Blog Post

Optimising Your Air Conditioner's Efficiency

Dual Functionality, Singular Comfort: Optimising Your Air Conditioner's Efficiency

Sometimes, the perfect summer getaway isn't outdoors. Amidst the scorching heat, a perfect cooled house would be the ideal choice! As temperatures soar, our reliance on air conditioners becomes more pronounced, transforming them from mere appliances to indispensable companions in our quest for comfort. Yet, amidst the blissful coolness, they provide lies a crucial factor often overlooked: efficiency.

Did you know that the efficiency of your air conditioner can significantly affect not just your comfort but also your bank balance and the environment? Let's delve into the importance of air conditioning efficiency, from choosing the suitable unit to adopting maintenance routines and lifestyle changes.

The Reverse-Cycle Split-System Airconditioner

A reverse-cycle split-system air conditioner is commonly used for cooling and heating indoor spaces. It consists of two main components: an indoor unit and an outdoor unit.

Here's how it works:

  • Indoor Unit: This system part is typically installed inside the room or area to be cooled or heated. It contains the evaporator coil, which absorbs heat from the indoor air during cooling mode and releases heat during heating mode.
  • Outdoor Unit: Positioned outside the building or house, the outdoor unit contains the compressor, condenser coil, and fan. It transfers heat from the indoor air to the outdoor air during cooling mode and vice versa during heating mode.

During the cooling mode, the refrigerant absorbs heat from the indoor air at the indoor evaporator coil. This heat is then carried outside to the outdoor unit and released into the outdoor air. Now cooled refrigerant returns to the indoor unit to repeat the process.

During the heating mode, the cycle is reversed. The outdoor unit absorbs heat from the outdoor air and transfers it to the indoor unit, where it is released to heat the indoor space.

The reverse-cycle split-system air conditioner provides cooling and heating functions, making it a versatile option for maintaining indoor comfort throughout the year. Additionally, it is often more energy-efficient than traditional heating methods such as electric resistance heaters.

The energy efficiency of reverse-cycle air conditioners on the Australian market ranges between 300% to 600% efficient. Air conditioners can achieve such high rates of energy efficiency because they do not use electrical power to generate heating or cooling, but rather they use it to transfer heat.
Energy.gov.au

How to Efficiently Use Your Air Conditioner

How you select and operate your unit significantly impacts its efficiency. Naturally, you're not just seeking optimal heating or cooling capability; you're likely also considering budget constraints. Balancing performance and affordability is crucial in maximizing efficiency and ensuring comfort without breaking the bank.

Consider the following:

  • Proper Sizing: Ensure the unit is appropriately sized for the space intended to cool or heat. An undersized unit will struggle to reach desired temperatures efficiently, while an oversized unit may short-cycle, leading to energy waste and reduced comfort.
  • Regular Maintenance: Schedule routine maintenance checks at least once a year, preferably before each cooling and heating season starts. This includes cleaning or replacing air filters, inspecting and cleaning coils, checking refrigerant levels, and ensuring proper airflow.
  • Temperature Settings: Set the thermostat to optimal temperatures for comfort and energy savings. Aim for around 25ºC during cooling seasons when at home and slightly higher when away. Aim for around 20ºC during heating seasons when at home and lower when away.
  • Zone Control: If your split-system air conditioner allows for zoning, use this feature to cool or heat specific areas of your home independently. Directing conditioned air only to occupied areas can help optimize comfort and energy usage.
  • Professional Servicing: Schedule regular professional servicing by a qualified HVAC technician to inspect and tune up your reverse-cycle split-system air conditioner. Professional maintenance helps identify and address issues early, ensuring efficient operation and extending the lifespan of your unit.

Implementing these strategies can help you optimize your reverse-cycle split-system air conditioner for maximum comfort, energy efficiency, and performance throughout the year.

The Importance of Efficient Temperature Regulation

Regulating the temperature in your house with air conditioning is essential for several reasons:

  • Comfort: Maintaining a comfortable temperature indoors enhances overall well-being and productivity. Extreme heat or cold can be uncomfortable and harmful, leading to discomfort, dehydration, heatstroke, or hypothermia.
  • Health: Proper temperature regulation can help prevent health issues associated with extreme temperatures. For example, air conditioning can reduce the risk of heat-related illnesses such as heat exhaustion and heatstroke during hot weather. In colder climates, heating can prevent conditions like frostbite and hypothermia.
  • Humidity Control: Air conditioners can also regulate humidity levels, crucial for comfort and health. Excess humidity can lead to mold growth, triggering allergies and respiratory problems. On the other hand, low humidity levels can cause dry skin, irritated respiratory passages, and static electricity buildup.
  • Protecting Property: Extreme temperatures can damage property and belongings. High heat and humidity can warp wooden furniture, cause electronics to malfunction, and promote mold growth. Extremely cold temperatures can lead to frozen pipes, which can burst and cause water damage.
  • Improved Air Quality: Air conditioning systems often include air filters that help remove dust, pollen, mold spores, and other airborne particles from indoor air. This can improve indoor air quality and reduce respiratory issues for occupants, particularly those with allergies or asthma.
  • Sleep Quality: Maintaining a comfortable temperature in the bedroom is essential for quality sleep. Cooler temperatures are generally more conducive to sleep, as they help the body reach an optimal sleeping temperature. Air conditioning can help create a comfortable sleep environment, promoting restful sleep and overall well-being.

Many people think they can save money and energy by just blasting the air conditioning at a very low temperature, such as 17°C, for a short period of time to chill the room – before switching it off and enjoying the chilled air until another blast is needed later on. But it requires a lot of energy to get a room to a very chilly temperature.
CSIRO

Remember, the efficiency of your air conditioning system isn't just about staying cool in the summer or warm in the winter - it's about creating a comfortable living environment that enhances your quality of life while being mindful of your budget and the planet.