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Mitsubishi MZ-GS12NA

4.8(60) by Mitsubishi Electric · Model MZ-GS12NA (MSZ/MUZ-GS12NA)
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The benchmark single-zone mini split: ultra-quiet, ultra-efficient, and famously reliable Japanese engineering.

Cooling
12,000 BTU
Covers
550 ft²
Efficiency
25.6 SEER2
Noise
19 dB
$1972 est.
typical street price · via HVACDirect
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Is 12,000 BTU right for your room? Run the sizing calculator

Strengths & trade-offs

Pros
  • Whisper-quiet 19 dB indoor unit
  • Class-leading 25.6 SEER2 efficiency
  • Up to 10-yr warranty when registered
Cons
  • WiFi requires kumo cloud adapter
  • Premium price for 12K class

What the Mitsubishi MZ-GS12NA costs to run

Estimated from this unit's 25.6 SEER2 rating at 8 hours/day of cooling, using average residential electricity rates for each US climate zone. Your usage and utility rate will shift these numbers — run the calculator for your exact room.

Climate zoneExample regionsEst. cost / month
Cool North Pacific NW, Upper Midwest, New England $21 /mo
Mixed / Temperate Mid-Atlantic, Midwest, Mountain $22 /mo
Hot & Humid Southeast, Gulf Coast, Texas $18 /mo
Hot & Dry Southwest, Desert $19 /mo

Full specifications

Type Mini-split air conditioner
Cooling capacity 12,000 BTU
Rated coverage 550 ft²
Efficiency 25.6 SEER2
Noise (low) 19 dB
Smart features None
ENERGY STAR Yes
Model number MZ-GS12NA (MSZ/MUZ-GS12NA)
Typical street price $1972

Specs from manufacturer data; price and ratings are snapshots and may vary. See how we evaluate.

Similar units

Compare it against

Full comparison table
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Best efficiency
Mini-splitENERGY STAR

MRCOOL DIY 4th Gen 12K

4.6(1,510)
Cooling
12,000 BTU
Covers
500 ft²
Efficiency
22 SEER2
Noise
32 dB
$1099 est.
via partner retailers