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Mitsubishi - 12k BTU Cooling + Heating - HM-Series Wall Mounted Air Conditioning System - 18.0 SEER
Model:
MZ-HM12NA
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Recommended Accessories
Expert Recommended Accessories
Selected by Ken, our Expert
Required Accessories
3
These accessories are required to properly setup/install this product.
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Frequency
Frequency
Select how often you will receive your air filters, we offer many options to meet your air quality standards.
Quantity
Quantity
This will be how many filters you receive per delivery.
Quantity
$43.20
In-Stock
Features
- Kumo Cloud Compatible
- Control every zone in your home from the palm of your hand. The Kumo Cloud App allows easy access and control with any smartphone or internet browser.
- Econo Cool Mode
- By slowly adjusting the cooling set point and swinging the horizontal vanes, the MZ-HM12NA can improve the efficiency of cooling operations without compromising the comfort provided.
- Dehumidification
- When the indoor unit is run 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.
- Multiple Vane Control Options
- Auto mode selects the best vane position based on operating mode, and the swing modes cycle through all positions for maximum coverage. When wide mode is activated, fan speed increases beyond the current setting.
- Precision Temperature Control Technology
- The outdoor condenser is equipped with inverter technology and an electronic linear expansion valve. These components improve temperature accuracy and system efficiency through precise adjustments of both compressor speed and refrigerant flow.
- (1) Mitsubishi - 12k BTU - HM-Series Outdoor Condenser - Single Zone Only (MUZ-HM12NA-U1)
- (1) Mitsubishi - 12k BTU - HM-Series Wall Mounted Unit - Single Zone Only (MSZ-HM12NA-U1)
- Line Set - This double insulated tubing transfers refrigerant efficiently between your outdoor condenser and indoor units.
- Drain Tubing - Drain tubing facilitates the reliable and effective removal of condensate from your system. It connects your indoor units to drain locations of your choosing. We recommend locally purchased PVC hard pipe for the condensate drain on cassette and concealed duct units.
- 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 units from your outdoor condenser.
- 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. Mitsubishi is committed to achieving total customer satisfaction and year after year they do just that. The MZ-HM12NA is backed by a 5 year parts and 7 year compressor warranty to show you they stand by their product. With an included wireless remote controller, this single zone system is the perfect combination of convenience and comfort for any heating or cooling application.
Product Includes
Product Note
This product requires the following accessories for installation:
Specifications
Product Includes
- (1) Mitsubishi - 12k BTU - HM-Series Outdoor Condenser - Single Zone Only (MUZ-HM12NA-U1)
- (1) Mitsubishi - 12k BTU - HM-Series Wall Mounted Unit - Single Zone Only (MSZ-HM12NA-U1)
MZ-HM12NA
Overview
Product Category
Mini Split Heat Pump System
General Information
Type
Wall Mounted
Product Line
M-Series
Product Category
Mini Split Heat Pump System
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.
12
Outdoor Unit Size
12000 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 3/8"
Performance
Cooling BTU
12000
Cooling Capacity
12000 BTU
Heating Capacity
12000 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
18.0
EER
EER
EER (Energy Efficiency Ratio) is a measurement of cooling efficiency under fixed conditions. It is useful for comparing units that will operate consistently under one set of conditions (e.g. server room). The higher the EER, the more efficient the system. Learn More
9.9
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
10.0
Cooling Power Input
1210 Watts
Heating Power Input
990 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
-4 F
Minimum Outdoor Temperature for Cooling
14 F
Electrical Data
Voltage
208/230 Volts
Phase
1
Frequency
60 Hz
Dimensions
Product Weight
95 Pounds
Shipping Weight
99 Pounds
Certifications
ETL Listed
Yes
AHRI Certified
Yes
AHRI Reference Number
10095843
MUZ-HM12NA-U1
General Information
Type
Outdoor Condenser
Product Line
M-Series
Product Category
Mini Split System Components
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
12000
Cooling Capacity
12000 BTU
Heating BTU
14500
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
51 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
-4 F
Minimum Outdoor Temperature for Cooling
14 F
Electrical Data
Voltage
208/230 Volts
Phase
1
Frequency
60 Hz
Minimum Circuit Ampacity
9 Amps
Recommended Breaker Size
15 Amps
Dimensions
Maximum Line Length
65 Feet
Gas Connection Size
3/8 Inch
Liquid Connection Size
1/4 Inch
Product Height
21 5/8 Inches
Product Width
34 1/4 Inches
Product Depth
13 9/16 Inches
Product Weight
73 Pounds
Shipping Weight
79 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
Compressor Warranty
7 Years
MSZ-HM12NA-U1
General Information
Type
Wall Mounted
Product Line
M-Series
Product Category
Mini Split System Components
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
No
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.
12
Installation Location
Indoor
Performance
Cooling BTU
12000
Cooling Capacity
12000 BTU
Heating BTU
14500
Moisture Removal
2.5 Pints/Hour
Maximum Air Flow
399 CFM
Minimum Air Flow
170 CFM
Minimum Sound Level
22 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
45 dB
Electrical Data
Voltage
208/230 Volts
Phase
1
Frequency
60 Hz
Dimensions
Gas Connection Size
3/8 Inch
Liquid Connection Size
1/4 Inch
Product Height
11 5/8 Inches
Product Width
31 7/16 Inches
Product Depth
9 1/8 Inches
Product Weight
22 Pounds
Shipping Weight
26 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
(8)
Mitsubishi MZ-HM12NA Reviews & Ratings
Customer Photos and Videos
Easy to install and so very quiet
By Peter L.
