How to Pick the Perfect Mini Split Wall Mounted Indoor Unit
Wall-mounted units are the most commonly found, most affordable option for indo...
Local Pickup FAQ's
Hover to zoom
1 of 10
Mitsubishi - 18k BTU Cooling + Heating - M-Series H2i Wall Mounted Air Conditioning System - 21.0 SEER
Model:
MZ-FH18NA
+
Share This Product
Recommended Accessories
Expert Recommended Accessories
Selected by Ken, our Expert
Required Accessories
3
These accessories are required to properly setup/install this product.
Model: MSPLTKIT-141215
Length (ft)
$313.62
In-Stock
Model: UC2448-3
$77.00
In-Stock
$105.62
In-Stock
Optional Accessories
9
Model: MLS141212-15
Length (ft)
$160.00
In-Stock
Model: ASP-MW-UNI
$296.32
In-Stock
Model: 84099
$5.30
In-Stock
Model: PAC-USWHS002-WF-2
$199.00
In-Stock
Model: MAC-642BH-U1
$295.50
Only 2 In-Stock
Model: MAC-886SG-E
$408.83
Features
- Precision Temperature Control Technology
- The MUZ-FH18NA2 outdoor condenser includes inverter technology and an electronic linear expansion valve. By adjusting compressor speed and refrigerant flow, output can be matched to the zone for precise temperature control and improved efficiency.
- i-see Sensor 3D
- The MSZ-FH18NA2's i-see Sensor 3D monitors its zone for fluctuations in temperature. If it detects an underserved area, the MSZ-FH18NA2 will temporarily direct airflow to that zone. It also enters energy save mode if no human heat signatures are detected.
- H2i Technology
- Low or negative ambient temperatures don't bother the MUZ-FH18NA2. It is rated for 100% heating capacity at 5 degrees F and 73% at -13 degrees F.
- Advanced Filtration System
- The MSZ-FH18NA2 uses two advanced filters to clean and deodorize the circulated air. The deodorizing filter absorbs any offending smells, while the second is an enzyme-based anti-allergy filter that captures and destroys bacteria and particulates.
- Hot-Start
- Mitsubishi's hot start technology prevents cold drafts by delaying fan operation until the heat exchanger has warmed up.
- Powerful Mode
- The powerful setting on the MSZ-FH18NA2 makes it easy to get your zone to the perfect temperature quickly. When activated, the unit temporarily increases refrigerant flow and fan speed to provide quick comfort through rapid heating or cooling.
- Econo Cool Mode
- By slowly adjusting the cooling set point and swinging the horizontal vanes, the MSZ-FH18NA2 can improve the efficiency of cooling operations without compromising the comfort provided.
- Dehumidification
- When the indoor unit runs in dry mode, the coil's temperature stays just below the dew point of the return air, removing unwanted moisture. This improves comfort and reduces the chance of mold growth and other property damage in the conditioned space.
- Vane Control
- Optimal air flow can be achieved with the MSZ-FH18NA2 thanks to two vane control options, standard and wide. Auto mode selects the best vane position based on operating mode while swing mode cycles through each vane position.
- (1) Mitsubishi - 18k BTU - FH-Series H2i Outdoor Condenser - Single Zone Only (MUZ-FH18NA2)
- (1) Mitsubishi FH-Series 18k BTU Wall Mounted Unit - For Multi or Single-Zone (MSZ-FH18NA2)
- Line Set - This double insulated tubing transfers refrigerant efficiently between your outdoor condenser and indoor unit.
- Drain Tubing - Drain tubing facilitates the reliable and effective removal of condensate from your system. It connects your indoor unit to drain locations of your choosing.
- Disconnect Box & Electrical Whip Kit - The Disconnect Box & Whip Kit provides a safe and simple way to connect your outdoor condenser to your fuse box.
- Connecting Wire - This durable, insulated wire provides power to your indoor unit from your outdoor condenser.
- Base Pan Heater - The base pan heater prevents ice from building up on the outdoor unit. Excessive ice build will lead to performance issues and could damage your unit.
- Outdoor Condenser Plastic Pad or Wall Bracket - We recommend outdoor condensers should not be placed directly on the ground. An outdoor condenser pad or wall bracket will provide a stable way to mount your condenser free from obstructions and debris.
