Rinnai
******DO NOT BUY*******TESTING ONLY******Rinnai Split System Air Conditioner TX Series 3.5KW
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Smart, powerful air conditioning for Australian homes
The Rinnai TX Series 3.5kW Inverter Split System Air Conditioner delivers powerful, energy-efficient heating and cooling for Australian homes. Ideal for medium-sized living areas, larger bedrooms, and home offices, this split system provides heating and cooling for year-round comfort in Australia’s ever-changing climate. Advanced inverter technology ensures consistent temperatures while helping to reduce energy usage and running costs.
This smart air conditioner comes with built-in Wi-Fi and voice control, allowing you to manage settings remotely via the NetHome Plus App+ or compatible Google Assistant and Amazon Alexa devices. Its high-performance HEPA filtration system improves indoor air quality by reducing bacteria and capturing fine dust particles, promoting a healthier home environment.
Designed for durability, the outdoor unit features Rinnai’s GoldGuard coating, providing superior corrosion resistance for reliable performance, even in coastal and harsh environments.
Dimensions:
Features
- Ideal for mid-sized living areas, larger bedrooms, home offices (16-23m2)
- Up to 5.0 star energy efficiency rating in cooling mode^
- Quiet operation
- Turbo function
- HEPA air filtration
- Wi-Fi and Voice control compatible with Google Home/Amazon Alexa
Energy Efficient Design
- Up to 5.0 star energy efficiency rating – in cooling mode (^hot climates)
- R32 refrigerant** – Eco-friendly refrigerant with lower global warming potential
- Demand control – demand response capability (DRED) to help reduce overall power consumption at critical peak load times (Subject to availability from your energy provider)
- Inverter technology – maintains consistent temperature and reduce running costs
Superior Technology
- Smart Wi-Fi and Voice control – allows for convenient control from anywhere with the NetHome Plus App+ (App available from the Apple Store or Google Play, and is compatible with Google Home and Amazon Alexa)
- Delay timer – turns appliance on/off within a specific time period
- HEPA air filtration – Removes up to 99% of dust and reduces bacteria for healthier indoor air
- Dehumidifying mode – Helps manage humidity during hot and humid Australian summers
- Turbo mode – Quickly cool in summer or swiftly warm in winter
- 3D airflow – Adjustable air flow direction allowing for balanced room temperature and comfort
- Quiet operation – Low-noise design ideal for bedrooms and living areas
Rinnai Quality
- Superior GoldGuard Corrosion Protection*** – coil coating for long-lasting performance in coastal and harsh Australian conditions
- 7 year residential warranty*
Download NetHome Plus App
FAQs
How much does it cost to run a Split System?
Running costs depend on the unit size, energy efficiency, electricity rates and how often it’s used.
As a rough guide:
- 2.5–3.5 kW unit: ~$0.60–$1.00 per hour
- 5.0–7.0 kW unit: ~$1.00–$2.00 per hour
Inverter Split Systems adjust their output once the room reaches temperature, which helps keep running costs down.
What size Split System do I need?
The right size depends on room size, ceiling height, insulation, window size and how much sun the room gets.
As a rule of thumb:
- Bedrooms: 2.5–3.5 kW
- Living areas: 5.0–7.0 kW
- Large open-plan spaces: 8.0 kW+
An installer can confirm with a heat load calculation.
Are Split Systems energy efficient?
Yes. Modern split systems are among the most energy-efficient ways to heat and cool a home.
Look for:
- High star ratings (Cooling & Heating)
- Inverter technology
- Zoning by room (only heat/cool where needed)
Can a Split System heat my home as well as cool it?
Yes. Reverse-cycle split systems both heat and cool and are very efficient, even in colder climates.
They use electricity to move heat rather than create it, making them cheaper to run than many traditional heaters.
What temperature should I set my air conditioner to?
For comfort and efficiency:
- Cooling: 23–25°C
- Heating: 18–20°C
Every degree outside these ranges can significantly increase energy use.
How long does a Split System last?
With proper installation and maintenance:
- 10–15 years is typical
Coastal or dusty environments may require more frequent servicing.


