Stay warm or keep cool—it’s up to you
Forced air heating systems and central air conditioning both use your home's ductwork, but forced air heats your home while central air cools it.
Expect to pay $4,800 for furnace installation or $6,000 for central AC installation, and adding ductwork costs around $3,500 if your home doesn't have it.
Your choice between the systems depends on your climate needs, existing ductwork, available outdoor space, and whether you need heating, cooling, or both for year-round comfort.
Hiring a local air conditioner installing professional keeps installation smooth and ensures your ductwork, thermostat setup, and system connections work together properly for reliable heating or cooling.
You might have heard the terms “forced air” and “central air” used interchangeably, but they aren’t quite the same. To put it simply, forced air relates to your home’s heating system, and central air refers to its cooling system—but there are other differences, too. Below, we’ll break down the basics of forced air versus central air so that you can decide if one or both are right for your home.
When someone mentions “forced air,” they’re talking about a home’s heating system where a fuel source heats air (for example, in a furnace) and circulates it through ducts. On the other hand, central air refers to the home’s air conditioning system, which uses the same ductwork to distribute cool air around the house.
Something else to note: While the term “forced air” is associated with heating, its true definition is actually a bit broader than that. In reality, a forced-air system is any HVAC system that sends temperature-regulated air—cool or warm—through a system of vents and ducts. In other words, furnaces, heat pumps, and central air conditioners are all types of forced-air systems. With that said, in this guide, we’ll stick to the more commonly accepted meaning to avoid confusion.
In a forced-air heating system, a furnace or heat pump draws in air, heats it up, and sends the warmed air through ducts to make your home feel nice and toasty. They run on natural gas or electricity, but some types of furnaces run on wood, propane, or oil. If you have a forced-air system, you’ll use a thermostat to turn it on and off and control the temperature.
| Pros | Cons |
|---|---|
| Relatively efficient and affordable | Hard to install without existing ductwork |
| Easy to install if you have ductwork | Needs regular maintenance |
| Heats your home quickly | Heating may be inconsistent |
Best for:
Folks in cold climates who need an efficient heating system
People who already have ductwork and don’t want to break the bank adding heating
Anyone who wants a reliable, easy-to-use heating system
Forced-air systems—especially ones with heat pumps—are more efficient than some other types of heating systems (such as baseboard heating). They’re also relatively affordable to install if you already have ductwork in your home.
Once a forced-air system is up and running, it’s easy to operate—as long as you’re comfortable using a thermostat. Plus, after you turn the heating on, it won’t take long to start feeling it warm up your home.
Don’t have ductwork? Your local air conditioner installer will have to add it before adding forced-air heating to your home, which can increase your project price by thousands of dollars. If you live in an older home, there might not be space for ductwork at all, which would rule out forced air as a heating option for your home.
On top of that, heat pumps and furnaces require regular maintenance to work effectively. If you have a fuel-burning forced-air system, you’ll need to make sure it’s vented properly so that carbon monoxide doesn’t linger in your home.
Finally, depending on the layout of your home and the condition of your ductwork, you might experience uneven or inconsistent heating with a forced-air system.
Central air conditioning is a type of cooling system for your home. There are two kinds of central ACs: split systems, which are more common, and packaged systems. Split systems have an indoor and outdoor unit that work together to pull in hot air from your home, send it to the outdoor unit to cool it, and then redistribute it throughout your house via ductwork.
| Pros | Cons |
|---|---|
| Easy to use | Pricey ductwork installation |
| Quieter than other types of AC | More expensive than other cooling systems |
| Doesn’t take up space in your home | Requires outdoor space |
Best for:
People who want to cool their entire home easily
Folks who already have ductwork and want to upgrade from window or portable ACs
Anyone who wants a hidden cooling system that blends into their home
With central air, you can cool your whole house just by pressing a button on your thermostat. It’s much easier than dragging a bulky portable air conditioner around your home to cool individual rooms.
Another perk of central air conditioning? It’s more discreet and takes up less space inside your home than a window or portable AC unit. Plus, once it’s running, central AC is quieter than many other types of air conditioners and forced-air systems.
Without existing ductwork, adding central air conditioning to your home is complicated and pricey. On average, installing new ductwork costs $3,500.
