🌀 The AC Buying Journey Begins: What Homeowners Should Know Before Replacing Their System
- Air Conditioning Guys Since 1951
- Apr 14
- 3 min read
Thinking about replacing your air conditioning system? Whether your current unit is on its last leg or you’re just tired of sweating through summer, choosing a new AC can feel overwhelming.
Before you start making calls or comparing price tags, it’s important to understand what matters most in the AC buying journey - so you don’t make costly mistakes.
Here’s what smart homeowners consider before signing that contract.
🚨 1. Is It Really Time to Replace?
Not sure if your system is ready for retirement? These signs might say it’s time:
It’s over 12–15 years old
Frequent breakdowns or costly repairs
Rooms are hotter or colder than they should be
Rising energy bills - with no lifestyle changes
It’s making loud noises or cycling on and off constantly
If you’re nodding your head to more than one of those, a replacement might not just be wise - it could actually save you money in the long run.
🌬️ 2. Know Your System Options
Today’s HVAC world offers more than just central air. Here are the most common types of cooling systems:
Central AC: Uses ductwork to distribute cooled air throughout the home.
Ductless Mini-Splits: Ideal for homes without ducts or for zoning. They’re quiet, efficient, and customizable.
Heat Pumps: Provide both heating and cooling using electricity - a smart, eco-friendly option in mild to warm climates.
The “best” option depends on your home’s layout, insulation, budget, and future goals.
💡 3. Understand Energy Efficiency Ratings
If you’ve heard terms like SEER2 and ENERGY STAR, here’s what they mean:
SEER2 (Seasonal Energy Efficiency Ratio 2): The higher the number, the more efficient the system.
ENERGY STAR: Indicates the system meets or exceeds federal efficiency standards.
Higher-efficiency systems often cost more up front but pay off in lower utility bills over time. Also, many energy-efficient systems qualify for rebates or tax incentives, so don’t forget to ask your contractor about those.
❌ 4. Avoid These Common AC Buying Mistakes
Here are pitfalls we see homeowners fall into time and time again:
Shopping based on price alone - not performance or reliability
Assuming a bigger system = better cooling (it doesn’t!)
Not asking for a load calculation to properly size the system
Hiring unlicensed or poorly rated contractors
Forgetting to consider warranty coverage and maintenance
📏 5. The Myth of “Bigger Is Better”
One of the biggest myths in HVAC is that a larger system will cool your home faster or better. In reality, an oversized system can:
Cycle on and off too frequently
Use more energy
Wear out faster
Leave your home humid and uncomfortable
That’s why sizing is critical - your contractor should perform a Manual J load calculation to determine the perfect capacity for your home.
✅ Final Thoughts: Start with the Right Map
Just like you wouldn’t head out on a road trip without a destination in mind, you shouldn’t start your HVAC journey without understanding your comfort needs, your home’s structure, and your long-term goals.
Do your research. Ask questions. And remember: the right system, installed by the right contractor, will keep your home comfortable for years to come.
🎧 Like this topic? You can listen to the full conversation in Episode 1 of our podcast SEERious Talk — available on Spotify, Apple Podcasts, and YouTube.
Louis Fuentes has been Chief Cooling Guy at Air Conditioning Guys for over 25 years now. A former 3 times Board Member of Air Conditioning Contractors of America (ACCA) representing over 60,000 of our nations HVAC professionals in the trades. An expert on Energy Efficiency and Ductless Mini Splits.