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AC Usage Tips for a Cooler, More Efficient Summer | Alltech HVAC

As Chicagoland settles into another hot and humid summer, your air conditioning system is working overtime to keep you comfortable. But is your AC working efficiently? Are you using the right temperature settings and air filters for maximum performance, energy savings, and indoor air quality?

At Alltech HVAC, we’re here to help you make smart, cost-effective decisions about how you cool your home or business. Let’s explore:

What temperature to set your AC to during summer
How to use your system efficiently
Which air filters are best for your needs
Signs your AC needs attention

🌡️ What Temperature Should You Set Your AC To in the Summer?

The U.S. Department of Energy recommends setting your thermostat to 78°F (25.5°C) when you’re home during the summer. This strikes a balance between comfort and energy savings.

🕘 Ideal Settings for Maximum Savings:

When You’re Home: 76–78°F
When You’re Away: 82–85°F or higher
At Night: 75–77°F (your body naturally cools during sleep)

Pro Tip: Every degree you raise your thermostat above 72°F can save you up to 3% on your cooling bill.

For even greater control, consider a smart thermostat, which automatically adjusts based on your habits and outside temperature — and can save up to 10% on cooling costs annually.

⚙️ How to Use Your AC Efficiently

Setting the right temperature is only part of the equation. Here’s how to help your AC run smarter — not harder:

✅ 1. Use a Programmable or Smart Thermostat

Automated temperature control helps avoid energy waste and prevents overcooling when no one is home.

Keywords: smart thermostat installation, energy efficient cooling, HVAC automation

✅ 2. Keep Doors and Windows Closed

Minimize air leaks and seal gaps to keep the cool air inside — especially in older homes.

✅ 3. Use Ceiling and Box Fans

Fans help circulate cool air, allowing you to raise the thermostat by 2–4 degrees without sacrificing comfort.

✅ 4. Block Direct Sunlight

Install blackout curtains or solar shades to keep indoor temperatures stable.

✅ 5. Don’t Set the Thermostat Too Low

Setting your AC to 65°F won’t cool your home faster — it just makes the unit work longer and harder.

🧼 Understanding Air Filters: What Type Is Best for You?

Air filters play a crucial role in cooling performance and indoor air quality. Choosing the right filter improves airflow, lowers energy use, and protects your health — especially during allergy season.

🔍 Filter Basics:

MERV Rating (Minimum Efficiency Reporting Value): Ranges from 1 to 16. Higher = more filtration.
Replace filters every 1–3 months, depending on usage, filter type, and indoor air conditions.

🌀 Types of HVAC Air Filters:

1. Fiberglass Filters (MERV 1–4)

Cheapest option
Basic protection against dust and debris
Not great for allergy sufferers

2. Pleated Filters (MERV 6–13)

Made of polyester or cotton folds
Trap pet dander, mold spores, and pollen
Recommended for most households

3. Electrostatic Filters (MERV 8–10)

Use static electricity to attract particles
Reusable options available
Mid-level cost and performance

4. HEPA Filters (MERV 16+)

Remove 99.97% of airborne particles
Ideal for allergies, asthma, or health-sensitive environments
Not always compatible with standard residential HVAC systems

Pro Tip: If you live in an older building in Des Plaines or Arlington Heights, a pleated MERV 8 or MERV 11 filter is usually the best balance of filtration and airflow.

Keywords: air filter types, improve indoor air quality, HVAC maintenance

🚨 Signs Your AC System May Need Attention

Even with the right settings and clean filters, your AC system can still show signs of wear or inefficiency. Be on the lookout for:

Warm air blowing from vents
Frequent cycling (on/off)
Unusual noises or odors
Higher-than-usual energy bills
Hot or cold spots around your home

A quick AC tune-up can prevent these issues and extend the life of your system.

🌎 Eco-Friendly AC Usage in 2025 and Beyond

Modern systems now use refrigerants like R-32 and R-454B, which are more environmentally friendly and efficient than legacy Freon-based systems (like R-22).

If your system is 10+ years old, it may be time to consider a high-efficiency upgrade that uses these refrigerants and meets new SEER2 efficiency standards.

Keywords: high-efficiency HVAC, R32 refrigerant, HVAC upgrade 2025

🛠️ Let Alltech HVAC Keep You Cool

Serving Des Plaines, Schaumburg, Elmhurst, and the greater Chicagoland area, Alltech HVAC is your trusted partner in comfort. Whether you need a summer tune-up, a new air filter, or a full system upgrade, we’re here to help you make the most of your AC all summer long.

📞 Call us today at (866) 482-2007

💻 www.alltech-hvac.com

📍 Family-owned, proudly serving Chicagoland for over 20 years