Wall Mounted Air Conditioners

Costway Blast 9k BTU Mini Split Air Conditioner with Heat Pump (17 SEER2, 208-230V)

TypeMini-Splits
BTU Capacity9000 BTU
Max. Coverage Area450 sq.ft.
Tonnage0.75 Ton
SEER217.0 SEER2

Free delivery

Delivery on Jun 25–30

Costway GreyVolt 12k BTU Mini Split Air Conditioner with Heat Pump (21 SEER2, 208-230V)

TypeMini-Splits
BTU Capacity12000 BTU
Max. Coverage Area750 sq.ft.
Tonnage1 Ton
SEER221.0 SEER2

Free delivery

Delivery on Jun 25–30

Costway Blast 9k BTU Mini Split Air Conditioner with Heat Pump (19 SEER2, 115V)

TypeMini-Splits
BTU Capacity9000 BTU
Max. Coverage Area450 sq.ft.
Tonnage0.75 Ton
SEER219.0 SEER2

Free delivery

Delivery on Jun 25–30

Costway Blast 12k BTU Mini Split Air Conditioner with Heat Pump (17 SEER2, 208-230V)

TypeMini-Splits
BTU Capacity12000 BTU
Max. Coverage Area750 sq.ft.
Tonnage1 Ton
SEER217.0 SEER2

Free delivery

Delivery on Jun 25–30

Costway Blast 12k BTU Mini Split Air Conditioner (20 SEER2, 115V)

TypeMini-Splits
BTU Capacity12000 BTU
Max. Coverage Area750 sq.ft.
Tonnage1 Ton
SEER220.0 SEER2

Free delivery

Delivery on Jun 25–30

Costway Airtural 9100 BTU Mini Split Air Conditioner with Heat Pump (20.5 SEER2, 115V)

TypeMini-Splits
BTU Capacity9100 BTU
Max. Coverage Area450 sq.ft.
Tonnage0.75 Ton
SEER220.5 SEER2

Free delivery

Delivery on Jun 25–30

ROVSUN 11.5k BTU Mini Split Air Conditioner with Heat Pump (17 SEER2, 115V)

TypeMini-Splits
BTU Capacity11500 BTU
Max. Coverage Area550 sq.ft.
Tonnage1 Ton
SEER217.0 SEER2

Free delivery

Delivery on Jun 25–30

ROVSUN 11.5k BTU Mini Split Air Conditioner with Heat Pump (17 SEER2, 230V)

TypeMini-Splits
BTU Capacity11500 BTU
Max. Coverage Area550 sq.ft.
Tonnage1 Ton
SEER217.0 SEER2

Free delivery

Delivery on Jun 25–30

Costway Airtural 12k BTU Mini Split Air Conditioner with Heat Pump (21 SEER2, 208-230V)

TypeMini-Splits
BTU Capacity12000 BTU
Max. Coverage Area750 sq.ft.
Tonnage1 Ton
SEER221.0 SEER2

Free delivery

Delivery on Jun 25–30

Customer Choice

Turbro Greenland 9k BTU Mini Split Air Conditioner with Heat Pump (24 SEER2, 115V)

TypeMini-Splits
BTU Capacity9000 BTU
Max. Coverage Area400 sq.ft.
Tonnage0.75 Ton
SEER224.0 SEER2

Free delivery

Delivery on Jun 25–30

Turbro Greenland 9k BTU Mini Split Air Conditioner with Heat Pump (24 SEER2, 230V)

TypeMini-Splits
BTU Capacity9000 BTU
Max. Coverage Area400 sq.ft.
Tonnage0.75 Ton
SEER224.0 SEER2

Free delivery

Delivery on Jun 25–30

ROVSUN 9k BTU Mini Split Air Conditioner with Heat Pump (19 SEER2, 115V, Black)

TypeMini-Splits
BTU Capacity9000 BTU
Max. Coverage Area400 sq.ft.
Tonnage0.75 Ton
SEER219.0 SEER2

Free delivery

Delivery on Jun 25–30

Costway Airtural 12k BTU Mini Split Air Conditioner with Heat Pump (22 SEER2, 115V)

TypeMini-Splits
BTU Capacity12000 BTU
Max. Coverage Area750 sq.ft.
Tonnage1 Ton
SEER222.0 SEER2

Free delivery

Delivery on Jun 25–30

BHI 12k BTU Mini Split Air Conditioner with Heat Pump (17 SEER2, 115V)

TypeMini-Splits
BTU Capacity12000 BTU
Max. Coverage Area600 sq.ft.
Tonnage1 Ton
SEER217.0 SEER2

