COSTWAY 12000 BTU Mini Split Air Conditioner and Heater

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Product guide

COSTWAY 12000 BTU Mini Split Air Conditioner and Heater

COSTWAY Mini Split is a 12000 BTU ductless air conditioner and heater with inverter operation, remote control, and several operating modes. The listing describes cooling and heating, but also includes conflicting installation and coverage details that buyers should resolve before choosing a system.

At a glance

Cooling and heating are described, with auto, cool, dry, heat and fan modes in the feature text.
Inverter operation, four fan speeds, sleep and ECO modes, iFEEL and turbo are listed.
A remote timer is described as adjustable from 0.5 to 24 hours, with remote display shutoff after inactivity.
The feature text describes a washable filter, self-cleaning and outdoor-unit auto-defrost.
The product text says installation should be performed by a licensed HVAC installer.

Price

$499.98Save 11%

Reference price: ~~$559.00~~

Price checked: Nov 13, 2026

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Pros and cons

Pros

Cooling and heating functions offer year-round use from one listed system.
The listed modes and fan speeds provide more control than a single cooling mode.
A remote timer and sleep mode may be useful for bedroom use.

Cons

A licensed HVAC installer is specified for installation, so this is not presented as a plug-in room air conditioner.

Technical specifications

27 specifications

Identity
Brand	COSTWAY
Model	Mini split

Cooling and heating
Cooling capacity	12000 british thermal units
Heating capacity	12300 BTU
Rated capacity	1 tons
Application	Cooling and Heating
Operating modes	Cooling
SEER	20
Listed floor area	750 square_feet
Refrigerant	R-32

Features
Listed features	4 Way Swing, Auto Clean, Dehumidifier, Dust Filter, Eco Mode, Energy Efficient, Fast Cooling, Heating And Cooling Function, Inverter Compressor, Turbo function, iFEEL
Filter type	washable
Inverter	Has Inverter
Compressor type	Scroll
Noise level	23 db

Connectivity and controls
Control method	Remote
Power-source control	Corded Electric

Power and efficiency
Wattage	1970 watts
Air-flow efficiency	0.14 cubic_feet_per_minute_per_watt

Dimensions and installation
Form factor	Mini-Split
Installation type	Split System
Outdoor unit compatibility	Requires New Outdoor Unit
Dimensions listed	9"D x 44.5"W x 13"H
Weight listed	68 pounds

Other listed details
Color	White
Number of heating elements	1
Warranty type	Limited

What to know before buying

Listing details to confirm

Listing details are inconsistent: the title and feature text describe a 12000 BTU heat-pump mini split with cooling and heating, while the details list operating mode as Cooling. The listing also gives 750 square_feet as floor area, while customer feedback mentions a 1500-square-foot experience. Confirm the unit configuration, appropriate room size, and installation requirements before purchase. The stated warranty and coverage terms should also be confirmed for this exact listing.

What’s in the box

Included

Mini split

Who is it for?

A good fit for

Buyers looking for a ductless system listed for both cooling and heating who can arrange professional HVAC installation.
People who want remote operation, multiple modes, timer settings and a washable filter.

Less suited to

Anyone seeking a window-mounted or portable air conditioner that can be installed without HVAC work.
Buyers who need confirmed room-sizing or warranty details before selecting a system.

COSTWAY 12000 BTU Mini Split Air Conditioner and Heater · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.4 / 5 · 1,693 ratings

5 stars75%75%
4 stars9%9%
3 stars3%3%
2 stars3%3%
1 star10%10%

Customer feedback highlights fast cooling, quiet operation and perceived efficiency, and some customers describe the system as good value. The listing states 12000 BTU cooling and includes a 23 db noise claim, but these product specifications do not establish individual customer experiences. Feedback is mixed on reliability, installation instructions and remote guidance, including reports of a unit stopping after three days. These concerns matter for a permanently installed HVAC system, so buyers should account for professional installation and confirm support and warranty terms.

Positive themes

Customers describe fast cooling and appreciate quiet operation.
Some customers report satisfactory heating and efficiency.

Negative themes

Some customers report that a unit stopped working after three days.
Some customers describe the wiring diagram as unhelpful and the remote instructions as lacking.

Mixed feedback

Installation guidance receives mixed feedback, with some finding the manual detailed and others criticizing the wiring diagram.
Remote features are described as convenient, though some customers say the instructions are inadequate.
Reliability feedback is mixed.

Frequently asked questions

Does this system provide both cooling and heat?

The title and feature text describe cooling and heating, including a heat mode. The details section lists the operating mode as Cooling, so confirm the selected listing's configuration before buying.

Does the listing specify a room size?

It lists a floor area of 750 square_feet. Customer feedback separately mentions a unit covering 1500 square feet, so treat that larger figure as an individual reported experience, not a confirmed sizing specification.

Can I install it myself?

The manufacturer text says installation should be done only by a licensed HVAC installer.

What controls and modes are described?

The listing describes a remote, auto, cool, dry, heat and fan modes, four fan speeds, sleep and ECO modes, iFEEL, turbo and a 0.5-24 hour timer.