8 kWRinnai PB Series 8kW Split System
The 8 kW size of the Rinnai PB Series Split cools a room of up to about 57 to 67 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. We confirm sizing from your details and photos, or on a site visit, before quoting.
Part of the Rinnai PB Series Split range, Rinnai'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 8 kW options, see every 8kW split system ranked by running cost, or ask about supply and installation.
About $566 a year at the current Sydney median electricity rate: $209 of cooling plus $357 of heating, from the official GEMS test figures.
The Rinnai PB Series 8kW uses 630 kWh annually for cooling and 1077 kWh annually for heating, based on official GEMS testing in Sydney's climate zone. These figures reflect typical household use patterns and allow you to calculate running costs using your current electricity rate. The system's rated cooling efficiency (AEER) is 3.54 and heating efficiency (ACOP) is 3.63.
The unit carries a 3.5-star energy rating for cooling and 2.5-star rating for heating under the Sydney zoned label. It uses R32 refrigerant. Your actual energy consumption will depend on how often you run the system, your temperature settings, and how well your home 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 Rinnai PB Series Split range| Brand | Rinnai |
|---|---|
| Model | HSNRP80B |
| Series | Rinnai PB Series Split |
| System type | Split System |
| Capacity | 8 kW |
| Refrigerant | R32 |
