Buyer's Guide - WA Split Systems
Whether you're replacing an old unit or buying a split system for the first time, choosing the right air conditioner can make a huge difference in comfort and energy efficiency. This guide covers everything you need to know to make the right choice for your home or office in Perth and greater WA.
1. What is a Split System Air Conditioner?
A split sytem consists of two main components:
- Indoor unit - installed inside the room to distribute cool or warm air.
- Outdoor unit - installed outside to release or absorb heat.
Split systems are ideal for cooling or heating individual rooms or open-plan spaces, making them a popular choice for WA homes.
2. Choosing the right size
Selecting the correct size is essential. An undersized unit will struggle on hot days, while an oversized one can waste energy. Here's a general guide:
Room Size
Suggested Capacity
Up to 20m²
2.0 - 2.5 kW
20m² – 40m²
2.5 - 5.0 kW
40m² – 60m²
5.0–7.0 kW
60m² and above
7.0 kW+
Note: Room orientation, ceiling height, insulation, and windows can affect capacity needs. If unsure, contact us for personalised advice.
3. Features and Modes
- Inverter Technology – Adjusts power output to maintain temperature efficiently
- Wi-Fi Control – Control your system from your smartphone
- Inverter Technology – Adjusts power output to maintain temperature efficiently
- Quiet Mode – Ideal for bedrooms or home offices
- &Air Purification Filters – Great for allergy or asthma sufferers
- Sleep & Eco Modes – Save energy while maintaining comfort
4. Energy Efficiency
Look for the energy star rating and seasonal efficiency ratings (SEER and HSPF). A more efficient system may cost more upfront but will save you on running costs.
Tip: Check the zoning and usage patterns in your home to decide where a split system will be most efficient.
5. Heating and Cooling in WA
In Perth's hot summers and mild winters, reverse-cycle split systems offer the best of both worlds — efficient cooling in summer and heating in winter.
Make sure the model you choose is designed to perform well in WA's climate especially in temperatures that can exceed 40°C in summer.
6. Installation Matters
Correct installation is critical to performance, energy efficiency, and the validity of your warranty. At WA Split Systems, we only use licensed local installers who are familiar with WA building standards and climate conditions. We'll connect you with our approved installer network when you purchase a system from us.
Please note: To be eligible for the 5-year manufacturer's warranty your unit must be installed by a WA Split Systems licensed installer.
7. Maintenance Tips
Regular maintenance will keep your system running efficiently:
- Clean filters every 1–2 months
- Keep the outdoor unit clear of debris
- Schedule professional servicing annually
We recommend servicing before summer to ensure peak performance during the hottest months.
8. Why Buy from WA Split Systems?
- Perth-based online store serving only WA customers
- Trusted local installer network
- Competitive pricing on top-rated brands
- Professional advice without the retail markup
- Fast delivery within WA
Still Have Questions?
Our friendly team is ready to help you choose the right unit for your space.
Email: support@wasplitsystems.com.au
Phone: (08) 6184 5764
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