A split system heats and cools one room, or a few rooms, using far less energy than most other heaters. It’s often the most affordable way to keep the rooms you actually use comfortable.
A common sign
“We only really use the living room and bedrooms. Why heat the whole house?”
About split system air conditioning
A split system has an indoor unit on the wall and an outdoor unit outside. In winter it pulls warmth from the outside air and brings it in. In summer it does the reverse. That’s why it’s also called reverse cycle air conditioning.
You can have one indoor unit for one room, or several connected to one outdoor unit. Getting the size right matters: too small and it struggles, too big and it wastes energy turning on and off.
Cold living areas and bedrooms in winter
Hot rooms in summer
Replacing old gas or electric heaters
Ask the installer to size the unit for the room, not just the floor area. Ceiling height, windows and insulation all change what you need.
Not sure where to start?
Don’t waste money on upgrades you don’t need. A professional home energy assessment shows where your house loses heat and power, so your budget goes where it makes the biggest difference.
Find an assessor near meSplit system air conditioning installers
A few of the 1863 listed across Australia
5.0 162 Google reviews
Serves Werribee and Wyndham Vale and nearby suburbs | Based in Werribee
4.8 293 Google reviews
Serves Truganina and surrounding suburbs | Based in Truganina
4.9 75 Google reviews
Serves all of VIC | Based in Ravenhall
5.0 128 Google reviews
Serves Altona North and surrounding suburbs | Based in Altona North
5.0 51 Google reviews
Serves North Geelong and surrounding suburbs | Based in North Geelong
More in gas to electric
Replace the gas appliances one by one, hot water, heating, cooking, and stop paying two connection fees to keep the house running.
A heat pump uses a fraction of the electricity of an old electric tank, and it is the usual first swap when a gas system fails.
Heats the water in your radiators or heated slab with an electric heat pump instead of a gas boiler. The pipes and radiators can often stay, though not always, so ask.
Roof collectors with a boosted tank. A different product from a heat pump, and still the cheaper option on some rooftops.
Warms the pool with an electric heat pump or solar collectors on the roof instead of gas. Pairs well with rooftop solar, and a pool cover keeps the heat in.
Replaces an old single speed pump with a variable speed one that runs slower for longer, so keeping the water clean takes less power.
Faster than gas, and it takes the last flame out of the kitchen. Usually needs its own circuit run from the switchboard.
Ducted through the whole house. The vents from a ducted gas furnace can often be reused, though not always, so ask before you count on it.
A filter clean and a gas check keeps a system running at the efficiency it was sold at. Cheap next to replacing it early.
An older board often cannot take an induction cooktop, a heat pump and a charger at once. This is the job that unblocks the rest.
The last step. Once every gas appliance is gone, removing the meter is what actually ends the daily supply charge.
Before you choose an installer
Related goal
Insulation and draught sealing help any system do its job. See the upgrades that keep a home comfortable in every season.