The Frigidaire Gallery Inverter Window Room Air Conditioner 12,000 BTU and the Perfect Aire 12,000 BTU Window Air Conditioner with Electric Heat side by side on one honest scale: cooling, room coverage, noise, energy rating and live price, with which one actually fits your room. Every number is the manufacturer's own or a live retailer price. We never invent a spec.
The verdict
For your 350 sq ft room, both the Frigidaire Gallery Inverter Window Room Air Conditioner 12,000 BTU and the Perfect Aire 12,000 BTU Window Air Conditioner with Electric Heat fit equally well. The real difference: the Frigidaire Gallery Inverter Window Room Air Conditioner 12,000 BTU is cheaper at $468. Compare their specs side by side below.
![]() Frigidaire Gallery Inverter Window Room Air Conditioner 12,000 BTUWindowENERGY STAR In stock $468 Lowest since Jul 25, 2026 $468 Buy at Abt Electronics | ![]() Perfect Aire 12,000 BTU Window Air Conditioner with Electric HeatWindow In stock $559.95 Buy at Sylvane | |
|---|---|---|
| Cooling & fit | ||
| Room fit | Fits your 32.5 m² | Fits your 32.5 m² |
| Cooling power | 12,000 BTU · 3.5 kW | 12,000 BTU · 3.5 kW |
| Covers | up to 550 sq ft | up to 550 sq ft |
| Comfort | ||
| Indoor noise | ||
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Both units are scored on the exact same scale, from the manufacturer's own published specs and the live retailer price where we have one. Room fit uses the official ENERGY STAR sizing chart, or an estimate from cooling power when a maker publishes no coverage. Where the two efficiency scales are not comparable, we never crown a winner. Nobody can pay for placement.
Read our full methodologyNot sure which kind of AC you need? See the buying guides or the system types.
The bigger questions behind this comparison, answered from live prices and real specs.
| 61 dB(A)louder than a dishwasher |
| Indoor unit size | - | Average |
|---|
| Efficiency | ||
| Energy rating | ENERGY STAR | - |
|---|---|---|
| Running cost/yr (est.) | ~$110/yr | Not rated |
| Practicalities | ||
| Heats too | No | Yes |
|---|---|---|
| Refrigerant | R-32 | - |
| Install | Plug and play | Plug and play |
| Outdoor unit | No | No |
| Price | ||
| Price | $468Best | $559.95 |
|---|---|---|