Mitsubishi Electric MSZ-FX09NL & MUZ-FX09NLHZ 9,000 BTU 33.1 SEER2 Wall Mounted Hyper-Heating Heat Pump System - R454B - MSZFX09NL/MUZFX09NLHZ
The Mitsubishi MSZ‑FX09NL, paired with the MUZ‑FX09NLHZ outdoor unit, delivers ultra-compact, high-efficiency heating and cooling in a sleek 9,000 BTU ductless system. Designed for small to medium rooms up to 350 sq ft, this single-zone heat pump is ideal for bedrooms, offices, or additions where space and noise sensitivity matter.
Equipped with INVERTER-driven compressor technology and eco-friendly R‑454B refrigerant, the system provides precise temperature control and quiet operation. The MSZ indoor unit features a low-profile design for unobtrusive wall mounting, while the MUZ condenser includes Hyper‑Heat performance for dependable warmth even in cold climates.
Whisper-quiet sound levels, advanced filtration, and smart control compatibility make this mini-split a powerful solution for compact spaces with high comfort demands.
Features
INVERTER Technology: Delivers precise, energy-saving performance
Hyper‑Heat Cold Climate Performance: Reliable heating down to -13°F outdoor temps
Space‑Saving Design: Compact wall unit is perfect for small to medium rooms or retrofit projects
Quiet Operation: Indoor sound as low as 20 dB(A) for minimal disruption
Washable Filter: Easy maintenance with reusable air filter
Smart Control Ready: Compatible with wired/wireless controllers and the Comfort app (with optional adapter)
What Our Experts Think
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9,000 BTU cooling and Hyper-Heating for rooms up to 350 sq ft.
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Ultra-compact wall-mounted design fits small spaces like bedrooms or offices.
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High-efficiency R‑454B refrigerant with 33.1 SEER2 rating.
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Quiet operation ideal for noise-sensitive environments.
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Perfect for single-zone heating and cooling needs.
Q&A
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Q: What size space is this system suitable for?
A: Best for small to medium rooms up to 350 sq ft.
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Q: Can it heat effectively in cold climates?
A: Yes, Hyper-Heating ensures efficient operation even in low ambient temperatures.
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Q: Is it energy-efficient?
A: Yes, 33.1 SEER2 efficiency with eco-friendly R‑454B refrigerant.
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Q: Is it quiet?
A: Yes, designed for minimal noise—ideal for bedrooms or offices.
Maintenance Tips
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Clean or replace air filters regularly.
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Check indoor unit for dust and debris.
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Inspect condensate drain lines for clogs.
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Schedule annual professional service for refrigerant and electrical checks.
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Maintain proper clearance around the outdoor unit for airflow and efficiency