Delivery on Jun 25–30

ROVSUN 9k BTU Mini Split Air Conditioner with Heat Pump (24 SEER2, 115V)

TypeMini-Splits
BTU Capacity9000 BTU
Max. Coverage Area400 sq.ft.
Tonnage0.75 Ton
SEER224.0 SEER2

Free delivery

Delivery on Jun 25–30

ROVSUN 12k BTU Mini Split Air Conditioner with Heat Pump (21 SEER2, 230V)

TypeMini-Splits
BTU Capacity12000 BTU
Max. Coverage Area550 sq.ft.
Tonnage1 Ton
SEER221.0 SEER2

Free delivery

Delivery on Jun 25–30

BHI 12k BTU Mini Split Air Conditioner with Heat Pump (17 SEER2, 115V, Wi-Fi Control)

TypeMini-Splits
BTU Capacity12000 BTU
Max. Coverage Area600 sq.ft.
Tonnage1 Ton
SEER217.0 SEER2

Delivery on Jun 25–30

Turbro Greenland 12k BTU Mini Split Air Conditioner with Heat Pump (23 SEER2, 115V)

TypeMini-Splits
BTU Capacity12000 BTU
Max. Coverage Area550 sq.ft.
Tonnage1 Ton
SEER223.0 SEER2

Free delivery

Delivery on Jun 25–30

Turbro Greenland 12k BTU Mini Split Air Conditioner with Heat Pump (24 SEER2, 230V)

TypeMini-Splits
BTU Capacity12000 BTU
Max. Coverage Area550 sq.ft.
Tonnage1 Ton
SEER224.0 SEER2

Free delivery

Delivery on Jun 25–30

BHI 12k BTU Mini Split Air Conditioner with Heat Pump (20.5 SEER2, 115V)

TypeMini-Splits
BTU Capacity12000 BTU
Max. Coverage Area600 sq.ft.
Tonnage1 Ton
SEER220.5 SEER2

Delivery on Jun 25–30

ROVSUN 12k BTU Mini Split Air Conditioner with Heat Pump (19 SEER2, 115V, Black)

TypeMini-Splits
BTU Capacity12000 BTU
Max. Coverage Area550 sq.ft.
Tonnage1 Ton
SEER219.0 SEER2

Free delivery

Delivery on Jun 25–30

ROVSUN 12k BTU Mini Split Air Conditioner with Heat Pump (24 SEER2, 230V)

TypeMini-Splits
BTU Capacity12000 BTU
Max. Coverage Area550 sq.ft.
Tonnage1 Ton
SEER224.0 SEER2

Free delivery

Delivery on Jun 25–30

ROVSUN 12k BTU Mini Split Air Conditioner with Heat Pump (23 SEER2, 115V)

TypeMini-Splits
BTU Capacity12000 BTU
Max. Coverage Area550 sq.ft.
Tonnage1 Ton
SEER223.0 SEER2

Free delivery

Delivery on Jun 25–30

ROVSUN 12k BTU Mini Split Air Conditioner with Heat Pump (21 SEER2, 115V)

TypeMini-Splits
BTU Capacity12000 BTU
Max. Coverage Area550 sq.ft.
Tonnage1 Ton
SEER221.0 SEER2

Free delivery

Delivery on Jun 25–30

BHI 12k BTU Mini Split Air Conditioner with Heat Pump (20.5 SEER2, 115V, Wi-Fi)

TypeMini-Splits
BTU Capacity12000 BTU
Max. Coverage Area600 sq.ft.
Tonnage1 Ton
SEER220.5 SEER2

Delivery on Jun 25–30

Costway Blast 18k BTU Mini Split Air Conditioner with Heat Pump (19 SEER2, 208-230V)

TypeMini-Splits
BTU Capacity18000 BTU
Max. Coverage Area1250 sq.ft.
Tonnage1.5 Ton
SEER219.0 SEER2

Free delivery

Delivery on Jun 25–30

Costway GreyVolt 18k BTU Mini Split Air Conditioner with Heat Pump (21 SEER2, 208-230V)

TypeMini-Splits
BTU Capacity18000 BTU
Max. Coverage Area1250 sq.ft.
Tonnage1.5 Ton
SEER221.0 SEER2

Free delivery

Delivery on Jun 25–30

Costway SEERXtreme 12k BTU Mini Split Air Conditioner with Heat Pump (24 SEER2, 208-230V)

TypeMini-Splits
BTU Capacity12000 BTU
Max. Coverage Area750 sq.ft.
Tonnage1 Ton
SEER224.0 SEER2

