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  • maroondah heating & cooling Blog Air Conditioning or Evaporative Cooling: Which Is Better for the Summer?

Air Conditioning or Evaporative Cooling: Which Is Better for the Summer?

Feb 12th, 2025
Man turning on Air Conditioner

As we swelter through another hot summer, cooling systems play an even more important role in our day-to-day lives than ever. However, not everyone is lucky enough to have a reliable form of cooling at home. The good news is that there are many great options available!

Both options have their strengths, and what works best for you depends on factors like climate, budget, and how you like to cool your space. With that in mind, it’s time to break down the details so you can make an informed choice!

Adapting to Australia’s Warming Climate: Why Cooling Systems  are More Essential than Ever

From bushfires to flooding and temperature records, we’re all witness to an Australian climate that’s becoming more unpredictable than ever before. 

According to figures released by the CSIRO, “8 of the 9 warmest years on record have occurred since 2013.” As a result, all of us are having to adapt to warmer summers and if you find yourself without a reliable cooling system, the heat can really take its toll.

With rising temperatures pushing many households to their limits, a reliable air conditioning system is essential for staying comfortable through the hottest months. Newer models are also far more energy efficient, as well as equipped with power saving modes and Sensor technology that keep electricity costs down. 

Option A: Evaporative Cooling

Evaporative cooling is a popular energy-efficient, eco-friendly option that works by drawing in hot air, passing it through water-saturated pads, and then releasing the cool air into your home. It’s ideal for dry climates and comes in several forms.

As opposed to a ducted reverse cycle cooling system (which recycles and circulates the same air), an evaporative cooling system will instead bring in constant fresh air. 

Ducted Evaporative Coolers

Ducted evaporative coolers are whole-home systems installed on the roof, providing comprehensive cooling through a network of ducts.

Benefits

  • Perfect for large homes or businesses (e.g. Braemar and Coolair offer models suited for large spaces).
  • Uses fresh, filtered air rather than recirculating indoor air.
  • Eco-friendly with minimal impact on the environment.

Things to Consider

  • Requires open doors or windows for airflow, which may compromise security or create drafts.
  • Less effective in humid conditions, as its performance relies on dry heat.
  • Installation costs can range from $4,000 to $8,000 (depending on the complexity of the system and the size of your home).

Interested in ducted evaporative cooling? You’re in great hands with the Maroondah Air team. Our team can install and service ducted systems from all the leading brands. 

Portable Evaporative Units

Portable evaporative coolers are compact, mobile units that can be easily moved around and cool smaller spaces like bedrooms or living rooms.

Benefits

  • No installation is required—just plug it in and go.
  • Low upfront cost (starting at less than $200 for compact models).
  • Great for renters or those who need cooling in specific areas.
  • Ideal for cooling small rooms like bedrooms or offices.

Things to Consider:

  • Limited cooling capacity, so they’re less effective in large spaces.
  • Requires regular water refills, which may be inconvenient for long-term use.
  • Not as effective in extremely hot or humid conditions.

Window wall mounted Evaporative Cooler

Window/Wall-Mounted Evaporative Coolers

These units are installed directly into windows or walls, providing targeted cooling for specific rooms.

Benefits:

  • More powerful than portable units while still compact.
  • Lower running costs compared to split systems, especially when cooling a single room.
  • Great for small homes or apartments with limited space.

Things to Consider:

  • Limited to cooling one area of the home.
  • Requires proper ventilation for efficient operation.
  • Some models lack smart features, like Wi-Fi control or advanced timers.

Up-Ducted Evaporative Coolers

Up-ducted systems feature exhaust vents that push warm air into the attic, ensuring better airflow and reducing heat buildup.

Benefits:

  • Helps maintain airflow and improves energy efficiency.
  • Enhances ventilation and indoor air quality.
  • Can be a more affordable alternative to full ducted systems.

Things to Consider:

  • Requires additional installation steps, particularly in homes without existing ductwork.
  • Up-ducts may require extra maintenance to prevent blockages and ensure proper air circulation.

Option B: Split Systems

A split system air conditioner is the most common choice for residential air conditioning in Australia–and this is no fluke. These systems use refrigerants and compressors to provide precise temperature control, making them highly effective even during extreme heat.

Wall Hung Split Systems

Wall-mounted split systems feature an indoor unit that cools a room while an outdoor condenser handles the refrigerant cycle.

Benefits:

  • Precise temperature control and energy-efficient models available.
  • Whether it’s a Daikin, a Fujisti, a Panasonic, or any other leading model, all split systems provide both heating and cooling capabilities.
  • Inverter technology and power-saving modes that optimise energy consumption, which then leads to savings on electricity bills.
  • Whisper quiet operation and smart device connectivity

Things to Consider:

  • Higher upfront cost compared to portable evaporative cooling.
  • Can become more expensive to run in large homes, depending on the model and usage.

