5 kWRinnai PB Series 5kW Split System
The 5kW Rinnai PB Series Split (model HSNRP50B) is sized for living rooms and master suites. As a guide it suits a typical insulated room of roughly 33 to 40m²; sun exposure and ceiling height move that band. It is the largest capacity in the range.
The Rinnai PB Series 5kW is registered with the Australian government's GEMS database for Sydney's climate zone. In cooling mode, it consumes 360 kWh annually and carries a 4-star energy rating. For heating, it uses 683 kWh per year with a 2.5-star rating. These figures reflect typical seasonal use patterns in Sydney and form the basis for calculating your running costs against current electricity rates.
The system's cooling efficiency is rated at 3.90 AEER, while heating efficiency is 4.02 ACOP. Both ratings indicate how much cooling or heating output you receive per unit of electrical energy consumed. The unit operates on R32 refrigerant. Your actual energy use will vary depending on thermostat settings, usage patterns and home insulation.
Source: Australian GEMS registry · median of 170 Sydney residential tariffs · Refreshed monthly · Last updated June 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 | HSNRP50B |
| Series | Rinnai PB Series Split |
| System type | Split System |
| Capacity | 5 kW |
| Refrigerant | R32 |
