Rinnai JX Series 8 kW split system
$3,000–$4,300
estimated installed price
Cooling
8 kW
3.5 stars
Heating
8.5 kW
2 stars
Indoor noise
61.6
dB(A) sound power, quieter than 81% of its size
Running cost
$602
a year, average zone, at 33c/kWh
Short answer
The Rinnai JX Series 8 kW split system (HONRJX80/HINRJX80) is a 8 kW reverse cycle wall split rated 3.5 stars for cooling and 2 stars for heating in the average climate zone. Installed, expect $3,000 to $4,300; the label's figures put running costs near $602 a year in an average-zone home.
Prices are estimates, not quotes (how we estimate them). Rebate rules checked September 2026.
Compare 3 quotes for my houseFull specifications
- Brand
- Rinnai
- Series
- Rinnai JX Series
- Model numbers
- HONRJX80/HINRJX80
- Type
- Wall split, reverse cycle (heats and cools)
- Cooling capacity
- 8 kW
- Cooling power input
- 2.25 kW
- Heating capacity
- 8.5 kW
- Heating power input
- 2.33 kW
- Annual efficiency, cooling (AEER)
- 3.54
- Annual efficiency, heating (ACOP)
- 3.63
- Indoor sound power
- 61.6 dB(A)
- Outdoor sound power
- 63.4 dB(A)
- Refrigerant
- R32
- Power supply
- Single-phase
- Demand response capable
- Yes
- Country of manufacture
- China
- Energy Rating registration
- AAC8932
- Registration valid until
- 2030-05-29
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 stars | 1,973 kWh 1809 cooling, 164 heating | $651 |
| AverageSydney, Adelaide, Perth | 3.5 stars | 2 stars | 1,826 kWh 628 cooling, 1198 heating | $602 |
| ColdCanberra, Hobart, Melbourne | 4 stars | 1.5 stars | 3,787 kWh 397 cooling, 3390 heating | $1,250 |
How it compares with other 8.0 kW units
- Cooling stars (average zone): 3.5 against a median of 3 across 148 8.0 kW wall split units, better than 55% of them.
- Indoor sound power: 61.6 dB(A) against a median of 64.6 dB(A), quieter than 81%.
- Estimated installed price for this size: $3,000 to $4,300. Brand and install difficulty move it within that band.
See the quietest and most efficient rankings.
Other sizes in the Rinnai JX Series range
Alternatives at 8.0 kW from other brands
Midea EOS 8 kW split system
MFEP80VA-W/MFEP80VA-N
4 stars cooling · 59.5 dB(A)
AUX 8.2 kW split system
ASW-H80A4/LER3DI
4 stars cooling · 61.6 dB(A)
Braemar 8.5 kW split system
WCHV85D1T/WSHV85D1T
4 stars cooling · 64.6 dB(A)
Gree Hyper+ AI 8.5 kW split system
GWH28QEXH-K6DNA1E/O / GWH28QEXH-K6DNC8E/I
4 stars cooling · 64.6 dB(A)
Kogan 8 kW split system
KASSSAC80HF
4 stars cooling · 65.3 dB(A)
MHI Bronte 8 kW split system
SRK80/DXK28ZRA-WF1
3.5 stars cooling · 58 dB(A)
FAQ
Rinnai HONRJX80/HINRJX80: common questions
How much does the Rinnai JX Series 8 kW split system cost installed?
Typically $3,000 to $4,300 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 JX Series 8 kW split system cost to run?
Using the energy label's annual figures at 33c/kWh: about $651 a year in a hot zone, $602 in an average zone and $1,250 in a cold zone. The label assumes typical use; yours will differ with hours, set temperature and insulation.
Where is the Rinnai HONRJX80/HINRJX80 made?
The Energy Rating register lists the country of manufacture as China.
Is the Rinnai JX Series 8 kW split system quiet?
Its registered indoor sound power is 61.6 dB(A), against a median of 64.6 dB(A) for 8.0 kW wall split units, so it's quieter than about 81% 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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