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GREE GWH18TC-D3DNA1A-LE

18,000 BTU 21 SEER TERRA LE Wall Mount Ductless Mini Split Air Conditioner Heat Pump 208-230V
SKU : GWH18TC-D3DNA1A-LE
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About this Item

Terra Limited Edition Series (same as GWH18TC-D3DNA1A) - 21 SEER / 12.0 EER / 8.5 HSPF - System Includes: LSTERR18HP230V1AO, LSTERR18HP230V1AH
  • Energy Star Estimated Cooling Cost: $226
  • SEER: 21
  • Room Size: 500 - 750 ft2
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Warranty Included (5 Year) View Details
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About this Item

Terra Limited Edition Series (same as GWH18TC-D3DNA1A) - 21 SEER / 12.0 EER / 8.5 HSPF - System Includes: LSTERR18HP230V1AO, LSTERR18HP230V1AH
  • Energy Star Estimated Cooling Cost: $226
  • SEER: 21

Product Highlights

System Includes:

  • Outdoor: LSTERR18HP230V1AO
  • Indoor: LSTERR18HP230V1AH
  • Wireless Remote Control
  • Required, but not included: 1/4" x 5/8" line set


The LE SERIES Terra Models are available while supplies last. There is no difference between these systems and the original Terra Systems, other than packaging and the component model numbers. All specifications, form & function are identical to the original models. Take advantage of this limited time offer and enjoy your newfound Comfort year-round with an ultra-efficient GREE Terra Ductless Split System.


The GREE Terra Ultra LSTER18HP230V1A Ductless Mini-Split Heat Pump System is among the most efficient mini-splits with Seasonal Energy Efficiency Ratings of up to 27-SEER. This is a simple straightforward system containing an indoor cabinet, outdoor compressor, wireless remote and remote cradle. The GREE Terra does not require bulky duct work making installation simple, fast and cost effective.

Features & Benefits:

  • Highest Efficiency - G10 Inverter Technology
  • 4-Way Airflow Operation (Swing)
  • Waterfall Heating Airflow
  • 7 Fan Speeds
  • Gold Fin Condenser
  • Photocatalytic Filter
  • I-Feel Automatic Function
  • Low Ambient Cooling, 5°F
  • Low Voltage Start-Up
  • Intelligent Defrost
  • Intelligent Pre-Heating
  • Comfortable Sleep Mode
  • Auto Clean
  • Dry Anti-Mildew Design
  • LED Display
  • Automatic Operation
  • Self-Diagnosis
  • Memory Function
  • 24-Hour Timer
  • Control Lock
  • Fan Delay Function
  • Energy Saving Function
  • Slim, Compact and Stylish Design

How many BTUs do I need for my ductless split?

Please Note: Mini Split Systems must be installed by a licensed Contractor with an EPA Refrigerant Certification to qualify for warranty.

(BTU ratings are estimates only, based on 10ft ceilings, with great insulation and windows. Some factors may alter this calculation: lack of insulation, heavy sun, excessively hot regions, & tall ceilings)

9,000 BTU       350 sqft
12,000 BTU     500 sqft
18,000 BTU     750 sqft
24,000 BTU     1,000 sqft
30,000 BTU     1,250 sqft
36,000 BTU     1,500 sqft
42,000 BTU     1,750 sqft

Make sure you install a unit that is going to properly cool your square footage. An over-sized air conditioner is actually less effective — and wastes energy at the same time. Air conditioners remove both heat and humidity from the air. If the unit is too large, it will cool the room quickly, but only remove some of the humidity. This leaves the room with a damp, clammy feeling. A properly sized unit will remove humidity effectively as it cools.

Which Line Set Kit Do You Need?

This unit uses a 1/4" x 5/8" line set. These are sold separately, and you can choose from our 15 ft, 25 ft, and 50 ft lengths. Length is dependent on the needs of your project and how you will set up the system (distance from condenser to indoor air handlers).

Can I install this myself?

While installation of a ductless split is much easier than a central air system, it’s still much more advanced than installing a window unit or portable. Furthermore, the manufacturer warranty is only valid if a licensed professional does the installation. So while it is possible to do the installation yourself, we strongly recommend you hire an HVAC professional in your area.

Is this backed by a warranty?

Yes, it comes fully backed by a manufacturer's warranty, and ComfortUp is an authorized online seller of these systems. Our customer support team will provide assistance should you ever need to file a warranty claim with the manufacturer. Please be aware that only systems that are installed by a licensed HVAC contractor are backed by the warranty. Proof of licensed installation is required. The receipt/invoice from the contractor should be sufficient.

Manuals & Docs

Gree LSTERR18HP230V1AO - 18,000 BTU 21 SEER TERRA LE Ductless Mini Split Heat Pump Outdoor Unit 208-230V
Gree LSTERR18HP230V1AH - 18,000 BTU 21 SEER TERRA LE Ductless Mini Split Wall Mount Indoor Unit 208-230V
Brand GREE
Model Family Terra
Equipment Type Heat Pump
Tonnage 1 1/2
SEER 21.00
EER (Energy Efficiency Ratio) 12.0
Refrigerant R-410a
HSPF (Heating Seasonal Performance Factor) 9.8
Rated Cooling Capacity (BTU) 18,000
Rated Heating Capacity (BTU) 19,000
Nominal Capacity (BTU) 18,000
Voltage 208-230 VAC
Phase Single
Cycle/Hertz 60
Minimum Circuit Amps 15
Maximum Fuse Size 20
Number of Zones/Rooms 1
COP (Coefficient of Performance) 3.5
Inverter Technology Yes
Mounting Type Wall Mount
Warranty Offered 5/7 All parts are warranted for a period of five (5) years to the original registered end-user with proof of proper installation. The compressor is warranted for a period of seven (7) years to the original registered end-user with proof of proper installation.
Energy Star Rated Yes
Corrosion Protection Yes
Filter Type Washable Polymeric Air Filter, Cleanable Photocatalytic Organic Contaminant Filter
Minimum Cooling Capacity 4600
Maximum Heating Capacity 24900
Minimum Heating Capacity 3400
Maximum Cooling Capacity 22180
Liquid/Gas Line Set Size 1/4" X 5/8"
Sound Pressure Rating ID - 51/48/45/43/39/36/33 dB(A) OD - 56 dB(A)
4-Way Remote Air Flow Control Yes
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