Whether you prefer the fresh, open-door airflow of natural evaporative cooling or the total year-round climate control of reverse cycle heating and cooling, Hearth House South West has the ideal solution for your home. Our local team designs, supplies, and installs leading cooling systems tailored specifically for South West coastal conditions and lifestyle needs.

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Heating and cooling to create the perfect climate at your place, year-round.

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Evaporative Cooling

Explore our natural evaporative options for cooling your home

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Airconditioning

Evaporative Air Conditioning for Bunbury, Busselton & the South West

Stay cool the natural way with evaporative air conditioning

If you love the idea of fresh, moving air through your home instead of sealed-up, recirculated air, evaporative air conditioning is hard to beat. Using water and clever airflow rather than heavy refrigerant, it’s an energy-efficient way to keep your place comfortable through the South West’s hot, dry days.

At Hearth House Bunbury and Busselton, our team designs and installs whole-of-home evaporative systems from leading brands like Breezair and Braemar, matched to your floor plan, roof space and local conditions

Why Evaporative Cooling Works So Well in South West WA

Our Mediterranean climate brings hot, dry summer spells across Bunbury, Busselton, Dunsborough, and Margaret River. Evaporative cooling thrives in these conditions by pulling outside air through moist Chillcel filter pads, dropping the temperature naturally, and pushing chilled air into every room.

Because evaporative systems require doors or windows to be left slightly open, you get continuous air exchange. Stale indoor air, cooking smells, and allergens are constantly flushed out, giving your family 100% fresh, cool air all summer long.

Frequently Asked Questions About Evaporative Cooling

How does evaporative air conditioning work?
Evaporative air conditioning works by drawing warm outdoor air through water-saturated Chillcel filter pads mounted in a rooftop unit. As the air passes through the wet pads, water evaporates, naturally lowering the air temperature. A quiet fan then circulates this 100% fresh, cooled air throughout your home while pushing warm, stale air out through open doors or windows.

Why is evaporative cooling ideal for dry summer climates?
Evaporative cooling performs best in dry heat, making it perfect for South West WA summers. Unlike refrigerated systems that recirculate the same dry indoor air, evaporative units continuously introduce fresh, naturally humidified air that keeps living spaces comfortable without drying out your eyes or skin.

Should I leave windows and doors open?
Yes. Evaporative cooling requires relief airflow to operate efficiently. Keeping select doors and windows slightly open creates a natural breeze path through your home, allowing the system to push out hot indoor air, dust, and cooking odors while drawing chilled air into your rooms.

How much electricity does evaporative cooling use compared to reverse cycle?
Evaporative air conditioning uses up to 80% less electricity than standard ducted reverse cycle cooling. Because it relies primarily on a water pump and a fan rather than a heavy compressor, running an evaporative system for a full summer day costs only a fraction of traditional air conditioning.

Will coastal salt air near Geographe Bay damage an evaporative roof unit?
No. Premium units from brands like Breezair and Coolair feature heavy-duty, UV-stabilised Permatuf polymer cabinets. These outer casings are 100% rust-proof and corrosion-resistant, ensuring long-term durability against intense sun exposure and salty ocean winds in Busselton, Dunsborough, and coastal Bunbury.

How often do evaporative cooling pads need cleaning or replacing?
We recommend having your system serviced annually before the hot weather hits. During a routine service, filter pads are thoroughly cleaned and descaled. Depending on local water quality and overall usage, cooling pads typically last between 3 and 5 years before requiring replacement.

Indoor Living

Airconditioning

Evaporative Cooling

Airconditioning

Evaporative Air Conditioning for Bunbury, Busselton & the South West

Why Evaporative Cooling Works So Well in South West WA

Frequently Asked Questions About Evaporative Cooling

Coolair CPQ Series

Breezair Supercool Series

Braemar SuperStealth Series

Braemar Evolution Series

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