12.4 kWCarrier QSH High Static 12.4kW Ducted System
The 12.4kW Carrier QSH High Static Ducted (indoor 42QSH125D8S-1) is rated at 12.4kW cooling and sized for typical three-bedroom single-storey homes. As a guide it covers roughly 83 to 99m² of conditioned floor area, depending on zoning, insulation and ceiling height. It runs R32 refrigerant and carries Carrier’s 7 year residential parts and labour warranty. For more bedrooms or a larger floor plan, the 13.6kW is the next step up.
The Carrier QSH High Static 12.4kW carries a 3.5-star cooling rating and a 2.5-star heating rating on the zoned energy label for Sydney's climate zone. Its rated AEER is 3.35 and ACOP is 3.91. These figures come from official government GEMS registration test data calculated for Sydney in June 2026.
Based on that data and a median Sydney electricity rate of 34.7 cents per kWh, the estimated annual cooling cost is $330 (950 kWh) and the estimated annual heating cost is $566 (1,631 kWh), giving a combined year-round running cost of around $896. Actual costs will vary with usage patterns and tariffs.
Source: Australian GEMS registry · median of 170 Sydney residential tariffs · Refreshed monthly · Last updated June 2026
Specifications
From the manufacturer’s published range data. We confirm the exact configuration when we quote.
About the Carrier QSH High Static Ducted range| Brand | Carrier |
|---|---|
| Model | 42QSH125D8S-1 |
| Series | Carrier QSH High Static Ducted |
| System type | Ducted System |
| Capacity | 12.4 kW |
| Refrigerant | R32 |
| ESP (rated/max) | up to 50 / 200 Pa |
| Power supply | 220-240V single phase |
| Warranty | 7 year parts & labour (residential) |
Other 12.4kW options
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