As you might expect, cooling your entire home with central air conditioning can result in higher energy bills than using a smaller unit in just one room. To lower these costs, you can use the settings on your AC to automatically turn on and off depending on the temperature in your home.
Additionally, the outdoor unit on a central air conditioning system is bulky and requires space in your yard. If you don’t have much room outside, then central air won’t be the best cooling option for your home.
Since there’s some overlap between forced air and central air, it can be difficult to compare the two systems. However, let’s look at how they match up in a few key categories.
Both systems use the same hidden ductwork, which hides in the walls of your home. However, the outdoor units on central AC systems are often bulky and take up a good amount of space outside. Furnaces on forced-air systems are tucked away in a utility closet, basement, or attic. For that reason, forced-air systems are slightly more aesthetically appealing.
The life span of your HVAC system depends on its components, so it’s a bit of an apples and oranges situation in this category. Heat pumps last 10 to 15 years, while furnaces last 15 to 30 years (however, gas furnaces only last up to 20 years). On the other hand, air conditioning units last between 15 and 20 years. HVAC ductwork lasts 10 to 15 years.
Not considering ductwork, a forced-air system is slightly more affordable than central air conditioning, with a new furnace costing around $4,800 to install. On average, the price of installing a new central AC unit is $6,000. (Heat pumps cost more than both of them at $6,100 to install.)
Both systems have similar maintenance requirements, like having a pro come out for annual HVAC servicing and replacing or cleaning your filters. However, forced-air heating systems are more complicated overall since they also require proper ventilation and more in-depth cleaning, especially if you have a wood-burning system. You may even have to hire a pro to install carbon monoxide sensors.
Great company! Price was competitive, technician showed up on time and completed the job (exterior electric Radon fan replacement) quickly. Would hire them again.
MaGen Property Inspections and Radon MitigationAs usual with ECO, tech Jordan was outstanding, very professional, very knowledgeable, and very thorough with repairs made to tankless water heaters. Very highly recommend ECO!!!
Eco Plumbers, Electricians, and HVAC TechniciansRaven and crew does absolutely fantastic job. They are very professional if any concerns were to occur with any of her work she always took responsibility and finished out with a great job. I have worked with her business for a year and have always been satisfied. Very trusted business and...
Creations of Transformation LLCI would recommend this company to anyone! He showed up on time, was friendly, completed a very difficult repair on our dryer vent cover, was responsive, and pricing was extremely fair and competitive. I would have him back to do any of our repairs or cleanings without hesitation!
U.S.A. Dryer Vent, LLCAce Fireplace Services' chimney sweep service is truly exceptional. They used advanced technology to ensure a thorough cleaning process, and my chimney has never looked better. I highly recommend their services.
Ace Fireplace ServicesThe technician was very professional and friendly. He answered all my questions and was very thorough. He left the fireplace area very clean . He inspected from the roof and advised me as to other work that might need to be done. There was no pressure there. I was very satisfied with the...
Supreme brick & chimneyExcellent experience with hiring Tether House to Mount our 77’ Samsung TV in our bedroom. Fast, friendly, and knowledgeable. Highly recommend.
Tether HouseOn time, clean and finished fast. Windows seem sturdy and the finish is good. Caulking was done with no smudges. Would recommend.
Window Depot USA of Central OhioGreat job...edging and pre clean up went well with a great job with seal coat. Friendly, efficient and professional.
All Star Paving and SealingGood workers and they do a good job.
Mira ConstructionFrom average costs to expert advice, get all the answers you need to get your job done.
Discover central vacuum cost details to learn about price factors such as installation, size, labor, and ways to save on your central vacuum system.
You'll need to consider several factors when deciding central air vs. forced air. Our guide will discuss the differences between central and forced air.
Choosing the right heating system can be overwhelming. Learn the differences between baseboard heating vs. forced air to decide which is right for your home.
Comparing ductless AC vs. central air for your home? This guide breaks down the pros and cons of each AC type in detail to help you make the best choice.
Work out the pros and cons of window units versus central air with this handy guide to finding the best way to cool your home.
Learn the difference between mini split AC vs. central air. For example, central air has air ducts, but a ductless mini split AC cools without them.