Free delivery

Delivery on Jun 25–30

ROVSUN 17k BTU Mini Split Air Conditioner with Heat Pump (17 SEER2, 230V)

TypeMini-Splits
BTU Capacity17000 BTU
Max. Coverage Area1000 sq.ft.
Tonnage1.4 Ton
SEER217.0 SEER2

Free delivery

Delivery on Jun 25–30

Costway Airtural 18k BTU Mini Split Air Conditioner with Heat Pump (21 SEER2, 208-230V)

TypeMini-Splits
BTU Capacity18000 BTU
Max. Coverage Area1250 sq.ft.
Tonnage1.5 Ton
SEER221.0 SEER2

Free delivery

Delivery on Jun 25–30

ROVSUN 18k BTU Mini Split Air Conditioner with Heat Pump (23 SEER2, 230V)

TypeMini-Splits
BTU Capacity18000 BTU
Max. Coverage Area1000 sq.ft.
Tonnage1.5 Ton
SEER223.0 SEER2

Free delivery

Delivery on Jun 25–30

Costway Blast 24k BTU Mini Split Air Conditioner with Heat Pump (18.5 SEER2, 208-230V)

TypeMini-Splits
BTU Capacity24000 BTU
Max. Coverage Area1500 sq.ft.
Tonnage2 Ton
SEER218.5 SEER2

Free delivery

Delivery on Jun 25–30

Costway SEERXtreme 18k BTU Mini Split Air Conditioner with Heat Pump (25 SEER2, 208-230V)

TypeMini-Splits
BTU Capacity18000 BTU
Max. Coverage Area1250 sq.ft.
Tonnage1.5 Ton
SEER225.0 SEER2

Free delivery

Delivery on Jun 25–30

BHI 24k BTU Mini Split Air Conditioner with Heat Pump (17 SEER2, 230V)

TypeMini-Splits
BTU Capacity24000 BTU
Max. Coverage Area1200 sq.ft.
Tonnage2 Ton
SEER217.0 SEER2

Delivery on Jun 25–30

Turbro Greenland 18k BTU Mini Split Air Conditioner with Heat Pump (23 SEER2, 230V)

TypeMini-Splits
BTU Capacity18000 BTU
Max. Coverage Area1000 sq.ft.
Tonnage1.5 Ton
SEER223.0 SEER2

Free delivery

Delivery on Jun 25–30

Costway Airtural 24k BTU Mini Split Air Conditioner with Heat Pump (21 SEER2, 208-230V)

TypeMini-Splits
BTU Capacity24000 BTU
Max. Coverage Area1500 sq.ft.
Tonnage2 Ton
SEER221.0 SEER2

Free delivery

Delivery on Jun 25–30

ROVSUN 24k BTU Mini Split Air Conditioner with Heat Pump (21 SEER2, 230V)

TypeMini-Splits
BTU Capacity24000 BTU
Max. Coverage Area1500 sq.ft.
Tonnage2 Ton
SEER221.0 SEER2

Free delivery

Delivery on Jun 25–30

Costway Airtural 24k BTU Mini Split Air Conditioner with Heat Pump (21 SEER2, 208-230V)

TypeMini-Splits
BTU Capacity24000 BTU
Max. Coverage Area1500 sq.ft.
Tonnage2 Ton
SEER221.0 SEER2

Free delivery

Delivery on Jun 25–30

Costway GreyVolt 24k BTU Mini Split Air Conditioner with Heat Pump (21 SEER2, 208-230V)

TypeMini-Splits
BTU Capacity24000 BTU
Max. Coverage Area1500 sq.ft.
Tonnage2 Ton
SEER221.0 SEER2

Free delivery

Delivery on Jun 25–30

Turbro Greenland 24k BTU Mini Split Air Conditioner with Heat Pump (23 SEER2, 230V)

TypeMini-Splits
BTU Capacity18000 BTU
Max. Coverage Area1500 sq.ft.
Tonnage2 Ton
SEER223.0 SEER2

Free delivery

Delivery on Jun 25–30

BHI 24k BTU Mini Split Air Conditioner with Heat Pump (17 SEER2, 230V, Wi-Fi)

TypeMini-Splits
BTU Capacity24000 BTU
Max. Coverage Area1200 sq.ft.
Tonnage2 Ton
SEER217.0 SEER2

Delivery on Jun 25–30

HotSpot Energy ACDC12C 12k BTU Mini Split Air Conditioner with Heat Pump (22 SEER, Solar Hybrid)

