Rinnai CJ Cooling Only 7 kW split system
$2,600–$3,900
estimated installed price
Cooling
7 kW
3.5 stars
Heating
None
Cooling only
Indoor noise
62.3
dB(A) sound power, quieter than 77% of its size
Running cost
$182
a year, average zone, at 33c/kWh
Short answer
The Rinnai CJ Cooling Only 7 kW split system (HONCJ70B / HINCJ70B) is a 7 kW cooling-only wall split rated 3.5 stars for cooling in the average climate zone. Installed, expect $2,600 to $3,900; the label's figures put running costs near $182 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 CJ Cooling Only
- Model numbers
- HONCJ70B / HINCJ70B
- Type
- Wall split, cooling only
- Cooling capacity
- 7 kW
- Cooling power input
- 1.95 kW
- Annual efficiency, cooling (AEER)
- 3.59
- Indoor sound power
- 62.3 dB(A)
- Outdoor sound power
- 65 dB(A)
- Refrigerant
- R32
- Power supply
- Single-phase
- Demand response capable
- Yes
- Country of manufacture
- China
- Energy Rating registration
- AAC9770
- Registration valid until
- 2031-05-04
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 | Energy a year | Cost a year |
|---|---|---|---|
| HotBrisbane, Darwin | 4 stars | 1,602 kWh | $529 |
| AverageSydney, Adelaide, Perth | 3.5 stars | 552 kWh | $182 |
| ColdCanberra, Hobart, Melbourne | 4 stars | 345 kWh | $114 |
How it compares with other 7.1 kW units
- Cooling stars (average zone): 3.5 against a median of 3.5 across 22 7.1 kW wall split units, better than 45% of them.
- Indoor sound power: 62.3 dB(A) against a median of 63.3 dB(A), quieter than 77%.
- Estimated installed price for this size: $2,600 to $3,900. Brand and install difficulty move it within that band.
See the quietest and most efficient rankings.
Other sizes in the Rinnai CJ Cooling Only range
Alternatives at 7.1 kW from other brands
Mitsubishi Electric GW Cooling Only 7.1 kW split system
MUY-GW71VFD2/MSY-GW71VFD2 Series
4 stars cooling · 62.4 dB(A)
Gree Alto 7.1 kW split system
GWC24ATEXF-K6DNA1E/O / GWC24ATEXF-K6DNA1E/I
4 stars cooling · 63.2 dB(A)
MHI Bronte 7.1 kW split system
SRC24YRA-W/SRK24YRA-WF
3.5 stars cooling · 55 dB(A)
MHI Bronte 7.1 kW split system
SRC24YRA-W/SRK24YRA-WF1
3.5 stars cooling · 55 dB(A)
Mitsubishi Electric GW Cooling Only 7.1 kW split system
MUY-GW71VFD/MSY-GW71VFD
3.5 stars cooling · 61.3 dB(A)
Hitachi airHome 500 Cooling Only 7 kW split system
RAC-DJ70PCAT/RAK-DJ70PCAT
3.5 stars cooling · 63 dB(A)
FAQ
Rinnai HONCJ70B / HINCJ70B: common questions
How much does the Rinnai CJ Cooling Only 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 CJ Cooling Only 7 kW split system cost to run?
Using the energy label's annual figures at 33c/kWh: about $529 a year in a hot zone, $182 in an average zone and $114 in a cold zone. The label assumes typical use; yours will differ with hours, set temperature and insulation.
Where is the Rinnai HONCJ70B / HINCJ70B made?
The Energy Rating register lists the country of manufacture as China.
Is the Rinnai CJ Cooling Only 7 kW split system quiet?
Its registered indoor sound power is 62.3 dB(A), against a median of 63.3 dB(A) for 7.1 kW wall split units, so it's quieter than about 77% 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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