For over 50 years, Mitsubishi has remained at the forefront of the mini split industry thanks to their dedication to providing efficient, user-friendly comfort solutions. Part of Mitsubishi's hyper-heating product line, the MZ-FH18NA is a packaged single zone heat pump mini split system designed to bring high-efficiency zoned comfort to homes in frigid climates. The wall mounted indoor unit, MSZ-FH18NA2, boasts a functional design, and operates at volumes as low as 32 dB. Thanks to the included mounting plate, it is easy to install on nearly any wall. The outdoor condenser uses some of the most advanced technology available to modulate temperature without the energy-wasting overshoots and short-cycling associated with simpler systems. With an included wireless remote controller, this system is the perfect combination of convenience and comfort for any application in a sub-freezing environment.
Product Includes
Product Note
This product requires the following accessories for installation:
Specifications
Product Includes
- (1) Mitsubishi - 18k BTU - FH-Series H2i Outdoor Condenser - Single Zone Only (MUZ-FH18NA2)
- (1) Mitsubishi FH-Series 18k BTU Wall Mounted Unit - For Multi or Single-Zone (MSZ-FH18NA2)
MZ-FH18NA
General Information
Type
Wall Mounted
Product Line
M-Series H2i
Product Sub-line
Hyper-Heating
Operating Mode
Operating Mode
Some products are only capable of cooling, while others can either heat or cool a space. Some products heat via "heat pump" technology while others use electric heating elements. Learn More
Heating and Cooling
Number of Zones
Number of Zones
A zone is a room or area within a building that has its own temperature control.
1
Refrigerant Type
R-410A
Indoor Unit Size(s)
Indoor Unit Size(s)
Mini split systems can have one or more indoor units connected to a single outdoor unit. Indoor Unit Size(s) specifies what indoor unit sizes are used in a system. We have combined 6k and 7k indoor units to enhance searchability.
18
Outdoor Unit Size
18000 BTU
DOE Regional Compliance
DOE Regional Compliance
In 2015, the US Department of Energy broke the country into three regions - North, Southeast, and Southwest - and set legal standards for energy efficiency within each region. Learn More
Nationwide
Line Set Size
1/4" x 1/2"
Performance
Cooling BTU
18000
Cooling Capacity
18000 BTU
Heating Capacity
20300 BTU
SEER
SEER
SEER (Seasonal Energy Efficiency Ratio) is a measurement of cooling efficiency over a typical cooling season. It is useful for comparing energy efficiency of cooling systems. The higher the SEER, the more energy efficient the system. Learn More
21.0
HSPF
HSPF
HSPF (Heating Seasonal Performance Factor) is a measure of heating efficiency for heat pumps. It is useful for comparing energy efficiency of heat pumps. The higher the HSPF, the more efficient the system. Learn More
12.0
Cooling Power Input
1430 Watts
Heating Power Input
1720 Watts
Low Ambient Heating
Yes
Minimum Outdoor Temperature for Heating
Minimum Outdoor Temperature for Heating
This is the lowest rated outdoor temperature for heating operation. Because heat pumps rely on heat available in outdoor air, the amount of heat they are able to supply decreases with outdoor temperatures. Learn More
-13 F
Minimum Outdoor Temperature for Cooling
14 F
Electrical Data
Voltage
208/230 Volts
Phase
1
Frequency
60 Hz
Dimensions
Product Weight
161 Pounds
Shipping Weight
165 Pounds
Certifications
Energy Star Listed
Yes
ETL Listed
Yes
AHRI Certified
Yes
AHRI Reference Number
8111727
MUZ-FH18NA2
General Information
Type
Outdoor Condenser
Product Line
M-Series H2i
Operating Mode
Operating Mode
Some products are only capable of cooling, while others can either heat or cool a space. Some products heat via "heat pump" technology while others use electric heating elements. Learn More
Heating and Cooling
Maximum Number of Zones
1
Multi-Zone Compatible
No
Refrigerant Type
R-410A
Installation Location
Outdoor
Performance
Cooling BTU
18000
Maximum Sound Level
Maximum Sound Level
Sound levels are measured in decibels (dB). The lower the decibel rating, the less noise the product makes. As an example, a ticking watch is 20 dB while on the other end of the scale, a lawn mower is around 90 dB. Learn More
55 dB
Low Ambient Heating
Yes
Minimum Outdoor Temperature for Heating
Minimum Outdoor Temperature for Heating
This is the lowest rated outdoor temperature for heating operation. Because heat pumps rely on heat available in outdoor air, the amount of heat they are able to supply decreases with outdoor temperatures. Learn More
-13 F
Minimum Outdoor Temperature for Cooling
14 F
Electrical Data
Voltage
208/230 Volts
Phase
1
Frequency
60 Hz
Recommended Breaker Size
20 Amps
Dimensions
Maximum Line Length
100 Feet
Gas Connection Size
1/2 Inch
Liquid Connection Size
1/4 Inch
Product Height
34 5/8 Inches
Product Width
33 1/16 Inches
Product Depth
13 Inches
Product Weight
124 Pounds
Shipping Weight
134 Pounds
Certifications
ETL Listed
Yes
AHRI Certified
Yes
Warranty Information
Parts Warranty
Parts Warranty
A warranty is a safeguard from defects in manufacturing and can vary in length and terms. Some manufacturers require registration for extended warranty benefits, be sure to check out features and the warranty document. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More
5 Years
Compressor Warranty
7 Years
MSZ-FH18NA2
General Information
Type
Wall Mounted
Product Line
M-Series
Operating Mode
Operating Mode
Some products are only capable of cooling, while others can either heat or cool a space. Some products heat via "heat pump" technology while others use electric heating elements. Learn More
Heating and Cooling
Multi-Zone Compatible
Yes
Refrigerant Type
R-410A
Remote Control
Wireless
Indoor Unit Size(s)
Indoor Unit Size(s)
Mini split systems can have one or more indoor units connected to a single outdoor unit. Indoor Unit Size(s) specifies what indoor unit sizes are used in a system. We have combined 6k and 7k indoor units to enhance searchability.
