Mini-splitPremium pickENERGY STAR

Mitsubishi MZ-GS12NA

4.8(60 retailer ratings) by Mitsubishi Electric · Model MZ-GS12NA (MSZ/MUZ-GS12NA)

The benchmark single-zone mini split: ultra-quiet, ultra-efficient, and famously reliable Japanese engineering.

Cooling

12,000 BTU

Covers

550 ft²

Efficiency

25.6SEER2

Noise

19 dB

$1972 est.

typical street price · via HVACDirect

Check Price

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 25.6SEER2 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 zone	Example regions	Est. 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