When it comes to heating and cooling your Arizona home or business, not all HVAC systems are created equal. You’ve probably noticed some buildings with large units sitting on the roof, while others have equipment on the ground or tucked away inside. So, what’s the difference? Let’s break it down in a simple way.
What Is a Package Unit?

A package unit is exactly what it sounds like… all your heating and cooling components are packaged into one single unit. These are most often installed on the roof or sometimes on the side of a building.
Pros of a Package Unit:
- Space saver: Great for homes or businesses with little yard space.
- Easy maintenance: Since everything is in one spot, your HVAC tech can service it more quickly.
- Quieter indoors: Because the equipment is outside, you won’t hear it running inside your home.
Cons of a Package Unit:
- Roof access needed: Repairs or maintenance require climbing on the roof.
- Weather exposure: Being fully outside, the unit takes more wear from sun and storms.
What Is a Split System?

A split system has two main parts:
- The condenser (outside unit) usually sits on the ground next to your home.
- The air handler or furnace (inside unit) is located in a closet, attic, or garage.
Pros of a Split System:
- Easier access: The indoor unit is sheltered, so it’s protected from harsh weather.
- More common in homes: This setup works well for residential spaces.
- Flexibility: Different efficiency options are available for homeowners.
Cons of a Split System:
- Takes up space indoors: You’ll need room inside for the air handler or furnace.
- Noise indoors: The indoor blower can sometimes be heard when it’s running.
Which One Is Right for You?
- Package units are often a good fit for commercial buildings or homes with limited yard space.
- Split systems are usually the best choice for residential properties, especially when you want part of the equipment protected indoors.
At the end of the day, the right choice depends on your home’s layout, your budget, and your long-term comfort needs.
Right Size & Efficient ✅
Whether your HVAC system is on the roof or on the ground, what matters most is that it’s the right size and efficiency for your home. If you’re unsure which option works best for your situation, our team at Pro Solutions Air is here to help you compare the benefits and choose the most cost-effective, energy-saving solution.


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