Rinnai ducted air conditioning outdoor unit

20 kW

Rinnai D Series Ducted 20kW Ducted System

Name: Rinnai D Series Ducted 20kW Ducted System
Brand: Rinnai

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.

All Rinnai D Series Ducted sizes

7kW 10kW 12kW 14kW 17kW 20kW

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Supply & install pricing

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1300 300 302

24/7 emergency repairs Manufacturer warranty + our workmanship warrantyPhotos & details get you a sharper price

Energy efficiencyRegistered: DONSR20Z9

2 starsCooling ratingSydney climate zone

2 starsHeating ratingSydney climate zone

2169 kWhCooling energy / yearabout $753 at the Sydney median rate

3050 kWhHeating energy / yearabout $1059 at the Sydney median rate

3.27AEERACOP 3.56

What it costs to run

Based on official government test data for Sydney's climate zone, the Rinnai D Series 20kW ducted system carries a 2-star energy rating for both cooling and heating. Annual energy use is 2169 kWh for cooling and 3050 kWh for heating. At the median Sydney residential electricity rate of 34.7 cents per kWh (170 plans, June 2026), that works out to roughly $753 for cooling, $1059 for heating, and $1812 combined per year.

The rated AEER is 3.27 and the rated ACOP is 3.56, meaning the unit delivers around 3.27 units of cooling and 3.56 units of heating for each unit of electricity consumed. The refrigerant is R410A.

Source: Australian GEMS registry · median of 170 Sydney residential tariffs · Refreshed monthly · Last updated June 2026

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