Everything You Need to Know About HVAC Package Units: Gas Packs, Heat Pumps & More

When it comes to keeping your home comfortable year-round, few decisions are as important as the HVAC system you choose. Whether you're planning a major upgrade or replacing a failing unit, the stakes are high—and so are the energy bills if you make the wrong call.

I’ve been down this road myself, and let me tell you—navigating all the talk about HVAC package units, gas pack HVAC systems, heat pump packages, and packaged system options can get overwhelming fast. So today, I want to help make that decision easier by sharing what I’ve learned, what to look for, and why I believe the Goodman 3 Ton 14.5 SEER2 R-32 Bundle is an option worth your attention.

Let’s dive in.


What Is an HVAC Package Unit, Anyway?

If you're new to HVAC terminology, a package unit is essentially an all-in-one heating and cooling system. Unlike split systems where the furnace and condenser are separate, packaged systems are self-contained—usually installed on a slab beside your home or even on the roof for commercial buildings.

The advantages? For one, installation is simpler and typically less expensive than separate systems. And if you're short on space indoors (hello, urban living), a gas pack heating and cooling unit can save the day.

💡 According to Trane’s official resource, packaged systems are perfect for warmer climates where basements are rare, and homeowners want to maximize indoor living space.


Why the Shift to R-32 Refrigerant Matters

Before we get too deep into model recommendations, let’s talk refrigerant. Most packaged systems have long relied on R-410A refrigerant, but newer models are switching to R-32, a lower-global-warming-potential option that aligns with today’s sustainability goals.

R-32 offers:

  • Higher efficiency

  • Better heat transfer properties

  • 67% lower Global Warming Potential (GWP) than R-410A

  • Easier recycling and reuse

The Environmental Protection Agency (EPA) lists R-32 as one of the key players in the next generation of eco-friendly refrigerants. If you're environmentally conscious like I am, this isn't just a bonus—it's a must.


Sizing It Right: From 1 Ton to 3 Ton Gas Package Units

So, how do you know which package size is right for your home?

  • A 1 ton package unit works for small homes or mobile homes up to ~600 sq. ft.

  • A 1.5 ton heat pump package unit fits homes up to 900 sq. ft.

  • A 2 ton gas package unit is ideal for 900–1200 sq. ft.

  • A 3 ton gas package unit comfortably covers 1300–1600 sq. ft. depending on insulation and layout.

Oversizing wastes money and energy. Undersizing leads to poor comfort and overworked equipment. That’s why I recommend working with an HVAC contractor to do a proper load calculation—or use an online BTU calculator like this one from PickHVAC to estimate based on square footage and climate.


Why I Chose the Goodman 3 Ton R-32 Bundle

Now let’s talk real-life use. After researching countless gas packages, heat pump package models, and even considering a dual-fuel hybrid system, I ultimately chose a bundle system that includes:

  • GLXS4BA3610: A 3-ton R-32 AC condenser

  • AMST36CU1300: A multi-speed air handler

Not only does it meet modern SEER2 efficiency standards, but it’s also designed for quiet operation, high reliability, and easy servicing. Plus, the R-32 refrigerant just felt like a future-proof move.

The other thing I love? It works well with either horizontal or package unit ductwork configurations—ideal for retrofits or custom installs.

You can check it out here: Goodman 3 Ton 14.5 SEER2 R-32 System Bundle.


How It Stacks Up Against Other Packaged Units

I considered other models—especially from big names like Carrier and Rheem—but found that the Goodman system gave me the most bang for my buck. Still, here’s how it compares to other popular options:

System Type Refrigerant Tonnage Range GWP Rating
Goodman 3 Ton R-32 Gas Pack R-32 3 Ton Low
Rheem Classic Series Heat Pump R-410A 2–5 Ton Medium
Carrier Comfort Pack Gas/Electric R-410A 2–5 Ton Medium
Lennox LRP16GE Gas/Electric R-410A 2–5 Ton Medium

Gas Pack HVAC: Pros and Cons

✅ Pros:

  • All-in-one heating and cooling

  • Great for limited space

  • Easier to install and service

  • Often cheaper upfront than split systems

❌ Cons:

  • Can be noisier than indoor furnaces

  • Exposure to outdoor elements may reduce lifespan

  • Limited customization versus split systems

If you're in a climate that experiences both heating and cooling needs year-round, a gas package unit can be your best friend—just make sure your ductwork is up to the task.


Smart Buying Tips

Here are a few of my favorite tips for shopping smart when it comes to packaged HVAC systems:

  1. Check SEER2 & AFUE Ratings
    Energy efficiency saves you money in the long run. Look for high SEER2 for cooling and AFUE above 90% for gas heating.

  2. Go with a Trusted Dealer
    Make sure you’re buying from an authorized source. The AHRI Directory lets you verify if your system qualifies for local utility rebates.

  3. Factor in Ductwork Costs
    If you’re switching from a split system, you might need to modify your package unit ductwork. Don’t skip this step.

  4. Know What’s Included
    Some systems include thermostats, UV air purifiers, or winter covers. These value-adds can save money upfront.


Final Thoughts: Is a Gas Pack Right for You?

Choosing the right HVAC system isn’t just about brand names or big tonnage—it’s about finding what works best for your climate, square footage, energy goals, and budget.

Whether you’re looking at a 1.5 ton heat pump package unit for a guest house or a 3 ton gas package unit for your family home, today’s market has incredible options.

But if you're ready for an eco-friendly, high-efficiency system that won’t break the bank, I’d start with a closer look at the Goodman 3 Ton 14.5 SEER2 R-32 System. It’s what I trust in my own home—and it might just be the upgrade your family deserves.

Smart comfort by samantha

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