Split System Air Conditioners

At HVAC Direct, we supply split system air conditioner solutions that continue to be one of Australia’s most popular and energy-efficient heating and cooling options. Rinnai air conditioning systems are designed with two core components: an indoor unit that distributes conditioned air inside your home, and an outdoor condenser that releases heat externally. This separated design makes a split ac unit quiet, efficient and ideal for year-round comfort. Whether you refer to it as a split system aircon unit or split AC unit, the technology delivers reliable temperature control with excellent energy performance.

We offer small split system air conditioner options perfect for bedrooms and apartments, along with flexible multi split system air conditioner setups that can service multiple rooms from one outdoor unit. Compact mini split system air conditioner models are also available for tighter spaces. As a trusted Australian supplier of Rinnai air conditioners, HVAC Direct provides competitive pricing, fast dispatch from Melbourne, and dependable customer support you can rely on.

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Choosing the Right Split System Air Conditioner for Your Space

Selecting the right split air conditioning systems begins with correctly matching the kW output to your room size. Smaller spaces like bedrooms, studies or apartments typically suit a small split system air conditioner, delivering efficient comfort without overspending on capacity. In contrast, open-plan living areas, larger family rooms or light commercial offices require higher kW output to maintain even temperatures. If you’re conditioning several rooms, a multi split system air conditioner lets you connect multiple indoor units to one outdoor condenser — ideal for homes wanting whole-of-house flexibility. A compact mini split unit AC can also be a smart solution for tight wall space or targeted zones.

Pay close attention to energy efficiency ratings, as higher star ratings reduce long-term running costs. Check indoor and outdoor noise levels, particularly for bedrooms or meeting rooms. Most modern systems provide both heating and cooling, ensuring reliable year-round performance and better overall value.

Why Buy Your Split System Air Conditioner from HVAC Direct?

When you buy a split system air conditioner from HVAC Direct, you’re partnering with a competitive Australian supplier committed to value and reliability. We offer sharp pricing across leading brands, including trusted Rinnai split system air conditioner models recognised for energy efficiency and dependable performance. Whether you’re a homeowner upgrading a lounge room or bedroom, or a trade installer sourcing multiple split system aircon unit packages for a project, we make comparing models and securing quality equipment straightforward and cost-effective.

All stock is dispatched from our Melbourne warehouse, ensuring fast turnaround and Australia-wide shipping to both metro and regional locations. For added convenience, local pickup is also available. Our knowledgeable support team is ready to assist with sizing guidance, product comparisons and ordering queries — keeping advice clear and practical for mixed audiences. With competitive pricing, recognised brands and responsive service.

FAQ of Split System Air Conditioners

What is a split system air conditioner?

A split system air conditioner consists of an indoor unit mounted inside the room and an outdoor compressor connected by insulated refrigerant piping. This design allows efficient heat transfer while keeping noise outside. Many split air conditioning systems provide both heating and cooling, delivering reliable year-round climate control for homes and small businesses.

What size split system air conditioner do I need?

Choosing the right split system air conditioner starts with matching the unit’s capacity to your room size and insulation. As a general guide, small bedrooms or studies may need 2–3 kW, medium living areas 4–6 kW, and larger open-plan spaces 7 kW or more. Well-insulated rooms retain temperature better, while poorly insulated areas may require higher capacity. For precise sizing, it’s always best to consult a licensed installer who can calculate exact cooling and heating loads, ensuring your split system aircon unit operates efficiently and comfortably year-round.

What is the difference between a mini split system and a multi split system air conditioner?

A mini split system generally refers to a single indoor unit paired with one outdoor compressor, ideal for conditioning one room or zone. In contrast, a multi split system air conditioner allows multiple indoor units to connect to a single outdoor unit, providing efficient heating and cooling across several rooms while minimizing outdoor equipment and installation space.

Do you offer delivery across Australia?

HVAC Direct offers flexible delivery and pickup options for their full range of split system air conditioners from their Melbourne warehouse. Contractors and homeowners can collect orders in person or choose fast, reliable shipping across Australia.



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