7.1 kWMitsubishi Electric SEZ-M 7.1kW Bulkhead / Slim Duct
The largest SEZ bulkhead at 7.1 kW rated cooling, for open zones of up to about 51 to 59 square metres that want ducted-style discretion without a full ducted system. 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.
Part of the Mitsubishi Electric SEZ-M Bulkhead range, Mitsubishi Electric's bulkhead / slim duct line, in 5 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 7.1 kW options, or ask about supply and installation.
About $571 a year at the current Sydney median electricity rate: $222 of cooling plus $349 of heating, from the official GEMS test figures.
The Mitsubishi Electric SEZ-M 7.1kW uses 671 kWh annually for cooling and 1053 kWh for heating under official GEMS testing in Sydney's climate zone. These figures reflect typical usage patterns and allow you to calculate running costs using current local electricity rates. The system holds a 2.5 star energy rating for both cooling and heating modes under the zoned labelling scheme.
Efficiency is measured by AEER for cooling at 3.28 and ACOP for heating at 3.56. The system uses R32 refrigerant. Your actual energy consumption will depend on your usage patterns, thermostat settings, and how well your space is insulated and sealed.
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 Mitsubishi Electric SEZ-M Bulkhead range| Brand | Mitsubishi Electric |
|---|---|
| Model | SEZ-M71DA3 |
| Series | Mitsubishi Electric SEZ-M Bulkhead |
| System type | Bulkhead / Slim Duct |
| Capacity | 7.1 kW |
| Refrigerant | R32 |
| Outdoor units | SUZ-M VAD2 series |
| Power | 230V single phase |
