Mitsubishi HX Series 24,000 BTU Ductless Mini-Split Heat Pump System
The Mitsubishi HX 24,000 BTU system delivers two tons of value-priced ductless heating and cooling from the MUZ-HX24NL outdoor heat pump and the MSZ-HX24NL wall-mounted air handler. Rated at 20 SEER2 on R454B refrigerant and supplied with a wireless remote, it is built to condition large open living areas from a single high-output head — including its strong 26,000 BTU/h of heating at 47°F.
Is 24,000 BTU the Right Size?
Two tons of capacity is a big single-zone step and the largest system in the HX line. As a general guideline it suits open areas of roughly 1,000 to 1,400 square feet, providing 22,400 BTU/h of cooling and 26,000 BTU/h of heating at 47°F — making it attractive for homeowners supplementing or replacing electric heat in a great room.
Because it pushes a lot of output through one indoor head, airflow reach matters. Open sight lines from the head to the far corners of the room give the best result; long, narrow, or partitioned layouts distribute two tons less evenly.
Ideal for: open great rooms, large basements, combined living-dining areas, and light-commercial spaces that need two-ton comfort at a competitive price.
Prefer a smaller step? The Mitsubishi HX 18,000 BTU system covers slightly smaller areas, or compare the higher-efficiency GX 24,000 BTU system at 21.5 SEER2.
Recommended room sizes are general guidelines only. Actual requirements depend on insulation, ceiling height, sun exposure, climate, and room use. Request free sizing assistance, contact Budget Heating, or call 813-885-7999.
What's Included
| Outdoor Condenser | MUZ-HX24NL — 24,000 BTU Inverter Heat Pump |
|---|---|
| Indoor Air Handler | MSZ-HX24NL Wall-Mounted Evaporator |
| System Type | Single-Zone Ductless Mini-Split Heat Pump |
| Refrigerant | R454B (low-GWP A2L) |
| Cooling Capacity | 22,400 BTU/h (5,800–22,400 range) |
| Heating Capacity (47°F) | 26,000 BTU/h |
| Efficiency | 20 SEER2 / 9.5 HSPF2 / 11.75 EER2 |
| Compressor | Inverter-Driven (SRB172FQHM) |
| Condenser Electrical | 208/230V, 1 Phase, 60 Hz — 23A MCA |
| Included Controller | Wireless Remote (with batteries) |
| Max Line Length / Height | 100 ft / 50 ft |
The MUZ-HX24NL moves to the largest HX outdoor cabinet (33-1/16" W × 13" D × 34-5/8" H, 115 lb) and a 5/8-equivalent 1/2" gas line with 1/4" liquid, carrying a 3 lb R454B charge and extended allowances of up to 100 ft of line and 50 ft of height. A wireless remote with batteries is included, and its 5.5 pt/h dehumidification is the strongest in the HX line.
Outdoor & Indoor Unit Features
MUZ-HX24NL Outdoor Condenser
- Two-ton SRB172 inverter compressor
- Strong 26,000 BTU/h heating output at 47°F
- Factory-charged with 3 lb of R454B
- Linear expansion valve refrigerant control
- Reverse-cycle automatic defrost
- Extended 100 ft line length and 50 ft height allowance
- 1/2" gas and 1/4" liquid flared connections
- 208/230V single-phase, 25A max fuse, 23A MCA
- Largest HX cabinet 33-1/16" × 13" × 34-5/8", 115 lb
- 54 dB(A) cooling sound level
MSZ-HX24NL Indoor Air Handler
- High-output 36-5/16"-wide wall head for large rooms
- Included wireless remote controller with batteries
- Strongest HX dehumidification, up to 5.5 pt/h in Dry mode
- Four-speed fan spanning Super High to Low
- Auto horizontal vane airflow control
- Auto-restart after power interruptions
- Weekly timer scheduling
- Emergency operation switch as a remote backup
- Operation indicator lamp
- Lightweight 28 lb cabinet
Specifications & Manuals
Product documentation includes indoor and outdoor technical specifications, service references, and installation and operation instructions to assist with selection, installation, and service.
Frequently Asked Questions
Is 24,000 BTU the same as a two-ton system?
Yes. Twenty-four thousand BTU/h equals two tons of cooling. The MUZ-HX24NL is the two-ton, top-of-line HX system, delivering 22,400 BTU/h of rated cooling.
Does the HX24 include a wireless remote?
Yes. The MSZ-HX24NL ships with a wireless remote controller and batteries, and the indoor unit also has an emergency operation switch as a backup.
Can the HX24 help replace electric heat in a great room?
Its 26,000 BTU/h of heating at 47°F makes it a strong candidate for reducing or replacing electric resistance heat in an open great room, subject to a heat-loss calculation for your climate.
What line-set allowances does the 24,000 BTU HX have?
It supports up to 100 feet of refrigerant line and a 50-foot height difference — more than the 65 ft / 40 ft of the smaller HX models — using a 1/2" gas and 1/4" liquid line set.
How much humidity can the MSZ-HX24NL remove?
Up to about 5.5 pints per hour in Dry mode, the highest in the HX line, which helps in large or humid rooms.
Should I choose the HX24 or the GX24?
The HX24 offers two-ton comfort at 20 SEER2 for the best value. The GX24 reaches 21.5 SEER2 and adds premium features like built-in Wi-Fi if efficiency and app control are priorities.
MUZ HX Technical SpecificationsMUZ HX Service ManualMSZ HX Technical SpecificationsMSZ HX Service ManualMSZ HX 18k to 24k Installation InstructionsMSZ HX 18k to 24k Operation Instructions
