2.5 kWCarrier Indigo 2.5kW Split System
The 2.5 kW Carrier Indigo Split System cools a room of up to about 18 to 21 square metres as a guide. That is from Mitsubishi Heavy Industries' sizing chart for an insulated room: the larger figure if it faces north, the smaller if it faces east. Sun exposure, ceiling height and insulation move those figures, which is why we confirm sizing before we quote.
Part of the Carrier Indigo Split System range, Carrier's split system line, in 6 sizes. Running costs below use the Sydney median rate; the Eastern Suburbs and Western Sydney pages cost systems on their own network tariffs. Check the size against your rooms, compare it with other 2.5 kW options, see every 2.5kW split system ranked by running cost, or ask about supply and installation.
About $141 a year at the current Sydney median electricity rate: $48 of cooling plus $93 of heating, from the official GEMS test figures.
The Carrier Indigo 2.5kW uses 146 kWh annually for cooling and 281 kWh annually for heating under official GEMS testing in Sydney's climate zone. These figures account for typical residential use patterns and allow you to calculate your running costs based on current electricity rates. The system achieves a 6-star energy rating for cooling and 3.5 stars for heating, both zoned to Sydney conditions.
The Carrier Indigo 2.5kW delivers an AEER (cooling efficiency) of 4.98 and an ACOP (heating efficiency) of 5.16. These ratings indicate how much cooling or heating output you receive per unit of electricity consumed. The system uses R32 refrigerant, a modern low-GWP option. Combined with the verified annual energy figures, these efficiency ratings help you understand the unit's operating performance in your home.
Source: Australian GEMS registry · median of 170 Sydney residential tariffs, including GST · Refreshed monthly · Last updated October 2026
Specifications
From the manufacturer’s published range data. We confirm the exact configuration when we quote.
About the Carrier Indigo Split System range| Brand | Carrier |
|---|---|
| Model | 42QAG026N8 / 38QAG026N8 |
| Series | Carrier Indigo Split System |
| System type | Split System |
| Capacity | 2.5 kW |
