Mini-split

Della QC Series 12K

4.4(520 retailer ratings) by Della · Model QC Series 12K 230V

Della's QC series is one of Amazon's cheapest credible 12K systems that still hits 21 SEER2.

Cooling

12,000 BTU

Covers

550 ft²

Efficiency

21SEER2

Noise

25 dB

$749 est.

typical street price · via Amazon

Check Price

Is 12,000 BTU right for your room? Run the sizing calculator

Strengths & trade-offs

Pros

Bargain price with WiFi and Alexa
25 dB whisper-quiet low mode
Efficient R32 refrigerant

Cons

Thin dealer and service network
Warranty requires pro installation

What the Della QC Series 12K costs to run

Estimated from this unit's 21SEER2 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	$25 /mo
Mixed / Temperate	Mid-Atlantic, Midwest, Mountain	$27 /mo
Hot & Humid	Southeast, Gulf Coast, Texas	$22 /mo
Hot & Dry	Southwest, Desert	$24 /mo

Full specifications

Type	Mini-split air conditioner
Cooling capacity	12,000 BTU
Rated coverage	550 ft²
Efficiency	21 SEER2
Noise (low)	25 dB
Smart features	App, Voice, Scheduling
ENERGY STAR	No
Model number	QC Series 12K 230V
Typical street price	$749