Mini split system kit showing indoor unit, outdoor condenser, line set, remote, and parts.

White outdoor mini split condenser, close-up of front fan grille and coils.

White wall-mounted mini split air handler over a bed

White wall-mounted mini split air handler with cool airflow

White wall-mounted ductless mini split indoor air handler, slim front panel.

White wall-mounted mini split air handler blowing cool air

Compact white air unit on the floor with blue airflow beside a living room couch.

Outdoor mini split heat pump condenser unit on a rooftop exterior wall.

White wall-mounted mini split air handler shown in multiple home rooms

White outdoor mini split condenser unit mounted on a concrete wall ledge.

White wall-mounted mini split air handler with Senville and LETO labels

White wall-mounted ductless mini split indoor air handler with slim rectangular face.

White wall-mounted mini split air handler front grille

White mini split remote control with LCD display and button keypad.

Mini split smart control screen on a phone with controller accessory box.

Insulated mini split line set with copper fittings, included accessories, and tubing.

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Senville LETO Series 12K BTU Mini Split with 21.3 SEER2, 230 Ductless Air Conditoner and Heat Pump Condenser with Wall Mount Air Handler (SENL-12CD/220)

SenvilleSKU: SENL-12CD/220-16NB

4 reviews

Price:

$869.99 $1,139.99SAVE 23%

Line Set Length: 16 Ft.

Voltage:

115V 115V
230V 230V

BTU:

9K 9K
12K 12K

Backorder

Estimated restock: 2-4 Weeks

Free Curbside Delivery — carrier calls to schedule

In-Home Protection Plan

No plan 2-Year $99.99 5-Year $249.99

The 30-second rundown

12,000 BTUHeating + Cooling

Professional RequiredInstallation

21.3 SEER2Efficiency

750 Sq. Ft.Coverage (estimate)

1-Zone

208/230VPower

Senville · LETO Series

SENL-12CD/220 208/230V Mini Split Air Conditioner and Heat Pump
12,000 BTU of versatile, year-round comfort.

Cooling, heating, dehumidification and fan operation for bedrooms, offices or living spaces. DC Inverter technology modulates output to maintain efficient, stable comfort.

Performance at a Glance

21.3 SEER2 — High-efficiency operation
9.1 HSPF2-4
10.8 EER2
Down to -15 °C (5 °F) — Cold-weather heating
As low as 22.5 dB — Low indoor setting
Recommended coverage: 450–750 sq. ft.
R454B — Refrigerant

DC Inverter Technology

The compressor continually adjusts output to the needs of the room, helping maintain a steadier temperature while reducing annual energy use by up to 48%.

Why Choose the SENL-12CD/220?

Four-season comfort — Cool, heat, dehumidify or circulate air with one wall-mounted ductless system.
Inverter efficiency — DC Inverter technology adjusts output as needed and reduces energy use by up to 48% annually.
Smart control — Use the included remote, voice control or the Alexa app with the included USB kit.

Everything You Need to Get Started

Outdoor unit — Inverter compressor condenser
Indoor unit — Wall-mounted air handler
Remote and Alexa kit — Wireless remote plus USB kit
Installation kit — 16, 25 or 50 ft. (per selection)
Control wiring — 14×4 AWG

Buy with Confidence

Manufacturer warranty: 5 years on the compressor · 5 years on parts. Coverage is subject to Senville’s warranty terms.

Professional installation required. The R454B system uses a 208/230 V, single-phase, 60 Hz power supply and must be installed and commissioned by a professional with the qualifications required in the installation jurisdiction. The system is pre-charged for up to 25 ft.; the 50 ft. installation kit requires additional refrigerant to be added on-site by the installer.