TypeSolar
BTU Capacity12000 BTU
Max. Coverage Area750 sq.ft.
Tonnage1 Ton

Delivery on Jun 23–26

BHI 36k BTU Mini Split Air Conditioner with Heat Pump (17 SEER2, 230V)

TypeMini-Splits
BTU Capacity36000 BTU
Max. Coverage Area1800 sq.ft.
Tonnage3 Ton
SEER217.0 SEER2

Delivery on Jun 25–30

HotSpot Energy ACDC18C 18k BTU Mini Split Air Conditioner with Heat Pump (22 SEER, Solar Hybrid)

TypeSolar
BTU Capacity18000 BTU
Max. Coverage Area1000 sq.ft.
Tonnage1.5 Ton

Delivery on Jun 23–26

BHI 36k BTU Mini Split Air Conditioner with Heat Pump (17 SEER2, 230V, Wi-Fi)

TypeMini-Splits
BTU Capacity36000 BTU
Max. Coverage Area1800 sq.ft.
Tonnage3 Ton
SEER217.0 SEER2

Delivery on Jun 25–30

ROVSUN 28k BTU 2-Zone Mini Split Air Conditioner with Heat Pump (9k+12k, 20 SEER2, 230V)

TypeMini-Splits
BTU Capacity28000 BTU
Max. Coverage Area950 sq.ft.
Tonnage2.3 Ton
SEER220.0 SEER2

Free delivery

Delivery on Jun 25–30

ROVSUN 28k BTU 2-Zone Mini Split Air Conditioner with Heat Pump (12k+12k, 20 SEER2, 230V)

TypeMini-Splits
BTU Capacity28000 BTU
Max. Coverage Area950 sq.ft.
Tonnage2.3 Ton
SEER220.0 SEER2

Free delivery

Delivery on Jun 25–30

MRCOOL DIY 9k BTU Mini Split Air Conditioner with Heat Pump (20.2 SEER2, 115V)

TypeMini-Splits
BTU Capacity9000 BTU
Max. Coverage Area400 sq.ft.
Tonnage0.75 Ton
SEER223.6 SEER2

Free delivery

Delivery on Jun 23–26

MRCOOL DIY 12k BTU Mini Split Air Conditioner with Heat Pump (19.5 SEER2, 115V)

TypeMini-Splits
BTU Capacity12000 BTU
Max. Coverage Area550 sq.ft.
Tonnage1 Ton
SEER223.5 SEER2

Free delivery

Delivery on Jun 23–26

ROVSUN 28k BTU 2-Zone Mini Split Air Conditioner with Heat Pump (9k+18k, 20 SEER2, 230V)

TypeMini-Splits
BTU Capacity28000 BTU
Max. Coverage Area950 sq.ft.
Tonnage2.3 Ton
SEER220.0 SEER2

Free delivery

Delivery on Jun 25–30

ROVSUN 28k BTU 2-Zone Mini Split Air Conditioner with Heat Pump (12k+18k, 20 SEER2, 230V)

TypeMini-Splits
BTU Capacity28000 BTU
Max. Coverage Area950 sq.ft.
Tonnage2.3 Ton
SEER220.0 SEER2

Free delivery

Delivery on Jun 25–30

ROVSUN 28k BTU 2-Zone Mini Split Air Conditioner with Heat Pump (18k+18k, 20 SEER2, 230V)

TypeMini-Splits
BTU Capacity28000 BTU
Max. Coverage Area950 sq.ft.
Tonnage2.3 Ton
SEER220.0 SEER2

Free delivery

Delivery on Jun 25–30

MRCOOL DIY 18k BTU Mini Split Air Conditioner with Heat Pump (20 SEER2, 208-230V)

TypeMini-Splits
BTU Capacity18000 BTU
Max. Coverage Area800 sq.ft.
Tonnage1.5 Ton
SEER222.5 SEER2

Free delivery

Delivery on Jun 23–26

MRCOOL DIY 24k BTU Mini Split Air Conditioner with Heat Pump (18.9 SEER2, 208-230V)

TypeMini-Splits
BTU Capacity24000 BTU
Max. Coverage Area1050 sq.ft.
Tonnage2 Ton
SEER222.7 SEER2

Free delivery

Delivery on Jun 23–26

MRCOOL DIY 36k BTU Mini Split Air Conditioner with Heat Pump (18 SEER2, 208-230V)

TypeMini-Splits
BTU Capacity36000 BTU
Max. Coverage Area1550 sq.ft.
Tonnage3 Ton
SEER218.0 SEER2

Free delivery

Delivery on Jun 23–26

Overview
Articles

Wall AC Units

Wall-mounted air conditioning units provide optimal cooling for properties without central HVAC or window restrictions. These permanently installed systems deliver 15-20% higher energy efficiency, quieter operation, and enhanced security compared to window units through dedicated wall penetrations with proper sealing.

