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Costway 18000 BTU 21 SEER2 208/230V Mini Split Air Conditioner & Heater with Heat Pump

Costway 18000 BTU 21 SEER2 208/230V Mini Split Air Conditioner & Heater with Heat Pump

Prices as of September 30, 2026, as listed by each retailer — verify the current price on the retailer's site before purchase.

Price history tracked at Kohl's price tracker

14-day low
$1,174
Sep 21 · Kohl's
Best price
$1,174
−10% vs high
14-day high
$1,304
All stores

Today's best price is the lowest AskPrice has recorded · tracked since Jul 2026.

$1,304$1,239$1,174
Sep 17Sep 30
  • Kohl's
Lowest in 14 days: $1173.59 at Kohl's. Highest: $1303.99. Current best is 10% below the 14-day high.

About this product

The Costway 18000 BTU mini split air conditioner and heater provides year-round climate control with efficient cooling and heating for spaces up to 1250 square feet. It features an inverter-driven system using R454B refrigerant, delivering 21 SEER2 efficiency and 9.5 HSPF2 for reduced energy use. The indoor unit measures 39.76” x 8.66” x 12.4”, while the outdoor unit is 33.98” x 13.74” x 23.7”. With 7 operating modes, 8 fan speeds, and 4D airflow, it ensures even temperature distribution. A self-clean function and washable filters help maintain performance. Smart connectivity allows control via remote, WiFi, or voice commands through Alexa and Google Assistant. Additional features include a 24-hour timer, child lock, and chassis heating for reliable cold-weather operation.

  • 18000 BTU cooling and heating capacity
  • 21 SEER2, 9.5 HSPF2 efficiency
  • R454B refrigerant
  • WiFi and voice control via Alexa/Google
  • Self-clean function and washable filters
  • 1250 sq ft coverage area

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Costway 18000 BTU 21 SEER2 208/230V Mini — Price History