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Comfort-Aire SMH18SC-1
18,000 BTU Cooling (1.5 Ton), 18,000 BTU Heating (1.5 Ton), 13 SEER Heating / Cooling (Heat Pump) Mini-Split System, 230 Volts, R-410A Refrigerant

Product has been discontinued.
Please call us for a suitable alternate product.

Mon - Fri 8:30am - 5:00pm Central

Comfort-Aire's "S" Series, rated at 13 SEER, offers economical zone control because only the room or area being used is conditioned.  Also, no energy is used to force air through a duct system.

Since the unit is independent of any other heating or cooling system, specific comfort requirements can be set for the space.  A wireless remote makes it easy to select both temperature and mode.

The indoor air handler features a sleek design that extends just 9" or less into the room, depending on the model.  For installation flexibility, the indoor section can be located up to 82 feet from the outdoor section.

Not only is the air handler visually unobtrusive, it's also so quiet you'll forget it's even there.  Fan speed and mode can be selected so the air flow provides the comfort needed without being disruptive.  All models feature three fan speeds.

Built with many quality components, the system includes a three minute delay at start-up to protect the compressor from short-cycling.

Standard Features

  • Whisper Quiet—High tech fan in the indoor unit delivers balanced air flow
  • Temperature Compensation—Indoor unit adjusts automatically as needed to eliminate stratification between ceiling and floor temperatures
  • Random Swing—Continually adjusts air direction for a gentle, breeze-like effect
  • Multiple Modes—Cooling, dehumidification only, air circulation (heating in heat pump models) plus: Sleep mode, 24-hour timer and turbo mode
  • Auto Operation—Automatically adjusts to maintain a constant temperature/humidity level
  • Air Filtration—An air filter helps trap dust, pollen and other particles in the air; this permanent filter is designed to be washed on a regular basis and re-installed
  • Auto Restart—Reverts to the last setting following a power failure
  • Low Ambient Operation—Crankcase heater allow operation at 5°F (cooling)

Complete your system by selecting a line set from the Accessories tab above.  Line sets come in 15, 35, and 50 foot lengths.

Total Cooling Capacity
18000 BTU 

Total Cooling Capacity
1.5 Ton(s) 

Maximum Heating Output BTU
16700 BTU 

13 SEER 

Energy Efficiency Ratio
9.8 EER 

Heating Seasonal Performance Factor
7.8 HSPF 


Moisture Removal
3.8 Pts/Hr 

Factory Precharge
16.5 Feet 

Maximum Fuse/Breaker
15 Amps 

Wiring Requirement for Indoor Unit
4 Conductor/ 14 Gauge  

Maximum Line Length
82 Feet 

Maximum Height Difference
32.8 Feet 

Line Set Connection Type

ENERGY STAR® Qualified


Liquid Line Connection Size
1/4 Inches 

Suction Line Connection Size
1/2 Inches 

Indoor Section Size, W x H x D
42 1/2 x 13 x 9 Inches 

Sound Rating, Indoor
42 / 45 / 48 Decibels 

Outdoor Section Size, W x H x D
33 1/4 x 27 3/8 x 13 3/16 Inches 

Indoor Section Weight
33 Lbs 

Outdoor Section Weight
116.9 Lbs 

208 / 230 Volts 

60 Hz 

Voltage Phase

Compressor Warranty
5 Years  

Parts Warranty
1 Years 
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(800) 865-5931
Monday to Friday
8:30am - 5:00pm Central
  Mailing Address
1901 N. Clybourn Avenue
Suite 200
Chicago, IL 60614
[email protected]
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(425) 928-2455
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