What is the difference between air conditioning and ventilation?

 For many, summertime means camping, gardening, and fun days at the pool.

Unfortunately, this time of year can also bring insufferable heat that forces us to crank up the air conditioner and stay indoors.

While being inside is not exactly ideal, learning more about the differences between air conditioning and a whole house fan with air ventilation can allow you to create the cleanest and most comfortable living space for you and your loved ones during otherwise muggy days.

In this article we will go beyond the simple facts that air conditioners spit out cool air and ventilation systems pull fresh air into a home. We’ll address questions like: what exactly are the differences between ventilation vs ac systems? Are our air conditioners making us sick? Can an air conditioning system provide clean air? And can a ventilation system be used to cool the air?

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When we think about ‘air conditioning’ we usually think about systems that remove heat to cool the ambient air. We often have air conditioners in our homes, public buildings, and cars not only to make a space more comfortable, but safer from the dangerous heat.

It’s probably not surprising that an AC unit is one of the best ways to cool off and prevent heat-related illness.

But in reality air conditioning systems provide a living space with a lot more than just a comfortable temperature. Air conditioners work much like refrigeration systems, by not only cooling a space, but simultaneously improving its humidity level and air quality. 

How does an air conditioner work?

Air conditioning systems have two main parts: a condensing unit and an evaporator.

The condensing unit is usually located outside the building and contains fans, condensing coils, a compressor, and refrigerant.

The evaporator is often located inside a home. This unit contains evaporator coils, a circuit board, filters, and fans to draw in warm air and disperse cool air throughout a space.

The process starts when the temperature in a room rises above a certain point. The circuit board is triggered and activates fans inside and outside the house. Warm, humid air is taken in by the condensing unit. The compressor sends refrigerant between the condensing coils (outside the house) to the evaporator coils (inside the house).

While this is happening the warm air inside the house is taken in by the evaporator and blown across the evaporator coils that contains refrigerant. Heat and moisture are removed during this process and cold air is returned to the living space. This process continues until the thermostat finds that the room is at a desirable temperature.

What is the cost of air conditioning?

Costs of installing and operating central air conditioning can vary significantly depending on the size of the home and the difficulty of installing additional components such as ductwork.

The typical range of central air installation is usually between $3,700 and $7,250 according to homeadvisor.com.

What are the benefits of air conditioning?

An efficient air conditioning system will function and cool homes and remove moisture regardless of the outside temperature. This is especially important in extremely hot and humid areas where indoor air conditioning is the only solution to escaping these outside conditions.

Humidity control is another benefit that air conditioning systems have on the overall air quality in a building. Harmful microbes like mold do not handle the cooler and drier environments that humans thrive in.