18
Installation Location
Indoor
Performance
Cooling BTU
18000
Cooling Capacity
18000 BTU
Moisture Removal
2.7 Pints/Hour
Maximum Air Flow
514 CFM
Minimum Air Flow
194 CFM
Minimum Sound Level
25 dB
Maximum Sound Level
Maximum Sound Level
Sound levels are measured in decibels (dB). The lower the decibel rating, the less noise the product makes. As an example, a ticking watch is 20 dB while on the other end of the scale, a lawn mower is around 90 dB. Learn More
46 dB
Electrical Data
Phase
1
Frequency
60 Hz
Dimensions
Gas Connection Size
1/2 Inch
Liquid Connection Size
1/4 Inch
Product Height
12 13/16 Inches
Product Width
36 3/4 Inches
Product Depth
9 3/8 Inches
Product Weight
37 Pounds
Shipping Weight
45 Pounds
Certifications
ETL Listed
Yes
Warranty Information
Parts Warranty
Parts Warranty
A warranty is a safeguard from defects in manufacturing and can vary in length and terms. Some manufacturers require registration for extended warranty benefits, be sure to check out features and the warranty document. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More
5 Years
Reviews
(44)
Mitsubishi MZ-FH18NA Reviews & Ratings
Customer Photos and Videos
Customer Rating
4.95
(44 Ratings)
5
(43)
(43)4(0)
(0)3(1)
(1)2(0)
(0)1(0)
(0)
We previously owned 2 of these Units...
By Kriss F.
Scotrun, Pennsylvania
Purchased 01/02/2020 |
Review Posted 01/24/2020
Because of prior experience with this product (heat pump/ac combo), we purchased this brand again for another home we are renovating. It is winter so haven't used it yet, but we are confident all will be well as in the past. The units never failed us nor needed maintenance.
Kriss F. Recommends This
Was this review helpful?
Rating Breakdown
5/5
5/5
5/5
5/5
Best in class!
By Thomas W.
Blairsville, Georgia
Purchased 06/13/2019 |
Review Posted 07/11/2019
Mitsubishi. These folks have been around for years. There is just no better unit out there with this quality and reliability. Straight forward easy installation and setup. I ordered everything needed from “ecomfort.com and got it in about a week. My mini-split is up and running, whisper quiet.
Thomas W. Recommends This
Was this review helpful?
Rating Breakdown
5/5
5/5
5/5
5/5
An exceptional unit
By Lou F.
Foster, Rhode Island
Purchased 02/26/2019 |
Review Posted 05/11/2019
This is quite the unit. Provides almost unlimited comfort no matter what the temps are outside. It is a quality made item and most importantly, easy to service and work on. You may pay less money for an "off" brand but that would be a long run mistake. Don't get sucked in by "price" but by value. This unit provides tremendous value.
Lou F. Recommends This
Was this review helpful?
Rating Breakdown
5/5
5/5
5/5
5/5
I purchased this unit to cool my Attic, where my bed room is..
By Nua N.
Bronx, New York
Purchased 06/04/2018 |
Review Posted 09/08/2018
I had a small window air conditioner for my bedroom in the attic, I could not sleep with the noise. I attic of course is always hot.. Not when this unit it is on. My whole attic is comfortable.
