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Mitsubishi MZ-FE18NA

MR SLIM 18,000 BTU 20.2 SEER Energy Star Ductless Wall Mount Hyper Heat Pump System
Mitsubishi MR SLIM 18,000 BTU 20.2 SEER Energy Star Ductless Wall Mount Hyper Heat Pump SystemMitsubishi MR SLIM 18,000 BTU 20.2 SEER Energy Star Ductless Wall Mount Hyper Heat Pump System
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4 12 Product Reviews
Brand: Mitsubishi
SEER: 20.2
Room Size: 500 - 750 ft2
This system has been retired by the manufacturer and is no longer available. You may find similar products by viewing our selection of Single Zone Systems below.
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Have a question? Call Us 855-337-0001
Estimated Annual Cooling Cost
Depends on utility rates & use
Seasonal Energy Efficiency Ratio

System Includes:

  • Outdoor Condenser: MUZ-FE18NA
  • Indoor Wall Mounted Unit: MSZ-FE18NA
  • Wireless Remote Control
  • Required, but not included: 3/8" x 5/8" line set

It's the hot new thing in heating! Mitsubishi Electric has redefined the heat pump, enhancing their INVERTER-driven heat pumps with advanced Hyper-Heating INVERTER(H2i®) technology for year-round comfort in a single system. These innovative heat pumps can operate effectively to deliver toasty warm comfort at outdoor temperatures well below zero.

This Mr. Slim Hyper Heat inverter-driven wall-mounted ductless system is ideal for conditioning bedrooms, living rooms, dining rooms, garages, basements, kitchens, bonus rooms, out buildings, and more. These ultra-efficient Hyper Heat systems are also powerful and ideal for extreme climates, providing close to full-capacity heating at ambient temperatures as low as 5°F. MUZ-FE/MSZ-FE systems are Energy Star rated, With this system having a cooling capacity of 18,000 BTU, a heating capacity of 21,600 BTU, and a 20.2 SEER.

Control Options
The MUZ-FE/MSZ-FE systems also offer the optional wireless, RFI-RedLINK™ enabled, full-function wall mount controller, allowing homeowners to control their unit from a remote PC, smartphone or tablet (MHK1 sold separately). If you prefer a standard, fully wired and functioning wall mount control, this system also works with the PAR-31MAA (sold separately and requires MAC-333IF).

INVERTER Technology
The M-Series INVERTER-driven compressor and linear expansion valve (LEV) works with the system’s sophisticated electronic controls to detect temperature changes in a room or zone, automatically changing speeds to adjust for precise capacity and temperature control.

Air Filtration
The indoor units use a sophisticated multiple filtration system to ensure clean, healthy air throughout the rooms/zones they condition. The Hybrid Catechin washable pre-filter captures dust and eliminates odors, while the Blue Enzyme washable filter uses an enzyme catalyst to capture and eliminate allergens, germs, bacteria, and viruses.

Quiet Operation
Mr. Slim Indoor Units operate at very low sounds levels (19-34 decibels). According to a study performed by the National Institute for Occupational Safety and Health, Mr. Slim Indoor Units are quieter than a human whisper (30 decibels) at low speed.

Rare Earth Magnet Rotor
Mr. Slim MSZ-FE Series H2i units feature compressors with a rare earth magnet rotor, which increases the magnetic flux and reduces the compressor's energy consumption, while producing more heat.

Additional Features & Benefits

  • Auto fan speed feature plus four speed settings available (Low, Medium 1, Medium 2, High)
  • Wide discharge vane and Swing Mode feature provides up to 150° horizontal air flow coverage
  • Wireless handheld remote controller included
  • Sleek, flat panel design and front panel access makes filter cleaning an easy task
  • Compact, side discharge outdoor unit
  • Complete room/zone control for exceptional comfort
  • Quiet outdoor unit operation ranging from 48-55 dB(A)
  • Hot-start technology ensures warm air from startup
  • Auto restart feature works after a power outage
  • Please note: this 18K system does not include the i-see Sensor™ like the smaller 9K and 12K systems have.

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

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.

How much heat can this really generate?

