3.5 kWPanasonic RZ 3.5kW Split System
The 3.5 kW Panasonic RZ Split System cools a room of up to about 25 to 29 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 Panasonic RZ Split System range, Panasonic's split system line, in 7 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 3.5 kW options, see every 3.5kW split system ranked by running cost, or ask about supply and installation.
About $229 a year at the current Sydney median electricity rate: $80 of cooling plus $149 of heating, from the official GEMS test figures.
The Panasonic RZ 3.5kW uses 242 kWh per year for cooling and 451 kWh per year for heating under standard test conditions for Sydney's climate zone. These figures come from the official GEMS energy rating register. The system carries a 4-star cooling efficiency rating and a 3-star heating efficiency rating for Sydney.
Efficiency is measured by AEER for cooling (4.33) and ACOP for heating (4.61). The unit uses R32 refrigerant. Your actual running costs depend on how often you run the system and your local electricity rate, which is calculated separately on this page.
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 Panasonic RZ Split System range| Brand | Panasonic |
|---|---|
| Model | CS-RZ35XKR / CU-RZ35XKR |
| Series | Panasonic RZ Split System |
| System type | Split System |
| Capacity | 3.5 kW |
