12,000 BTU 230V Through-the-Wall Air OLMO Conditioner w/ Remote, Smart Kit, Cooling Only

OLMO1-Yr Warranty

OW-A12AC230WF
Product specifications
Brand Olmo
Voltage 230V
WiFi Included
Zone Single Zone
Type Through-the-Wall
Freon R32
Compressor Rotary
$553.92 $470.83 Save 15%
Shipping Policy calculated at checkout.
(OPTIONAL) SLEEVE: NO
Size — match your room area
✓ Selected12,000 BTUup to 550 ft²$553.92$470.83-15%14,000 BTU$560.47$479.04-15%
Voltage — check your outlet
115Vstandard household outlet$459.84$390.86-15%✓ Selected230Vdedicated 230V circuit$553.92$470.83-15%
FREE Delivery

Please note that all delivery dates and estimated transit times are approximate and are not guaranteed. Delivery times may vary due to carrier delays, weather, holidays, peak shipping periods, or other circumstances beyond our control. How delivery dates are calculated

Pickup available at Medley Warehouse

Usually ready in 24 hours

Mon–Fri, 9:00 AM – 4:30 PM

Questions about this system?

Answers in seconds — tap a question below

  • Sized for about 300–500 sq ft. Rule of thumb: ~20 BTU per sq ft, and 12,000 BTU = 1 ton (this unit is 12,000 BTU). Ceiling height, insulation, sun and climate shift that — if you're between sizes, size up for hot/humid rooms. Not sure? We'll confirm the right BTU for your space.
  • 12,000 BTU = 1 ton — "tons" is just the older way of stating capacity. So 24,000 BTU = 2 tons, 36,000 = 3 tons, and so on. This system is 12,000 BTU. BTU tells you the capacity; SEER2 tells you the efficiency.
  • It uses R32 — an efficient, lower-GWP refrigerant that's now the industry standard on modern mini splits. The outdoor unit ships pre-charged for a standard line set, so most installs need no extra refrigerant; your licensed, EPA-608-certified installer verifies the charge and tops it off if your line set is longer.
  • Needs a dedicated 230V circuit, like a large household appliance, so it can deliver full capacity to larger rooms and multi-zone setups. Your licensed HVAC installer or electrician sets up the correct breaker and disconnect to meet local electrical code.
  • Yes — a big upgrade. It's far more efficient (inverter compressor) and much quieter, since the compressor sits outside instead of in your window or on the floor. It mounts permanently, doesn't block a window, and heats as well as cools year-round. Higher upfront cost, but lower bills and a longer lifespan.
  • Yes to all three. It's an inverter heat pump — cools in summer, heats in winter (even in the cold), far more efficiently than electric heaters. A Dry mode also pulls out humidity, so rooms feel cooler and less muggy.
  • Yes — WiFi is included, so you can set schedules, change the temperature, and even turn it on before you get home, all from the mobile app (and pair it with voice assistants). A standard remote is included too.
  • Ships as a complete set: OW-A12AC230WF. Everything arrives together — check the photos and specs for the full kit.
  • It should be installed by a licensed, EPA-608-certified HVAC professional — we don't recommend DIY installation. Handling refrigerant requires EPA Section 608 certification under U.S. law, and professional installation keeps the system safe, code-compliant, and your manufacturer warranty valid.
  • Yes — you get full inverter heat-pump technology and the same core features as premium brands without paying for the name, which is how we keep prices low. Shipping is free on U.S. orders over $300, and our team can help with sizing and support.
Best brands with the best deals

Why buy this mini split from MiniSplitsForLess

  • Free Shipping over $300Ships free to the lower 48 states — flat rate, no surprises at checkout.
  • USA-Based Expert SupportReal U.S. HVAC pros help with BTU sizing, refrigerant and install questions.
  • Genuine Units & Full WarrantyBrand-new, authorized-dealer equipment backed by the full manufacturer warranty.
  • Fast Nationwide ShippingIn stock and ready to ship from U.S. warehouses across all 48 states.

What Stands Out

All-in-One Through-Wall

A single self-contained 12000 BTU unit that heats and cools — no outdoor condenser required, perfect for hotels, additions and rentals.

Right-Sized Coverage

Engineered to heat & cool up to 300–500 sq ft — matched capacity so you never over- or under-size the space.

Year-Round Heat Pump

One system that cools in summer and heats in winter — reliable Olmo performance in every season.