Nua N. Recommends This
Was this review helpful?
Rating Breakdown
5/5
5/5
5/5
5/5
Pros:
Quiet, High Quality, Price
Very good
By Petro B
Ashtabula, Ohio
Purchased 11/21/2017 |
Review Posted 06/21/2018
I like it
Petro B Recommends This
Was this review helpful?
Rating Breakdown
5/5
5/5
5/5
5/5
Super Quite Unit
By Orland H.
North Carolina
Purchased 02/19/2018 |
Review Posted 05/09/2018
This Unit is super quiet with large amount of air it
moves,easy to install with acces. kit
moves,easy to install with acces. kit
Orland H. Recommends This
Was this review helpful?
Rating Breakdown
5/5
5/5
5/5
5/5
Replaced same sized window unit with this.
By John S.
Winona, Mississippi
Purchased 07/13/2017 |
Review Posted 10/28/2017
Quiet and keeps the room comfortable summer and winter.
John S. Recommends This
Was this review helpful?
Rating Breakdown
5/5
5/5
5/5
4/5
DIY Easy Perfect System
By Nickolai K.
Mount Pleasant, South Carolina
Purchased 07/14/2017 |
Review Posted 09/18/2017
I wanted a ductless heat and cooling A/C system for my 500 square foot workshop. I wanted the highest SEER possible at a reasonable price. I obtained 2 verbal quotes from a local HVAC company. I researched online various companies.
eComfort had the best price and the best online and phone support. It was eComfort phone support by Bob that really made the difference. The local HVAC sales person attempted to scare me by listing all the problems that a DIY project would entail. Bob set my mind at ease.
It cools nicely. It is better than the window A/C that I removed. I will no longer have to use an open flame LPG heater in the winter. It is too quiet. Even the compressor motor outside is super quiet.
eComfort had the best price and the best online and phone support. It was eComfort phone support by Bob that really made the difference. The local HVAC sales person attempted to scare me by listing all the problems that a DIY project would entail. Bob set my mind at ease.
It cools nicely. It is better than the window A/C that I removed. I will no longer have to use an open flame LPG heater in the winter. It is too quiet. Even the compressor motor outside is super quiet.
Nickolai K. Recommends This
Was this review helpful?
Rating Breakdown
5/5
5/5
5/5
5/5
Split Unit
By Namir Z.
W. Bloomfield, Michigan
Purchased 06/13/2017 |
Review Posted 08/17/2017
Despite I got more than what they recommend for my space, make sure you count double the size needed before ordering.
Instructions are not clear, and we spent a lot of time in installation because there was a leak. It took me a whole month and 2 weeks before I got it to run.... Barely enough.
I must say though, very very quiet.
Instructions are not clear, and we spent a lot of time in installation because there was a leak. It took me a whole month and 2 weeks before I got it to run.... Barely enough.
I must say though, very very quiet.
Namir Z. Recommends This
Was this review helpful?
Rating Breakdown
5/5
3/5
1/5
2/5
Perfect Answer To The Problem
By James F.
Fremont, Ohio
Purchased 06/21/2017 |
Review Posted 08/06/2017
I have added a room onto the back of my all-electric house so we needed to find an economical way to heat and cool the 14 x 22 ft room. The ductless HVAC system from Mitsubishi appears to have been a great answer. It is VERY quiet, has loads of different configurations available on the remote to program the unit to meet your individual needs and the H2i SEER 30.5 energy rating won't empty our wallet. I spoke to several HVAC technicians and sales people and they almost all recommended Mitsubishi for its quality and performance. The technician who installed it was impressed with how quiet the unit was saying that it was quieter than any other brand he had installed. Finally, the folks at eComfort helped me with the order to make sure that I ordered the additional pieces to make the entire installation complete including the HideALine, surge protector, etc.
James F. Recommends This
Was this review helpful?
Rating Breakdown
5/5
5/5
5/5
5/5
How-To Articles
What You Should Know About Mini-Split Wiring
Although they are easier to install than central air conditioning systems, mini...
How to Pick the Perfect Mitsubishi Mini-Split Condenser
If you're struggling to keep your home or office comfortable, you are not alone...
eComfort How-To Library
Articles, Tips and Buying Guides from Our Experts
Manuals
Ask A Question!
*Required Fields
+
Thank You For Submitting Your Question
Your submission has been sent successfully. Please give our experts up to two business days to respond.
Media Gallery
Mitsubishi - 18k BTU Cooling + Heating - M-Series H2i Wall Mounted Air Conditioning System - 21.0 SEER
Customer Review Images
