SplitAtlas

Midea / Midea Easy Pro

Midea Easy Pro 18k R-454B 208/230V Mini-Split

Certified capacity
18,000 BTU/h[3]
SEER2
23.5 SEER2[3]
Heating floor
-13 F[1]
Voltage
230 V[2]
Install path
Professional install

The 18k Easy Pro brings 1.5 tons of capacity to the cold-climate lineup at 23.5 SEER2 and 10.8 HSPF2. Rated heating is 18,000 BTU at 47F, holding 15,000 BTU at 17F and 12,800 BTU at 5F on R-454B - a curve that keeps a large room comfortable when it counts. As with much of the Easy Pro range, the 12.7 EER2 is the least flattering number here.

1 zoneProfessional installCurrent

Refrigerant generation

R-454B - current-generation refrigerant

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Error Codes
Midea Easy Pro 18,000 BTU R-454B 208/230V (MSEHU-H18B-2A / MO1ES-H18B-2A) mini-split heat pump indoor wall unit

Image: Famous Supply

Data completeness: 100%
Last sourced
Jul 27, 2026

SplitAtlas score

9.0 / 10

Methodology
Cooling efficiencyTop quartile

(23.5 SEER2) among 18k systems

Heating efficiencyTop quartile

(10.8 HSPF2) among 18k systems

Cold-weather performanceBelow average

(5F certified capacity: 71.1% of the 47F rating; -13 F heating floor) among 18k systems

WarrantyTop 10%

(12 yr parts / 12 yr compressor) across the catalogue

Feature setTop 10%

(8 verified features) across the catalogue

Documentation & partsBelow average

(6 manuals; spec sheet) across the catalogue

Not evaluated

  • Installation accessibility — not applicable (professional install)N/A

    professional install - DIY-accessibility not applicable

  • Price-to-value — not evaluatedN/A

    This is a professionally installed, quote-only system, so we can't score its price. Get an installed quote to compare real cost.

    Get a quote

Key ratings

Rated cooling

18,000BTU/h[3]

Rated heating

18,000BTU/h[3]

Best-fit use cases

Sized for an open living area, finished basement, or great room in a colder region that needs both strong summer cooling and sustained winter heat.

Buyer review snapshot

Best for / skip if

Best for

  • High-efficiency shortlists; SEER2 is 23.5.

Install difficulty

Professional install
  • Electrical: 230V.
  • Line set: connection type not sourced; precharged 25 ft; max 98 ft.

Alternatives

Availability and price context

This system needs a professional install, so its real price is an installed quote that depends on your home. We don't link to a listing for this exact model; get installation quotes to price it.

Source date

Model data sourced
Jul 27, 2026
Page reviewed
Jul 22, 2026
Source-backed records
6
Newest source retrieved
Sep 14, 2026

Warranty tiers

Base
5 yr parts / 7 yr compressor - base coverage
Registered
12 yr parts / 12 yr compressor - online registration at mideacomfort.us within 60 days of installation

The score uses Registered. Additional published terms are shown for reference and not counted in the score.

Review methodology

Model context

Structured ratings
Certification: ENERGY STAR certified and AHRI cold-climate designated. Refrigerant: current low-GWP R-454B. Minimum heating ambient: -13 F.

Strengths

  • Keeps 12,800 BTU at 5F, so it heats a large space rather than surrendering to the cold.
  • Low-GWP R-454B and Midea-scale hardware behind the badge.

Weaknesses

  • 12.7 EER2 signals ordinary efficiency at peak cooling demand.
  • Larger capacity means a bigger install job and a firm 230V requirement.

Climate suitability

Minimum heating ambient
-13 F[1]
Certified heating at 5F
12,800 BTU/h[3]
Maximum heating at 5F (manufacturer)
12,800 BTU/h[1]
Rated heating at 17F
15,000 BTU/h[3]
Rated heating at 47F
18,000 BTU/h[3]

Specifications

Show
Manufacturer
Midea
Brand
Midea
Product line
Midea Easy Pro
Model number
MSEHU-H18B-2A indoor / MO1ES-H18B-2A outdoor
Indoor unit model
MSEHU-H18B-2A
Outdoor unit model
MO1ES-H18B-2A
Number of zones
1
Max indoor units
not published
Rated cooling capacity
18,000 BTU/h[3]
Rated heating capacity
18,000 BTU/h[3]
Voltage
230 V[2]
MCA
Not published for this model
Maximum fuse or breaker size
Not published for this model
Breaker needed
not published
SEER2
23.5 SEER2[3]
EER2
12.7 EER2[3]
HSPF2 (Region 4)
10.8 HSPF2[3]
HSPF2 (Region 5)
not published
COP
not published
COP at 47F
3.5 COP[1]
COP at 5F
2.1 COP[3]
Minimum outdoor heating temperature
-13 F[1]
Minimum outdoor cooling temperature
-13 F[1]
Maximum outdoor temperature
122 F[1]
Indoor noise range
Not published for this model
Outdoor noise rating
58 dBA[1]
Indoor weight
Not published for this model
Outdoor weight
Not published for this model
Refrigerant
R-454B[3]
Refrigerant charge
48 oz[1]
Manufacturer coverage
not published
Line-set size
Not published for this model liquid / Not published for this model suction
Included line-set length
Professional installations use separately selected line sets
Maximum line-set length
98 ft[1]
Max line set per indoor
not published
Maximum elevation difference
Not published for this model
Max height between indoor units
not published
Wi-Fi support
supported[1]
Energy Star status
ENERGY STAR certified[4]
AHRI certification number
215471377[3]
Warranty
Base: 5 yr parts / 7 yr compressor (base coverage); Registered: 12 yr parts / 12 yr compressor (online registration at mideacomfort.us within 60 days of installation). Score uses Registered.. 12-year extended warranty listed for Midea single-zone systems; terms apply
Install path
Professional install
Retail price
Installed quote only
Available retailers
not published
Manual links
ENERGY STAR exact check 215471377, Easy Pro installation documentation listing, Easy Pro high-wall indoor product page, Midea Single-Zone Advance Heat Pump, AHRI Appendix M1 public detail 215471377
Specification sheet
AHRI Appendix M1 public detail 215471377
Last sourced date
Jul 27, 2026

