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Mitsubishi 24,000 BTU HX-Series 20 SEER2 Single Zone Wall Mount Mini Split Heat Pump System - R454B | 230V

Mitsubishi 24,000 BTU HX-Series 20 SEER2 Single Zone Wall Mount Mini Split Heat Pump System - R454B | 230V

Mitsubishi| SKU: MUZ-HX24NL + MSZ-HX24NL-4 In Stock

$2,959.50$3,699.3820% off

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Free Delivery Jul 25-Aug 1 (Est.)
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Protection plan

Use your system worry-free for years to come

  • Comprehensive coverage for mechanical and electrical breakdowns, including power surges
  • Repairs covered 100% for the extended term — labor included, not just parts
  • Coverage for normal wear and tear that affects how the product works
  • Replacement or reimbursement if we can’t repair it
  • $0 deductibles, ever
  • Cancel anytime on a pro-rata basis
  • US-based support and quick claims filing
2-year protection · $149Add two years of optional service contract coverage. 5-year protection · $299Add five years of optional service contract coverage.

Coverage begins after the manufacturer warranty applies, and runs alongside it for items the factory doesn’t cover. Select a plan above the Add to Cart button to include it with your order.

Backed by Chill Mini Splits · (888) 231-8920Detailed terms and conditions

Product overview

Mitsubishi HX-Series 24K BTU Single-Zone Ductless Mini Split Heat Pump

Efficient, quiet comfort for one dedicated space. This Mitsubishi HX-Series ductless mini split pairs the MUZ-HX24NL outdoor heat pump with the MSZ-HX24NL wall-mounted indoor unit for dependable heating and cooling without adding ductwork.

With 22,400 BTU of rated cooling, 26,000 BTU of rated heating, and 20.0 SEER2 efficiency, this system is a strong fit for large rooms, open living spaces, finished basements, additions, and high-load spaces where comfort needs to be controlled separately from the rest of the home.

Not sure if 24K is the right size? Confirm your room load, insulation, sun exposure, and installation plan before ordering so the system is matched correctly to the space.

At a Glance:

Best For One-zone heating and cooling with a quiet wall-mounted indoor unit
System Models MUZ-HX24NL outdoor unit + MSZ-HX24NL indoor unit
Capacity 22,400 BTU cooling / 26,000 BTU heating
Efficiency 20.0 SEER2 / 11.75 EER2 / 9.5 HSPF2
Low-Temperature Heating Capacity 18,200 BTU at 5F
Voltage 208/230V, 1 phase
Refrigerant R-454B
Installation Type Professional HVAC installation recommended

Why Choose This Mitsubishi 24K System?

  • Dedicated zone comfort: Heat and cool one room or open area without tying the space to a central duct system.
  • Efficient inverter performance: Mitsubishi inverter technology adjusts output as conditions change, helping maintain steadier comfort than basic on/off systems.
  • Year-round heat pump operation: Provides both air conditioning and heating from the same system, with 18,200 BTU of rated heating capacity at 5F.
  • Quiet wall-mounted design: The compact indoor unit mounts high on the wall to distribute air through the room while keeping floor space open.
  • Modern R-454B refrigerant: Built for Mitsubishi's current R-454B equipment generation.
  • Warranty confidence: Mitsubishi lists a 10-year parts and compressor limited warranty when eligible equipment is registered within 90 days, subject to warranty terms.

What Is Included?

  • 1 Mitsubishi MUZ-HX24NL outdoor heat pump condenser
  • 1 Mitsubishi MSZ-HX24NL wall-mounted indoor air handler
  • Wireless remote control capability for the indoor unit

Before You Order:

  • Have your installer confirm the room load and that a 24K system is appropriate for the space.
  • Confirm line-set length, indoor and outdoor placement, condensate routing, electrical requirements, and local code requirements before purchase.
  • This is not a DIY quick-connect system. Refrigerant piping, evacuation, electrical work, startup, and commissioning should be handled by a qualified HVAC professional.
  • Line sets, wall brackets, disconnects, pads, electrical materials, and installation accessories may be sold separately unless specifically included.

Frequently Asked Questions:

What size room is this best for?
A 24K mini split is commonly used for large rooms, open living spaces, finished basements, additions, and high-load spaces, but the right size depends on room load, insulation, ceiling height, windows, sun exposure, and climate. A qualified installer should confirm sizing.

Does this system heat and cool?
Yes. This is a heat pump system designed for both air conditioning and heating.

Is this a DIY system?
No. This Mitsubishi system should be installed by a qualified HVAC professional.

Does it use R-454B refrigerant?
Yes. The MUZ-HX24NL / MSZ-HX24NL system is part of Mitsubishi's R-454B equipment lineup.

Specifications:

BRAND NAME Mitsubishi
SERIES HX-Series
SYSTEM TYPE Ductless mini split heat pump
OUTDOOR MODEL MUZ-HX24NL
INDOOR MODEL MSZ-HX24NL
ZONE CAPACITY 1 zone
COOLING CAPACITY 22,400 BTU
HEATING CAPACITY 26,000 BTU
HEATING CAPACITY AT 5F 18,200 BTU
AHRI CERTIFICATE NUMBER 215862743
SEER2 20.0
EER2 11.75
HSPF2 9.5
REFRIGERANT TYPE R-454B
POWER SUPPLY 208/230V, 1 phase
MAX OVERCURRENT PROTECTION 40 A
LINE SET SIZE 1/4 in liquid / 1/2 in gas
OUTDOOR DIMENSIONS 33 in W x 35 in H x 13 in D
INDOOR DIMENSIONS 36 in W x 12 in H x 11 in D
REGISTERED WARRANTY 10-year parts and compressor limited warranty when registered within 90 days; terms apply
NON-REGISTERED WARRANTY 5-year parts / 7-year compressor limited warranty; terms apply

In-stock systems ship fast and free with curbside freight delivery, typically arriving in 4–10 days. Please inspect each box at delivery and note any damage on the receipt before signing — it keeps any freight claim quick and simple.

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At a glance

Tech specs

Condenser capacity12,000
Indoor unit(s)12,000
Coverage area550 Sq Ft.
Zones / rooms1 Zone
Efficiency20 SEER2
Power230 Volt
Mount typeWall
BrandMitsubishi

Sizing in doubt? Our HVAC experts confirm capacity for your rooms before you order — free. Ask us about utility rebates for high-efficiency heat pumps in your area.