If you are looking to buy a new air conditioner for your home, it is crucial to tap an expert to install it. Your air conditioning unit may look very simple on the outside, but it is far more complex than you probably know. With so many parts working together, any minor mistake in your aircon installation can severely damage your unit!

Let’s take a look at the most common air con installation mistakes you should avoid for uninterrupted cooling:

Wrong size of AC unit

Did you know that installing an improperly sized aircon unit could have adverse effects? Not only can it lead to high operational costs, but it can also result in improper humidity control and uncomfortable changes in temperature. If your system is too small for your room, you will not be able to get sufficient cooling and may even have to pay for high energy bills! Before installing your aircon, make sure to consult a trusted aircon contractor like this air conditioning installation in Brisbane who can determine the cooling capacity that’s just right for your home.

Wrong aircon positioning

When we talk about installation, the position of your aircon is just as important as its size. If you are installing your aircon unit yourself, make sure that you do not place it in a location where there is too much heat, unless you want your unit to struggle cooling your home. It also helps to tilt your unit backwards to make room for proper drainage.

Wrong insulation

Are you installing a window type air conditioner in your home? Then make sure that the open areas between your top and bottom windowpanes have insulating foam for better insulation. But if you’re installing a split type aircon, your concern should be the ducts, whose size should depend on load circulation. Insulation may not seem important when it comes to aircon installation, but any mistake in it can result in reduced efficiency of your cooling system.

Wrong thermostat positioning

We cannot stress enough the importance of choosing the right position for your thermostat. If you place your thermostat near the lamps or any heat-generating appliance, your air conditioning unit will have a hard time cooling your home due to overexposure to heat. You know what happens after that—improper cooling, unhealthy levels of humidity, and high maintenance costs! Improper positioning of your thermostat is so bad it could even reduce the lifespan of your unit!

Poor quality of air indoors

You probably didn’t know that the quality of air inside your home can also affect the efficiency of your air conditioner. If that doesn’t sound surprising, how about this: Air pollution inside your home can get even worse if it does not get enough air circulation and is exposed to high humidity. There are many things in your home that may lead to indoor air pollution and badly affect the efficiency of your unit—resins, carpets, molds, and pollen. If you don’t want your air conditioner to bid you goodbye too soon, make sure the air inside your home is clean.


While there are many things that can negatively impact your aircon installation, the cooling comfort that it provides when it is installed properly is something you will never trade for anything else. So for uninterrupted cooling comfort, make sure that you don’t commit any of the abovementioned mistakes when it comes to aircon installation. Better yet, hire an HVAC expert to do the job for you.