Which Wall AC Unit Types Best Serve Different Property Configurations?

🏠
Through-the-Wall (TTW) Units

Work best for single rooms, ranging from 8,000-15,000 BTU for spaces up to 700 square feet. Installation requires a 16-inch sleeve and 230V electrical for larger models.

❄️
Ductless Mini-Split Systems

Excel in multi-room applications with outdoor compressor connecting to multiple indoor units. These achieve SEER ratings up to 30 with zone-based temperature control.

🔄
Heat Pump Wall Units

Provide year-round climate control, reversing refrigeration cycles for heating down to 25°F outdoor temperatures.

Unit Type	BTU Range	Coverage Area	Installation Complexity	Average Cost
TTW Standard	8,000-15,000	200-700 sq ft	Moderate	$400-$800
Mini-Split Single	9,000-24,000	300-1,000 sq ft	High	$1,200-$3,500
Heat Pump Wall	10,000-18,000	400-800 sq ft	High	$800-$2,000

How Do You Calculate the Correct BTU Capacity for Your Space?

Start with 20 BTU per square foot, then adjust for room characteristics:

Ceiling height above 8 feet (add 10% per additional foot)
South-facing windows (add 10%)
Additional occupants (add 600 BTU per person beyond two)
Kitchens (add 4,000 BTU)
Superior insulation (subtract 10%)

Expert Tip

Rooms with significant sun exposure may require 25-30% additional capacity. Oversizing by more than 30% creates humidity issues and inefficient cycling.

Example: A 400-square-foot room with two south-facing windows requires approximately 9,600 BTU (400 × 20 10% window adjustment 600 BTU occupancy).

What Installation Requirements Must You Consider?

Wall units require sleeve installations 14-26 inches wide depending on capacity. Installation height ranges from 6-8 feet above floor level for proper air circulation. Units above 12,000 BTU require 230V circuits with dedicated breakers.

Most municipalities require building permits for wall penetrations. Homeowners associations may restrict exterior unit placement. Rental properties need landlord approval before modifications.

How Do Energy Efficiency Ratings Impact Operating Costs?

SEER ratings measure seasonal cooling efficiency. Each SEER point improvement reduces cooling costs by 7%. Premium efficiency models (16-20 SEER) achieve payback within 5-7 years in high-use climates.

Efficiency Level	SEER Rating	Annual Cost (500 sq ft)	10-Year Savings vs Standard
Standard	10-12	$180-$220	Baseline
High Efficiency	13-15	$145-$170	$350-$500
Premium	16-20	$110-$140	$700-$1,200

Which Features Provide the Greatest Value?

📱
Smart Connectivity

Allows remote operation via smartphone apps and programmable thermostats reduce operational costs through automated scheduling.

⚡
Variable Speed Technology

Inverter-driven compressors maintain precise temperatures while reducing energy consumption and operating more quietly.

🌬️
Advanced Filtration

Captures allergens and dust, with washable filters reducing maintenance costs compared to disposable systems.

What Maintenance Practices Extend Unit Lifespan?

Monthly Tasks: Clean or replace air filters to maintain 5-15% efficiency. Remove exterior debris that restricts airflow.

Annual Service: Professional refrigerant checks prevent compressor damage. Coil cleaning recovers 10-20% efficiency loss and thermostat calibration prevents 10-25% energy waste from improper cycling.

How Do Wall AC Units Compare to Alternative Solutions?

Wall units balance performance, cost, and convenience for permanent cooling without central HVAC. They provide zone control advantages over central systems while offering superior efficiency and security compared to window or portable units.

Cooling Solution	Installation Cost	Operating Efficiency	Maintenance Requirements	Lifespan
Wall AC	$800-$2,500	High	Moderate	12-15 years
Window AC	$200-$800	Moderate	Low	8-12 years
Portable AC	$400-$1,000	Low	Moderate	6-10 years
Central AC	$3,000-$8,000	Highest	High	15-20 years

Expert Tip

Wall AC units represent the optimal middle-ground solution, providing permanent installation benefits without the infrastructure requirements of central systems. Their combination of energy efficiency, quiet operation, and zone control makes them ideal for apartments, condos, and homes requiring targeted cooling solutions.