Choosing Between Mitsubishi’s 36,000 BTU Mini Split and the Goodman 3‑

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When I first started researching HVAC systems for our new home renovation, I assumed it would be as simple as choosing a brand I’d heard of and picking something mid-range. But once I started looking into all the technical aspects — SEER2 ratings, refrigerants, energy efficiency, installation — I realized how crucial it is to pick the right system, not just a popular one.

If you're comparing full-size central air conditioners with high-performance mini splits like the Mitsubishi 36000 BTU mini split, you’re probably asking: Which one delivers the best comfort, efficiency, and long-term value for my family? That’s exactly what I’ll help you unpack in this blog.

Let’s dive into how systems like the Goodman 3 Ton 14.5 SEER2 R-32 System measure up against premium mini splits — and which one might be the better fit for your needs.

Understanding the Goodman 3 Ton R-32 System

Let me start with the Goodman system I ended up choosing. The unit is rated at 14.5 SEER2 and uses the next-gen R-32 refrigerant, which is more environmentally friendly and efficient than the outdated R-410A. I wanted something future-proof and affordable, and this bundle checked all the boxes:

GLXS4BA3610 AC condenser for powerful cooling
AMST36CU1300 air handler for smooth air distribution
Uses R-32, with lower global warming potential
Quiet operation, long warranty, and energy-efficient specs

You get full-sized central cooling, perfect for 1,500–2,000 square foot homes, and it runs off your existing ductwork — making it an ideal upgrade from older systems.

Comparing It to the Mitsubishi 36000 BTU Mini Split

Of course, before I made my choice, I looked long and hard at mini splits. The Mitsubishi 36000 BTU mini split, for example, is a heavy-hitter in the ductless category. It boasts high SEER ratings — often 20+ — and advanced inverter-driven compressors. That means better part-load efficiency and zoned comfort.

Here’s what I liked about it:

Whisper-quiet indoor and outdoor units
No ductwork required
High-end air filtration
Smart, zone-based temperature control

If you’re in a home without existing ducts, or if you want ultra-precise control over each room’s temperature, mini splits shine.

But — and this is a big but — the price point for systems like the Mitsubishi 3 ton mini split can be nearly double that of the Goodman system, especially after professional installation.

Cost Breakdown: What Are You Really Paying For?

Mini splits come with premium price tags because of the technology packed inside. According to Energy.gov, ductless systems typically cost between $3,000 and $5,000 per zone, depending on capacity. Compare that to the Goodman 3 Ton bundle, which runs under $3,000 for the full system — condenser, air handler, and all.

Installation is another key factor. Central systems like the Goodman can cost less to install if you already have ductwork in place. Mini splits often require wall-mounted heads and additional electrical work. The labor alone can tip your total investment over $8,000 for a multi-zone ductless setup.

👉 Consumer Reports has a helpful breakdown of how mini split costs can vary based on zoning and installation complexity.

Energy Efficiency and Comfort: Who Wins?

This is where it gets interesting. While the Mitsubishi mini split boasts a SEER rating in the mid-20s, the Goodman 3 Ton R-32 system’s 14.5 SEER2 isn’t far behind in real-world efficiency — especially when properly matched to your home size and usage.

What tipped the scale for me was the cooling power and consistent airflow throughout the house. With mini splits, you’re cooling room by room. That’s great for apartments or additions, but if you’re trying to cool a 3-bedroom home evenly, a central system feels more natural.

Plus, the R-32 refrigerant used in the Goodman system offers superior heat transfer and lower environmental impact compared to both older refrigerants and some used in ductless models. Daikin has excellent research on why R-32 is becoming the global standard — even Mitsubishi is gradually moving in that direction.

What About Heating?

Many Mitsubishi 3 ton mini split systems come with heat pump functionality, meaning they can both cool and heat. This dual-function feature is excellent in moderate climates.

But where I live (and in much of the U.S.), winters are cold. We needed a stronger heating solution, so pairing the Goodman AC system with a gas furnace made more sense — especially in terms of BTU output and cost per therm.

According to HVAC.com, gas furnaces remain more effective for whole-home heating when temperatures dip below freezing.

A Quick Reality Check: Maintenance and Longevity

Mini splits require regular cleaning of each indoor air handler, and more delicate electrical parts mean higher repair costs. With a central AC like Goodman’s, maintenance is relatively straightforward: change your filters, clean your coil, and schedule annual service.

Goodman is also known for its 10-year limited parts warranty, which gave me peace of mind. And since most technicians are trained on Goodman systems, repairs and replacements are faster and cheaper.

If you’re in a smaller home or want to retrofit one or two rooms, a mini split might make more sense. But for families like mine — with active kids, pets, and full-house needs — a full central system still reigns supreme.

Final Thoughts: My Family’s Choice

After weighing it all — cost, efficiency, comfort, and maintenance — I chose the Goodman 3 Ton 14.5 SEER2 R-32 System, and I haven’t looked back. It offers the best blend of power, affordability, and future-ready refrigerant tech for our full-size home.

That’s not to say Mitsubishi mini splits aren’t fantastic — they absolutely are. But if you’re looking for high performance without breaking the bank, the Goodman system is a strong, smart, family-focused choice.