We know a lot of people are interested in using ductless splits as their year-round system, and the Mitsubishi Hyper Heat series is among the best in providing heating capability even at very low temperatures. This system is capable of heating a 750 sq foot space at fully 100% capacity even at 5 degrees Fahrenheit. At negative 13 degrees F, this system can still provide heat at 73% capacity. This system performs extremely well in cold environments, with performance in heating mode of -13*F to 75*F and in cooling mode from 14*F to 115*F.

Which line set kit do I need?

This unit uses a 3/8" x 5/8" line set. These are sold separately, and you can choose from our 15 ft, 25 ft, and 50 ft lengths. The length needed depends on the needs of your project and how you will set up the system (distance from outdoor condenser to indoor air handler).

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.

Brand Mitsubishi
Model Family M-Series
Equipment Type Heat Pump
SEER 20.20
EER (Energy Efficiency Ratio) 14.2
Refrigerant R-410a
HSPF (Heating Seasonal Performance Factor) 10.3
Rated Cooling Capacity (BTU) 18,000
Rated Heating Capacity (BTU) 21,600
Nominal Capacity (BTU) 18,000
Voltage 208-230 VAC
Phase Single
Cycle/Hertz 60
Minimum Circuit Amps 17.1
Maximum Fuse Size 20
Color Gray
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 installa
Energy Star Rated Yes
Sound Pressure Rating ID - Cool - 34/41/49/53 dB(A) Heat - 32/41/49/52 dB(A) OD - Cool/Heat - 55/55 dB(A)
Minimum Cooling Capacity 8,200
Number of Zones/Rooms Single
4-Way Remote Air Flow Control Yes
Liquid/Gas Line Set Size 3/8" x 5/8"
COP (Coefficient of Performance) 4.11
Maximum Cooling Capacity 25,200
Maximum Heating Capacity 29,700
Inverter Technology Yes
Minimum Heating Capacity 7,500
Corrosion Protection No
Tonnage 1 1/2
Comfort Up Product Image
Mitsubishi 18,000 BTU 20.2 SEER Ductless Hyper Heat Pump Outdoor Condenser
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Mitsubishi 18,000 BTU Ductless Heat Pump I-SEE Wall Mount Indoor Air Handler
Mitsubishi 18,000 BTU 20.2 SEER Ductless Hyper Heat Pump Outdoor Condenser
Mitsubishi 18,000 BTU Ductless Heat Pump I-SEE Wall Mount Indoor Air Handler
Product Review
David Campbell
Dec 25, 2015
We are very happy with the purchase of the Mr Slim 9000 and have recommended ComfortUp to several friends Thanks again ...
Product Review
Nov 17, 2015
I like these units. Easy to install with a minimum of training and tools. After assembly I just turned on the breaker and it worked, no problems!
Product Review
Richard L Turske
Jun 6, 2016
Purchased this conditioner online. I had to install it myself because I didn't buy it from a dealer. The warrenty is probably no good because it wasn't install by a professional. Works well, dose a good job cooling my 20 x 24 work shop.
Product Review
Dennis Rossbach
Aug 28, 2016
I have a federal EPA certificate for refrigerants and the tools and recovery equipment I used in connection with corporate refrigeration systems. That said, this was a very easy system to install and is so quiet that I was initially afraid it was not functioning when I turned it on. ComfortUp used a trucking company that delivered the system palletized and in pristine condition. This split requires at least 2 persons to install properly unless you are the Hulk; and the proper vacuum equipment, gauges, refrigeration scale, makeup R410A, etc. are an absolute must - so you will do yourself a favor by having someone certified to service the unit initialize the system if you are not.
Product Review
Tom Yi
Oct 19, 2016
Customer service was excellent!!! They kept their promises. and product was perfect!!! I would definitely use them again in the future!
Product Review
William Lister
Oct 20, 2016
Absolutely perfect and the ONLY mini split I would purchase would be Mitsubishi.
Product Review
Scott Williams
Dec 4, 2016
Shipment arrived promptly. A mechanical contractor installed the unit; he reported no problems with the process. The unit works great for my space which is about 300 square feet.
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Ring in the New Year with 5% OFF Sitewide - Coupon: NEWYEAR5