20 kWRinnai D Series Ducted 20kW Ducted System
The 20kW Rinnai D Series Ducted (model DINLR20Z7) is sized for large two-storey family homes. As a guide it covers roughly 133 to 160m² of conditioned floor area, depending on zoning, insulation and ceiling height. For a larger floor plan, the 24kW is the next step up.
The Rinnai D Series Ducted 20kW uses 2169 kWh per year for cooling and 3050 kWh per year for heating under official GEMS testing conditions for Sydney's climate zone. These figures represent actual energy consumption in typical use and form the basis of your running cost estimate, which updates automatically with current Sydney electricity rates.
The system carries 2-star energy ratings for both cooling and heating under the zoned labelling system for Sydney. It achieves a rated cooling efficiency of 3.27 AEER and heating efficiency of 3.56 ACOP. Your actual energy use may vary depending on how you operate the system, your home's insulation, and local climate conditions.
Source: Australian GEMS registry · median of 150 Sydney residential tariffs · Refreshed monthly · Last updated July 2026
Specifications
From the manufacturer’s published range data. We confirm the exact configuration when we quote.
About the Rinnai D Series Ducted range| Brand | Rinnai |
|---|---|
| Model | DINLR20Z7 / DONSR20Z9 |
| Series | Rinnai D Series Ducted |
| System type | Ducted System |
| Capacity | 20 kW |
| Refrigerant | R32 |
Other 20kW options
All ducted systems
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Model FDYQN200LCV1 / RZQ200MY1. Whole home, Zoning ready

Toshiba Digital Inverter 20kW
Model RAV-RM2241DTP-E2 / RAV-GM2241AT8-A-3-PHASE. Medium & high static, Commercial grade

Samsung Premium 20kW
Model AC200JNHFKH. Premium tier, High capacity