Through The Wall

The OLMO TTW (Through-the-Wall) unit is a versatile and efficient solution for heating and cooling in residential and commercial spaces. With a sleek, space-saving design, the TTW unit is installed directly into the wall, making it ideal for apartments, offices, and hotels where floor space is limited. These units combine powerful performance with quiet operation, offering year-round comfort through reliable heating and cooling functions. Designed for ease of installation and minimal maintenance, OLMO TTW units feature energy-efficient components that help reduce utility costs while maintaining optimal indoor climates.

White window air conditioner with purple shield and checkmark logo.

Warranty and Tech Support Info

By selecting OLMO products for your home or business, you’ll receive expert technical support from heating and cooling specialist, including access to product manuals, troubleshooting guides and warranty information

Warranty terms: The manufacturer provides a Limited Warranty of 1 year for the compressor and 1 year for parts.

Warranty terms
Modern gray upholstered platform bed with white bedding and black accents.

Main Features

The OLMO TTW unit offers efficient heating and cooling in a compact, space-saving design. Ideal for apartments and offices, it features quiet operation, energy-efficient performance, and easy installation. With advanced filtration, user-friendly controls, and low maintenance, this unit ensures year-round comfort while reducing energy costs and enhancing indoor air quality.

All Accessories Included

With the purchase of the OLMO TTW system, your complete package will include 1-TTW Unit and 1-Remote.

Technical Specifications

Unit Specs

Unit Specs — OW-A12AC230WF
ModelOW-A12AC230WF
Unit Dimensions (WxDxH)24.21x20.28x14.53 in
Net/Gross Weight73.19/85.12 lb
Packing Dimensions (WxDxH)27.95x26.57x16.93 in
Power Supply208-230V, 1Ph, 60Hz
Noise Level68.3/66.7/63.9 dB
Airflow906/845/770 CFM
Dehumidification80.14 pt/h

System Specs

System Specs
Cooling Capacity 12,000 BTU
Zones 1
Voltage 230V
Refrigerant Type R32
Compressor Rotary
WiFi Included

Series Comparison Table

Technical specifications for every model in the series — this product is one of them.

