When it’s time to invest in a new air conditioning installation in Lake Geneva, one of the most important decisions you’ll make isn’t just about the brand or efficiency rating—it’s about size. We often meet homeowners who are surprised to learn that bigger doesn’t always mean better. Proper AC sizing is essential to your comfort, energy efficiency, and long-term system performance. Here’s why getting it right matters—and why you need professionals to do it.

Why Professional AC Sizing Is Important
Your air conditioner needs to be appropriately sized to match the cooling load of your home. The cooling load depends on many factors, including your home’s square footage, insulation levels, window placement, sun exposure, ceiling height, and more. If the AC unit is too small, it won’t be able to keep up with demand, leaving you hot and uncomfortable during peak summer temperatures. On the other hand, if it’s too large, it will cycle on and off too quickly, a problem known as short cycling.
The Problems With an Oversized AC
You might think that a more powerful AC unit would cool your home faster and better. But an oversized unit doesn’t run long enough to remove humidity from the air effectively. This results in a clammy, uncomfortable indoor environment even if the temperature is technically cool. Short cycling also puts extra wear and tear on your system, leading to more frequent repairs and a shorter lifespan. Plus, it wastes energy, which translates into higher utility bills.
The Problems With an Undersized AC
Conversely, an AC that’s too small will constantly struggle to meet the cooling demand, running for long periods without ever truly reaching the desired temperature. This not only increases your energy costs but also accelerates wear on the components. Your comfort suffers, and your system will likely break down more quickly under the strain.
How Professionals Determine the Right Size
At Edelman, we use industry-standard methods like Manual J load calculations to accurately determine the right size AC for your home. This calculation takes into account your home’s unique attributes, including:
- Square footage
- Type and amount of insulation
- Number and type of windows and doors
- Local climate conditions
- Number of occupants
- Heat-producing appliances
This detailed analysis ensures that we recommend a unit that matches your home’s specific cooling requirements, not just a guess based on square footage alone.
Why DIY or Online Calculators Don’t Cut It
While there are plenty of online tools that promise quick sizing estimates, they simply don’t offer the precision of a professional evaluation. Many of these calculators use only square footage, ignoring critical variables like ductwork design, air leakage, and insulation quality. When you have the right size AC professionally installed, you can expect:
- Better Comfort: Steady, even cooling throughout your home.
- Improved Efficiency: Lower energy bills and reduced environmental impact.
- Longer Lifespan: Less strain on your system means fewer breakdowns and repairs.
- Optimal Humidity Control: A properly sized system will effectively manage both temperature and moisture levels.
Trust Edelman for Professional Sizing and Installation
Choosing the right air conditioner for your home isn’t something you should have to figure out on your own. With decades of experience in HVAC services, the team at Edelman is here to guide you through every step—from accurate load calculations to expert installation and follow-up support.
Edelman Delivers air conditioning installation! Contact our team today.