Air Conditioning
Efficient reverse-cycle split, multi-split and ducted systems.
Mitsubishi Heavy Industries
Residential
Reverse-Cycle Air Conditioning, Installed Right
One efficient system for summer cooling and winter warmth, sized to your rooms and installed by licensed technicians. It runs beautifully on your solar*.
01
Year-Round Comfort, Lower Bills
Reverse-cycle is the most efficient way to heat and cool an Australian home. It moves heat rather than making it, so one system does both jobs for a fraction of the power of a bar heater or a gas heater*.
The part most buyers miss is size. An undersized unit runs flat out and never gets the room comfortable. An oversized one switches on and off constantly, wastes power and leaves the room clammy. We size each room from its floor area, ceiling height, windows, insulation and aspect.
02
Split, Multi-Split and Ducted
If you are weighing ducted against several splits, the honest answer depends on how often you use each room. A home with people in every room all day suits ducted. A home that lives in two or three rooms usually does better with splits.
| System | Best for | Worth knowing |
|---|---|---|
| Split system | One room or an open-plan space | Quickest to install, simplest to service |
| Multi-split | Several rooms from one outdoor unit | Fewer outdoor units, but all rooms share one compressor |
| Ducted | Whole-home comfort with zones | Whole-home comfort, quiet and tidy, needs roof or floor space for ducts |
03
Sizing Your System
As a rule of thumb only, a bedroom of 15 to 20 square metres often needs around 2.5kW of cooling, and a large open-plan living area often needs 5kW or more. Ceiling height, west-facing glass, and poor insulation all push the number up.
We calculate it properly at the assessment. Send the floor plan or take photos of each room and we will do the rest.
04
Running It on Your Solar
Cooling demand peaks on hot afternoons, which is exactly when your panels produce the most. A solar system sized with an air conditioner in mind covers a large share of that load. A battery can carry it into the evening.
See how it fits together on our solar and battery storage page, or look at the 10kW solar and battery package, which suits homes with ducted cooling.
Equipment
Efficient Brands We Fit
Reverse-cycle systems from manufacturers with Australian service networks, sized and installed by our own licensed team.
Mitsubishi Heavy IndustriesBrand availability depends on your system design and location. We confirm the selected equipment and manufacturer warranty in your written quote.
05
Licensed, Safe and Compliant
Installing an air conditioner involves refrigerant and electrical work. Installers must hold a refrigerant handling licence, which you can confirm through the Australian Refrigeration Council, and the electrical work must be done by a licensed electrician. Older switchboards sometimes need an upgrade first, which we cover on our electrical and switchboard upgrades page.
NSW households may also be able to use the state's Home Energy Saver program, which lists reverse-cycle air conditioning among eligible upgrades. Check your eligibility before you book. Our rebates and incentives guide explains where these programs fit.
06
What Shapes Your Quote
| Factor | Why it matters |
|---|---|
| System type | Ducted covers the whole home, a single split covers one room |
| Capacity | Larger rooms need larger units |
| Number of indoor units | Multi-split adds an indoor unit for each room |
| Pipe and cable runs | Longer runs add labour and materials |
| Electrical work | Older boards may need an upgrade |
ARCtick Certified
Certified to Handle Refrigerant
Installing an air conditioner involves refrigerant, and that work needs a licence. Frostac is ARCtick certified (authorisation AU47746, refrigerant handling licence L139196), so the refrigerant on your job is handled by licensed hands.
- Authorisation numberAU47746
- Refrigerant handling licenceL139196
Important Information
* Savings, efficiency, performance and timeframe claims are indicative and depend on your home, usage, tariff, products and installation. Free assessments and offers are subject to eligibility and service area. Your written quote prevails. See clauses 24.1, 24.3, 24.4 and 24.7 of the Terms and Conditions.
Questions
Common Questions
01Ducted or Split: Which Should I Choose?
Choose ducted if you want whole-home comfort with zoning and a tidy look, and your roof or floor allows ducts. Choose splits if you use only a few rooms, want to cool only a few spaces or are adding cooling to one space.
02What Size Air Conditioner Does My Room Need?
It depends on floor area, ceiling height, windows, insulation and sun exposure. A rule of thumb is around 2.5kW for a bedroom and 5kW or more for a large living area, but we calculate it on site.
03How Does It Run on Solar?
If the air conditioner runs while your panels are producing, much of its power comes from the roof at no extra cost per unit. Whatever your panels do not cover comes from the grid or a battery.
04How Long Does Installation Take?
A single split system is usually a half to full day. Ducted systems take longer.