Model OW-P08AC115WF OW-P08HS115WF OW-P12AC115WF OW-P12AC230WF OW-P14AC230WF OW-P12HS230WF OW-P14HS230WF
Power Supply 115V-1Ph-60 115V-1Ph-60 115V-1Ph-60 208/230V-1Ph-60 208/230V-1Ph-60 208/230V-1Ph-60 208/230V-1Ph-60
Cooling Capacity 8300 Btu/h 8000 Btu/h 12000 Btu/h 12000/11700 Btu/h 14000/13600 Btu/h 12000/11700 Btu/h 14000/13600 Btu/h
EER 3.11 W/W 3.13 W/W 3.08 W/W 3.08 W/W 2.78 W/W 2.98/2.95 W/W 2.86/2.84 W/W
CEER 10.6 Btu/h/W 9.6 Btu/h/W 10.5 Btu/h/W 10.5 Btu/h/W 9.5 Btu/h/W 9.5 Btu/h/W 9.5 Btu/h/W
Input 760 W 750 W 1140 W 1140/1110 W 1400/1360 W 1180/1160 W 1430/1400 W
Current 7.8 A 9.4 A 11.3 A 5.6/6.3 A 7.0/7.7 A 6.5/7.0 A 7.9/8.5 A
Standby Power 1.25 W 1.34 W 1.25 W 1.435 W 1.435 W 1.34 W -
Heating Rated Capacity - 4200 Btu/h - - - 10600/8600 Btu/h 10600/8600 Btu/h
Rated Input (Heater) - 1220 W - - - 3450/2821 W 3450/2821 W
Rated Current - 11 A - - - 15/13.5 A 15.0/14.0 A
Compressor Type ROTARY ROTARY ROTARY ROTARY ROTARY ROTARY ROTARY
Rated Current (RLA) 5.10 A 5.10 A 7.30 A 4.18/3.85±3% A 6.00/5.55±3% A 4.18/3.85±3% A 6.00/5.55±3% A
Locked Rotor Amp (LRA) 36 A 36 A 49 A 28.5±10% A 34.5±10% A 28.5±10% A 34.5±10% A
Refrigerant Type R32 R32 R32 R32 R32 R32 R32
Refrigerant Charge (oz) 10.93 11.99 17.28 16.58 17.99 17.28 19.40
Indoor Air Flow (Hi/Mi/Lo) 270.0/232.9/202.9 ft3/min 258.8/227.1/192.4 ft3/min 276.5/250.6/220.0 ft3/min 274.7/259.4/237.1 ft3/min 280.0/264.7/245.3 ft3/min 273.5/251.8/230.6 ft3/min 272.4/251.8/232.9 ft3/min
Indoor Noise Level (Hi/Mi/Lo) 55.6/52.4/49.5 dB(A) 58.7/55.4/52 dB(A) 59/56.8/55.3 dB(A) 60.2/59/57.5 dB(A) 60.5/59.5/58 dB(A) 61.8/60/58 dB(A) 62.3/61.2/59.8 dB(A)
Outdoor Air Flow (Hi/Med/Lo) 467.7/394.1/333.5 ft3/min 424.7/360.6/296.5 ft3/min 544.1/485.3/424.1 ft3/min 532.9/497.1/452.9 ft3/min 554.1/526.5/487.1 ft3/min 451.2/408.8/366.5 ft3/min 480.0/439.4/400.0 ft3/min
Outdoor Side Noise Level (Hi/Med/Lo) 63.6/59.4/55.9 dB(A) 63.5/59.7/55.9 dB(A) 68.7/65.3/62 dB(A) 68.3/66.7/63.9 dB(A) 69.9/68/65.9 dB(A) 65.4/63.2/61.1 dB(A) 69.8/67.2/64.8 dB(A)
Power Cord Length 7.02 ft 5.58 ft 7.02 ft 6.50 ft 6.50 ft 5.58 ft 5.58 ft
Control Type Remote Control/ Smart Connect Remote Control/ Smart Connect Remote Control/ Smart Connect Remote Control/ Smart Connect Remote Control/ Smart Connect Remote Control/ Smart Connect Remote Control/ Smart Connect
Operation Temp 63-90/ - °F 63-90/ - °F 63-90/ - °F 63-90/ - °F 63-90/ - °F 63-90/ - °F 63-90/ - °F
Outdoor (cooling/heating) 64-109 °F 64-109/23-75 °F 64-109 °F 64-109 °F 64-109 °F 64-109/23-75 °F 64-109/23-75 °F
Dimension (WxDxH) 24.21x20.28x14.53 in 24.21x20.28x14.53 in 24.21x20.28x14.53 in 24.21x20.28x14.53 in 24.21x20.28x14.53 in 24.21x20.28x14.53 in 24.21x20.28x14.53 in
Packing (WxDxH) 27.95x26.57x16.93 in 27.95x26.57x16.93 in 27.95x26.57x16.93 in 27.95x26.57x16.93 in 27.95x26.57x16.93 in 27.95x26.57x16.93 in 27.95x26.57x16.93 in
Net/Gross Weight 65.48/77.16 lbs 66.80/77.16 lbs 74.96/87.52 lbs 74.52/86.86 lbs 75.40/87.74 lbs 74.96/85.76 lbs 77.38/87.74 lbs

Shipping & Returns

  • Free shipping on every order over $300.
  • Delivery estimate for your ZIP is shown in the buy box above.
  • Returns accepted per our policy — unopened units in original packaging.

Warranty

1-year manufacturer warranty

  • Limited manufacturer warranty on the compressor and sealed system components.
  • Your order number is the proof of purchase — keep it for any claim.

Multiple Control Methods

Olmo’s TTW Unit can be managed with a user-friendly remote control or the optional phone application. Both options offer precise temperature adjustments and optimal climate control for ultimate convenience.

App Promo

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Frequently Asked Questions

What size mini split do I need for my room?

For spaces up to 550 sq ft, the Olmo 12,000 BTU Through-the-Wall Air Conditioner is ideal. Its cooling capacity ensures optimal comfort in medium-sized rooms.

Can I install a mini split myself?

While DIY installation is possible with the Olmo mini split, it requires some technical skills, especially for electrical connections and mounting. Ensure you have the right tools and consider purchasing an installation kit if you need assistance.

Does the mini split come pre-charged with refrigerant?

Yes, the Olmo mini split is pre-charged with R32 refrigerant for up to 25 ft of line set, simplifying the installation process. Just follow the installation guidelines to ensure optimal performance.

What voltage does the Olmo mini split require?

The Olmo 12,000 BTU unit operates at 230V, making it suitable for standard residential electrical systems. Ensure your power supply matches this requirement for safe operation.

What warranty does the Olmo air conditioner offer?

The Olmo mini split comes with a solid 5-year parts and compressor warranty, providing peace of mind for your investment. This coverage ensures you are protected against manufacturing defects.

What is the SEER rating of the Olmo mini split and why is it important?

The Olmo 12,000 BTU model boasts a SEER rating of 21+, indicating high energy efficiency. A higher SEER rating translates to lower energy costs and better environmental impact, making it a smart choice for cooling.