is lower than its rating suggests.

Specs side-by-side

SpecLG LP0621WSRWhynter ARC-14S
BTU8,000 ASHRAE / 6,000 DOE14,000 ASHRAE / ~9,500 SACC
Coverage AreaUp to 250 sq ftUp to 500 sq ft
NoiseAs low as 51 dB~59 dB
Energy StarNoNo
Hose CountSingleDual
ModesCool, fan, dryAC, fan, dehumidifier
DrainAuto evaporationSelf-evaporating
ControlsRemote + LCD
Weight80+ lbs
← See the full ranking of best portable air conditioners