Tempe, Arizona
Purchased 02/24/2020 |
Review Posted 03/20/2020
I purchased this unit to to replace another 2 ton mini-split that I use in the garage. The service tech I called to look at my old mini-split recommended that I buy a Mitsubishi as they are very reliable. It was very easy to install since all the electrical and copper lines were already in place.
One nice feature is that the unit also does heat, which for being in Phoenix Arizona it does get down to the 30's sometimes and it is nice to be able to warm up the garage to work on my projects.
The service tech was amazed at how quiet the compressor and air handler is in this unit when running even at full fan. He indicated that he will be recommending this to other clients, and even said he wanted to buy one for his house.
I explained that when ordering through eComfort it was very easy, and even when I called their sales people were very knowledgeable and very helpful.
I would recommend this unit to anyone and call eComfort if you have any questions.
Peter
One nice feature is that the unit also does heat, which for being in Phoenix Arizona it does get down to the 30's sometimes and it is nice to be able to warm up the garage to work on my projects.
The service tech was amazed at how quiet the compressor and air handler is in this unit when running even at full fan. He indicated that he will be recommending this to other clients, and even said he wanted to buy one for his house.
I explained that when ordering through eComfort it was very easy, and even when I called their sales people were very knowledgeable and very helpful.
I would recommend this unit to anyone and call eComfort if you have any questions.
Peter
Peter L. Recommends This
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Rating Breakdown
5/5
5/5
5/5
5/5
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
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Rating Breakdown
5/5
5/5
5/5
5/5
Item ordered meets all our expectations!
By Dave U.
Salina, Kansas
Purchased 10/11/2019 |
Review Posted 12/31/2019
The Mitsubishi 24k BTU mini split unit works very well in our new workshop.
Dave U. Recommends This
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Rating Breakdown
5/5
5/5
5/5
5/5
Super Happy with this unit!
By Robert L.
Van Nuys, California
Purchased 10/21/2019 |
Review Posted 12/23/2019
I am soo happy with this unit! It is so quiet and efficient. I bought this 18k AND the 12k for my bedroom. Love it!!!
Robert L. Recommends This
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Rating Breakdown
5/5
5/5
5/5
5/5
Straightforward Installation, Quiet Operation, and a Great Value
By Glenn M.
Beverly, Massachusetts
Purchased 11/29/2019 |
Review Posted 12/21/2019
I purchased this condenser with the matching inside wall-mounted unit (MUZ-HM09NA) to replace a failed Fujitsu mini-split that was heating and cooling a 14x18 office area.
Installation of the outside condenser was straightforward. Because of New England snow I used a wall bracket to get it a couple feet off the ground. While I was initially worried about vibrations that might get transmitted through the wall structure, the condenser is very quiet and internal components are well balanced. I can't hear it run from inside and even outside you need to be within 10 feet to know it's operating.
Hookup of the condenser was simple as this was a replacement and power was already in place. The condenser is pre-charged so that with up to a 25' line, no additional refrigerant is needed. Just evacuate the lines and test hold the vacuum for an hour or so and you're good to go.
The inside unit was more involved as I had to slightly move the through-wall hole from the old unit and also enlarge it to 3". You do have to pull the inside cover off to route wiring to the connectors but once you figure out how the cover attaches, it's pretty straightforward.
Operation is nearly silent inside and one of the reasons I purchased a Mitsubishi. The Fujitsu I had quickly developed a noisy air circulator motor when the bearing failed. I replaced it once and it was less than a year before the noise started again. A friend had an older Mitsubishi and it was still silent in normal operation - just what I wanted.
The inside remote operations are basic - heating/cooling/dry and a timer to turn the unit on/off.
So all-in-all very pleased and I hope to enjoy this unit for many years.
Installation of the outside condenser was straightforward. Because of New England snow I used a wall bracket to get it a couple feet off the ground. While I was initially worried about vibrations that might get transmitted through the wall structure, the condenser is very quiet and internal components are well balanced. I can't hear it run from inside and even outside you need to be within 10 feet to know it's operating.
Hookup of the condenser was simple as this was a replacement and power was already in place. The condenser is pre-charged so that with up to a 25' line, no additional refrigerant is needed. Just evacuate the lines and test hold the vacuum for an hour or so and you're good to go.
The inside unit was more involved as I had to slightly move the through-wall hole from the old unit and also enlarge it to 3". You do have to pull the inside cover off to route wiring to the connectors but once you figure out how the cover attaches, it's pretty straightforward.
Operation is nearly silent inside and one of the reasons I purchased a Mitsubishi. The Fujitsu I had quickly developed a noisy air circulator motor when the bearing failed. I replaced it once and it was less than a year before the noise started again. A friend had an older Mitsubishi and it was still silent in normal operation - just what I wanted.
The inside remote operations are basic - heating/cooling/dry and a timer to turn the unit on/off.
So all-in-all very pleased and I hope to enjoy this unit for many years.
Glenn M. Recommends This
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Rating Breakdown
4/5
5/5
5/5
5/5
Pros:
Durable, Quiet, Reliable, High Quality
Cons:
Cryptic instructions for a 1st time installer
Great!
By Richard R
Wakefield, Massachusetts
Purchased 08/15/2019 |
Review Posted 10/13/2019
Great company with quality equipment and assistance
Richard R Recommends This
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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
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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
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What You Should Know About Mini-Split Wiring
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Mitsubishi - 12k BTU Cooling + Heating - HM-Series Wall Mounted Air Conditioning System - 18.0 SEER
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