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When it comes to cooling and heating our homes, we often hear the terms HVAC and AC used interchangeably. While both of these systems work towards the same goal of cooling and heating our homes, there are some significant differences between them.

What is an AC System?

An air conditioning (AC) system is designed to cool the air in a room. This important system works by removing heat from the indoor air and expelling it outside. AC systems typically consist of an outdoor unit that contains a compressor and a condenser coil and an indoor unit that contains an evaporator coil and a blower. The refrigerant circulates between the indoor and outdoor units, absorbing heat from the indoor air and transferring it outside. The cooled air is then blown back into the room through the indoor unit’s blower.

AC systems are typically installed in homes that only require cooling. They are relatively simple systems and are less expensive to install than HVAC systems. Although there is no air conditioning replacement, some areas of the world are cold enough that they don’t need cool air in their home. For most Americans, they experience enough seasonal variations to need an AC unit.

If you own a home and already have an AC unit and are looking for Air conditioning installation or air conditioning repair, look no further than the experts at All Star Service & Repair. We can get you started with a free inspection and discounts on a new AC system. Click here to book an estimate.

What is an HVAC System?

An HVAC system, on the other hand, is a more complex system that includes both heating and cooling components. HVAC stands for heating, ventilation, and air conditioning. These systems are designed to control the temperature, humidity, and air quality in a room.

An HVAC system consists of a furnace or boiler that provides heat, an air conditioner that provides cooling, and a duct system that distributes the conditioned air throughout the home. The duct system also filters the air and removes impurities, improving indoor air quality.

HVAC systems are typically more expensive to install than AC systems due to their added components and complexity. However, they offer more comprehensive climate control options and can be more cost-effective in the long run, especially in areas with extreme temperature fluctuations.

Key Differences

While both AC and HVAC systems provide temperature control, the key differences between them lie in their capabilities and complexity. AC systems are designed solely for cooling, while HVAC systems offer both heating and cooling options. HVAC systems also provide improved air quality and humidity control, making them ideal for those with allergies or respiratory issues.

In terms of installation cost, AC systems are generally less expensive than HVAC systems. However, HVAC systems are more cost-effective in the long run, especially in areas with extreme temperatures. For more information about the preventative care of your AC system, check out this blog post.


When it comes to choosing between an AC and HVAC system, it is essential to consider your needs and budget. If you only require cooling, an AC system may be the most cost-effective option. However, if you need both heating and cooling, an HVAC system is the way to go. Ultimately, the decision will depend on your specific needs and the climate in which you live.

If you’re unsure which system you need or want to compare prices and estimates, give us a call or request a service from our website. With over 60 years of experience, our highly trained, licensed, and insured technicians will diagnose your problem, explain every facet of the repair and follow through. Our services are backed by our 100% service guarantee and a ten year warranty.