Mitsubishi Heavy Industries

MHI Ciara 3.3kW Split System

Model DXK12ZTLA-WF

The 3.5kW MHI Ciara Split (model DXK12ZTLA-W) is sized for large bedrooms and smaller living rooms. As a guide it suits a typical insulated room of roughly 23 to 28m²; sun exposure and ceiling height move that band. If the space is bigger, has high ceilings or strong afternoon sun, step up to the 5kW.

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Energy efficiencyRegistered: DXC12ZTLA-W/DXK12ZTLA-WF
3 starsCooling ratingSydney climate zone
3 starsHeating ratingSydney climate zone
285 kWhCooling energy / yearabout $99 at the Sydney median rate
452 kWhHeating energy / yearabout $157 at the Sydney median rate
3.60AEERACOP 4.14
What it costs to run

The MHI Ciara 3.3kW uses 285 kWh per year for cooling and 452 kWh per year for heating, based on official GEMS testing for Sydney's climate zone. Both functions carry a 3-star energy rating under the zoned labelling system, indicating moderate efficiency for this climate. The system achieves a cooling efficiency rating (AEER) of 3.60 and a heating efficiency rating (ACOP) of 4.14.

Your actual running costs depend on your local electricity rate and how often you run the unit. The verified annual energy consumption figures above let you calculate expected costs using your current Sydney rate. The system uses R32 refrigerant.

Source: Australian GEMS registry · median of 170 Sydney residential tariffs · Refreshed monthly · Last updated June 2026

The details

Specifications

From the manufacturer’s published range data. We confirm the exact configuration when we quote.

About the MHI Ciara Split range
Documentation
BrandMitsubishi Heavy Industries
ModelDXK12ZTLA-WF
SeriesMHI Ciara Split
System typeSplit System
Capacity3.3 kW
RefrigerantR32
Warranty5 year parts & labour