DIMENSIONS

Indoor Dimensions (WxDxH): 31.57 x 7.44 x 11.69 in
Indoor Weight: 19.4 lbs
Outdoor Dimensions (WxDxH): 30.12 x 11.93 x 21.85 in
Outdoor Weight: 59.08 lbs

GENERAL INFORMATION

Brand Name: Senville
Series: LETO
Model Number: SENL-12CD/220
Style: Ductless Mini Split AC With Heat Pump
Recommended Coverage: 450-750 sq. ft.
Thermostat Type: Remote Control
Alexa: Enabled
Connection Wiring: 14×4 AWG

COOLING PERFORMANCE

Cooling Capacity: 12,000 BTU
Cooling Range: 1700~13300 BTU
SEER2: 21.3
EER2: 10.8
Cooling Input Range: 140~1400 W
Cooling Current Range: 1.3~6.2 A

HEATING PERFORMANCE

Heating Capacity: 12,000 BTU
Heating Range: 2400~12200 BTU
HSPF2-4: 9.1
HSPF2-5: 7.0
COP (W/W): 3.18
Heating Input Range: 200~1230 W
Heating Current Range: 1.1~13.2 A
Minimum Outdoor Heating Temperature: 5°F / -15°C

TECHNICAL DETAILS

Power Supply: 208/230V, 1Ph, 60Hz
Voltage Range: 187-253
Minimum Circuit Ampacity: 13 A
Max. Fuse: 15 A
Indoor Air Flow (Turbo/H/M/L): 359.0 / 306.1 / 206.0 / 144.2 CFM
Indoor Noise Level (Turbo/H/M/L): 44.0 / 38.0 / 32.0 / 22.5 dB
Moisture Removal: 1.5 L/H
Outdoor Air Flow (Max): 1235.3 CFM
Outdoor Noise Level: 54.0 dB
Refrigerant Type: R454B
Refrigerant Pre-charge: 25 ft

WARRANTY & CERTIFICATIONS

Warranty: 5 Years Compressor / 5 Years Parts
Certifications: ETL Certified, AHRI Certified

36K BTU

30K BTU

24K BTU

18K BTU

12K BTU

9K BTU

9K BTU up to 450 sq ft · Bedroom, home office

12K BTU up to 750 sq ft · Large bedroom, den

18K BTU up to 1000 sq ft · Living room, master suite

24K BTU up to 1250 sq ft · Open living area

30K BTU up to 1500 sq ft · Large open area

36K BTU up to 1800 sq ft · Great room, small home

Between sizes? Round up. A slightly larger unit runs efficiently at partial load — an undersized one runs constantly.

Shipping

Free Shipping on all orders.
Large Appliances: Ship via Curbside Delivery — the carrier delivers to your property but not inside your home.
Small Items: Ship via standard ground delivery (FedEx or similar), such as small appliances, range hoods, sinks, faucets, and accessories.

Full shipping policy

Returns

30-Day Return Policy: Return requests must be submitted within 30 days of your delivery date. We cannot process returns after this period.
Return Requirements: Products must be unused, uninstalled, and in their original packaging (including box and pallet) to qualify.
Restocking Fee: A restocking fee may apply and varies by brand.

Full returns policy

Authorized Senville Dealer

Full manufacturer warranty on every Senville product we sell.

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Amazing difference in the space.

This is a great unit for a garage, bedroom or other small spaces. My garage--where I keep a classic Camaro--is 400 square feet. Both the heat and AC functions work beautifully, as does the "dry" feature to regulate humidity.

My only wish was that the thermostat could be set for one temperature (automatic) and that the unit would know if you have to have AC or heat to maintain that temp. As it is, you switch the unit on cool and set a temp OR switch to heat and set a temp. It cannot switch on its own.

Great product great price

I love my new mini splits from Senville. They were very affordable and I’m very happy with there performance!

I dont have it installed but this is the fourth one that i have bought over the years. For different properties. Heat pumps are awesome. Service is awesome.

Great product

I’m HVAC certified licensed so Product coming on time with secured shipping boxes And work great after I install it

Senville LETO Series 12K BTU Mini Split with 21.3 SEER2, 230 Ductless Air Conditoner and Heat Pump Condenser with Wall Mount Air Handler (SENL-12CD/220)