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    How to Stay Cool for the Summer



February 2018


There are plenty of home cooling options available. Let’s take a look at these systems so you can learn how to stay cool in summer.

Most homes use around 40% of their total energy on cooling and heating, but we will be looking at the cooling systems. Each household’s total energy consumption will depend on different factors, such as climate and use. It also depends on what type of home cooling system you have.

The majority of homes will need to use a cooling system during the year, particularly to stay cool for the summer. But many of these cooling systems carry a heavy cost. By finding how to cool down a room while minimising energy consumption, you can reduce the amount of greenhouse gases you emit and move towards a more energy-efficient home.

It is also important to focus on how you use and maintain your cooling system. Ensure that your home is as energy-efficient as it can be by looking at the options below.

3 main types of energy-efficient cooling systems

Evaporative coolers

By blowing air over water on a sponge or filter, evaporative coolers cool the sponge and the air. This is a very efficient choice, allowing you to save up to 75% of your cooling cost. These coolers are cheap to install and run, and they use far less energy than air conditioners.

Benefits
  • Cheap and easy to install
  • Saves a lot on your energy cost
Disadvantages
  • Needs to be the right size to be effective

Room Air Conditioners

Room air conditioners can be mounted through a wall or window with the compressor kept on the outside. Room air conditioners are small in size, and most are made to cool one room only. If you would like to cool multiple rooms in your house, you will have to buy one for each. Room air conditioning units cost less than central air conditioning systems.

Benefits
  • Only cool rooms that you use
  • Cheaper than central air conditioners
Disadvantages
  • Need to get an air conditioner for each room

Central Air Conditioners

Central air conditioning systems are made to cool your entire house. For each system, there is a big compressor unit outside the house which drives the cooling process. An indoor coil that is filled with refrigerant cools the air and distributes it around the house using the ducts.

Benefits
  • Whole house stays cold
  • Has a good energy efficiency ratio
Disadvantages
  • Most expensive option compared to evaporative cooling or room air-conditioners

What to consider when looking at type and size

The type and size of home cooling system best suited for your room or home is based largely on various factors, such as:

  • climate
  • room or house size
  • ceiling height
  • insulation
  • area and placement of windows

What is the most energy efficient home cooling system?

Before you consider which cooling system to use, think about other ways to aid in the cooling process. A blend of good insulation, energy-efficient windows and doors, shading, daylighting, and proper ventilation should help keep your home cool with minimal energy use.

Once you have considered these points, look at how big the space is, what the running costs are, and whether you need cold air or a cooling breeze.

The most energy-efficient home cooling system is an evaporative cooler which, if installed with the correct size, can cut your cooling costs down by up to 75%.

With that being said, using an inverter with an air conditioner can reduce your energy use by up to 30% by adjusting your air supply as your need for cool air changes.

Other cooling systems to consider

Fans: By placing a fan in the correct position, you should be able to obtain comfortable cooling levels.

Radiant Cooling: this system cools the ceilings and floors by absorbing the heat in a room.

The final word

By reducing the amount of heat generated and stored in your home, and pairing it with an appropriate energy-efficient cooling system, you can save money for years to come.


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