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Multi Split Systems

In this case, multiple indoor units are connected to a single outdoor condenser, which provides independent temperature control for each room.

Benefits:

  • Ideal for homes with multiple rooms that need different temperature settings.
  • Inverter technology provides superior energy efficiency.
  • No need for multiple outdoor units, saving on space and reducing visual clutter.

Things to Consider:

  • More complex installation, which may increase the cost.
  • Higher upfront costs than a single split system, typically between $3,500 and $7,000 depending on the number of units and brand.
  • If the outdoor unit fails, all indoor units will be affected.

Option C: Reverse Cycle Ducted

Reverse cycle ducted air conditioning is a comprehensive solution that offers both cooling and heating through a network of ducts. Unlike ducted gas, these systems run solely off electricity. 

Benefits:

  • Provides both heating and cooling, making it suitable for all seasons.
  • Delivers even air distribution for consistent comfort throughout the home.
  • Some models, such as those from ActronAir and Daikin, feature energy-efficient inverter technology that can reduce running costs.
  • Aesthetic appeal, as there are no bulky wall-mounted units.
  • Ability to control the indoor temperature across larger properties

Things to Consider:

  • Installation costs vary drastically depending on the size and scope of the installation project. Overall costs can range from between $2,000 to $30,000 (Source: HiPages)
  • Best suited for new homes or major renovations that require ductwork.
  • Regular servicing is needed to maintain ducts and ensure system efficiency.

Evaporative Cooling vs Air Conditioning: Other Key Comparisons

Finding the perfect option often requires you to consider a wide variety of different aspects. Here are some of the most common areas to compare:

Ongoing Maintenance

Evaporative cooling requires frequent maintenance to clean cooling pads, check water pumps, and clean filters to maintain cleaner air. In contrast, split systems generally require less frequent servicing, with only occasional filter cleaning and refrigerant checks. 

However, any form of ducted system (whether reverse cycle or evaporative) will typically require more attention.

Efficiency

Running off water and fan power, evaporative cooling is typically the most energy-efficient option in dry climates. However, split systems and reverse cycle ducted systems are more effective in extreme temperatures, still offering precise control over indoor climate in the depths of winter and the height of summer.

If energy efficiency is high on your list, it’s always important to check the star rating of each system. You can learn more about how to read this label here

Installation Costs

Evaporative cooling is more affordable to install, with systems like portable and window-mounted coolers available for less than $200 and ducted systems ranging from $4,000 to $8,000. Split systems, on the other hand, have an upfront cost between $1,000 and $7,000, with reverse cycle ducted systems being the most expensive at $8,000 to $15,000.

Please note that all of these figures can change depending on the size of your property, the brand, and the scope of features included (such as smart technology). Always check with your service provider and get a quote to receive a detailed estimate.

Contact Us Today
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Expert heating and cooling services tailored to your home and budget. Contact us today.

Coverage

Evaporative cooling is generally best for dry climates, as well as summer because it does not offer heating capabilities. Split systems and reverse cycle ducted systems provide both cooling and heating, with some multi-split systems and ducted systems even offering zoning features for personalised temperature control across each room. 

The decision here really depends on whether you’re after a solution for the summer time, or need a system that offers heating and cooling all year round. 

Performance

Evaporative cooling is known for working well in dry heat but also has the potential drawback of being less effective in humid conditions. Split systems and reverse cycle ducted systems deliver consistent performance in all climates and provide precise temperature control, making them better suited for areas with high humidity.

Another thing to note is the noise emitted by each. While some portable evaporative coolers are noticeably noisy, many newer split systems come with whisper quiet operation, especially when power saving modes are activated.

The Verdict

Your decision ultimately comes down to climate, budget, and how you plan to use your cooling system. Evaporative cooling is ideal for relief during summer and offers a low-cost, eco-friendly option, but it may not be the best choice in humid conditions. 

For reliable, year-round cooling and heating, split systems and reverse cycle ducted systems generally provide better performance and flexibility, albeit at a higher upfront cost. Finally, if you prefer a more discreet look, there are ducted systems available in both styles.

Get a Quote for Heating and Cooling Installation in Melbourne 

From evaporative cooling to split systems and ducted reverse cycle air conditioning, Maroondah Air are the go-to specialists for heating and cooling in Melbourne. We’ve been in business for more than 25 years and take great pride in operating with honesty and integrity.

Whichever system you’re after, our qualified team is here to keep you cool all summer long. Our service comes with free in-home quotes, compliance certificates and no deposit interest free payment options. 

Call 03 9738 2000 and chat with an expert today!

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