Rinnai

Rinnai D Series Ducted 20kW Ducted System

Model DINLR20Z7 / DONSR20Z9

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.

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Energy efficiencyRegistered: DONSR20Z9
2 starsCooling ratingSydney climate zone
2 starsHeating ratingSydney climate zone
2169 kWhCooling energy / yearabout $653 at the Sydney median rate
3050 kWhHeating energy / yearabout $919 at the Sydney median rate
3.27AEERACOP 3.56
What it costs to run

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

The details

Specifications

From the manufacturer’s published range data. We confirm the exact configuration when we quote.

About the Rinnai D Series Ducted range
BrandRinnai
ModelDINLR20Z7 / DONSR20Z9
SeriesRinnai D Series Ducted
System typeDucted System
Capacity20 kW
RefrigerantR32