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Rinnai J Series 7 kW split system

$2,600–$3,900

estimated installed price

HONRJ70B / HINRJ70B Also sold as HONRT70B / HINRT70B
Rinnai J Series indoor unit
Image: Rinnai. Shows the Rinnai J Series range; sizes look alike

Cooling

7 kW

3.5 stars

Heating

8.2 kW

2 stars

Indoor noise

63.7

dB(A) sound power, quieter than 50% of its size

Running cost

$552

a year, average zone, at 33c/kWh

Short answer

The Rinnai J Series 7 kW split system (HONRJ70B / HINRJ70B) is a 7 kW reverse cycle wall split rated 3.5 stars for cooling and 2 stars for heating in the average climate zone. Installed, expect $2,600 to $3,900; the label's figures put running costs near $552 a year in an average-zone home.

Prices are estimates, not quotes (how we estimate them). Rebate rules checked September 2026.

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Full specifications

Brand
Rinnai
Series
Rinnai J Series
Model numbers
HONRJ70B / HINRJ70B, HONRT70B / HINRT70B
Type
Wall split, reverse cycle (heats and cools)
Cooling capacity
7 kW
Cooling power input
2 kW
Heating capacity
8.2 kW
Heating power input
2.4 kW
Heating output at 2°C outside
6.2 kW
Annual efficiency, cooling (AEER)
3.51
Annual efficiency, heating (ACOP)
3.41
Indoor sound power
63.7 dB(A)
Outdoor sound power
63.8 dB(A)
Refrigerant
R32
Power supply
Single-phase
Demand response capable
Yes
Country of manufacture
China
Energy Rating registration
AAC9769
Registration valid until
2031-03-17

Star ratings and running cost by climate

The Zoned Energy Rating Label rates each unit for three climates. Annual energy is the label's estimate for typical use in that zone; the cost applies 33c/kWh, around the 2026–27 default electricity offer. Use the running cost calculator for your own hours and tariff.

Climate zone Cooling stars Heating stars Energy a year Cost a year
HotBrisbane, Darwin 4 stars 3.5 stars 1,759 kWh 1623 cooling, 136 heating $581
AverageSydney, Adelaide, Perth 3.5 stars 2 stars 1,673 kWh 554 cooling, 1119 heating $552
ColdCanberra, Hobart, Melbourne 4 stars 1.5 stars 3,526 kWh 344 cooling, 3182 heating $1,164

How it compares with other 7.1 kW units

See the quietest and most efficient rankings.

Other sizes in the Rinnai J Series range

Alternatives at 7.1 kW from other brands

FAQ

Rinnai HONRJ70B / HINRJ70B: common questions

How much does the Rinnai J Series 7 kW split system cost installed?

Typically $2,600 to $3,900 supplied and installed in 2026 for a standard job at this size. Longer pipe runs, a new circuit, a second storey or removing an old unit add to it. Get up to three local quotes for your actual install.

How much does the Rinnai J Series 7 kW split system cost to run?

Using the energy label's annual figures at 33c/kWh: about $581 a year in a hot zone, $552 in an average zone and $1,164 in a cold zone. The label assumes typical use; yours will differ with hours, set temperature and insulation.

Where is the Rinnai HONRJ70B / HINRJ70B made?

The Energy Rating register lists the country of manufacture as China.

Is the Rinnai J Series 7 kW split system quiet?

Its registered indoor sound power is 63.7 dB(A), against a median of 63.8 dB(A) for 7.1 kW wall split units, so it's quieter than about 50% of them. Brochures quote a lower sound pressure figure on the lowest fan speed; the register measures every model the same way.

Sources

Brand names and logos are trademarks of their owners, shown to identify the brands we compare. We are independent and not affiliated with any manufacturer.

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