Electrical requirements

Show
Voltage
230 V[2]
Voltage range
208/230V[1]
Phase
1[1]
Frequency
60 Hz[1]
MCA
Not published for this model
Breaker needed
not published
Maximum breaker size
Not published for this model
Maximum fuse size
Not published for this model
Maximum cooling current
not published
Maximum heating current
not published
Manufacturer wire notes
14 AWG, 4-conductor connection wiring[1]

Installation considerations

Show
Liquid line
Not published for this model
Suction line
Not published for this model
Line connection type
not published
Precharged length
25 ft[1]
Included line-set length
Professional installations use separately selected line sets
Maximum line-set length
98 ft[1]
Max line set per indoor
not published
Max height between indoor units
not published
Indoor dimensions
Not published for this model
Outdoor dimensions
Not published for this model
Indoor weight
Not published for this model
Outdoor weight
Not published for this model
Drain size
not published

Related systems and guides

Frequently asked questions

Can I install the Midea Easy Pro 18,000 BTU R-454B 208/230V (MSEHU-H18B-2A / MO1ES-H18B-2A) myself, or do I need a pro?
Midea Easy Pro 18,000 BTU R-454B 208/230V (MSEHU-H18B-2A / MO1ES-H18B-2A) is built for professional installation: the line set must be flared, evacuated, and charged, which requires EPA-certified refrigerant handling. Installing it outside the manufacturer's requirements can void the warranty, so budget for a qualified HVAC installer.
Will the Midea Easy Pro 18,000 BTU R-454B 208/230V (MSEHU-H18B-2A / MO1ES-H18B-2A) keep heating in a cold winter?
The AHRI/ENERGY STAR certification lists 12,800 BTU/h of heating capacity at 5F. Rated heating operation extends down to -13 F. Certified heating efficiency is 10.8 HSPF2. Match those numbers against your climate's design temperature - in cold regions, output at 5F matters far more than the nameplate capacity measured at 47F.
What electrical circuit does the Midea Easy Pro 18,000 BTU R-454B 208/230V (MSEHU-H18B-2A / MO1ES-H18B-2A) need?
Published electrical requirements: 230 V voltage. Confirm the final circuit against the unit nameplate and local code with a licensed electrician.
How far can the outdoor unit be from the indoor head?
The published maximum line-set length is 98 ft. The outdoor unit's factory charge covers up to 25 ft of line; longer runs need added refrigerant. Measure the planned routing before ordering.
What warranty does the Midea Easy Pro 18,000 BTU R-454B 208/230V (MSEHU-H18B-2A / MO1ES-H18B-2A) carry?
The manufacturer publishes these warranty tiers: Base: 5 yr parts / 7 yr compressor (base coverage); Registered: 12 yr parts / 12 yr compressor (online registration at mideacomfort.us within 60 days of installation). Score uses Registered.. Registration requirements and proof of qualified installation commonly affect coverage, so read the warranty terms before install day.

Data sources

Show
  1. Midea America Corp.: MSEHU-H18B-2A & MO1ES-H18B-2A submittalSourced - manufacturer technical document

    Covers Frequency, Phase, Manufacturer wire notes, Voltage range, Maximum line-set length, Outdoor noise rating and more

  2. Midea America Corp.: MSEHU-H18B-2A & MO1ES-H18B-2A submittalSourced - manufacturer technical document

    Covers Voltage

  3. Air-Conditioning, Heating, and Refrigeration Institute: AHRI Appendix M1 public detail for MO1ES-H18B-2A / MSEHU-H18B-2ASourced - AHRI directory

    Covers AHRI certification number, performance_spec.cold_climate_designation, Rated cooling capacity, COP at 5F, EER2, Rated heating capacity and more

  4. ENERGY STAR: ENERGY STAR exact row check for AHRI 215471377Sourced - Energy Star listing

    Covers Energy Star status

  5. Midea America Corp.: Midea Single-Zone Advance Heat PumpSourced - manufacturer product page

    Covers Legacy warranty value, Warranty notes

  6. Midea America Corp.: Limited Warranty for Midea Brand Central Split System Air Conditioner and Heat Pump Condensing UnitsSourced - manufacturer technical document

    Covers Registered compressor warranty, Registered warranty conditions, Registered parts warranty, Base compressor warranty, Base warranty conditions, Base parts warranty

Last updated

Jul 22, 2026