If you’re dealing with Chicago’s notorious humidity, you might be wondering whether you need a dehumidifier, an air conditioner, or both. As Chicago’s trusted HVAC experts since 1922, we’ll help you understand the key differences and choose the right solution for your home.
Understanding the Basic Differences
At first glance, air conditioners and dehumidifiers might seem similar – they both help improve your home’s comfort. However, they serve distinctly different purposes. Air conditioners primarily focus on cooling your space, while dehumidifiers specifically target excess moisture in the air. Let’s break down these differences in detail:
| Feature | Air Conditioner | Dehumidifier |
| Primary Function | Cools air | Removes humidity |
| Temperature Effect | Lowers temperature | May slightly raise temperature |
| Humidity Control | Limited | Precise |
| Heat Output | Vents outdoors | Releases into room |
| Sensor Type | Thermometer | Hygrometer |
| Best For | Hot weather | High humidity in any temperature |
How These Systems Work
An air conditioner works much like the condensation on a cold drink on a hot summer day. It draws warm air over cooling coils, not only cooling the air but also removing some moisture in the process. The key difference is that an AC unit vents heat outside your home and cycles on and off based on temperature readings from your thermostat.
Dehumidifiers operate on a similar principle but with a crucial difference. While they also use cooling coils to remove moisture from the air, they’re solely focused on humidity control. Unlike air conditioners, dehumidifiers keep the heat in the room and run continuously until they reach your desired humidity level, without significantly affecting the temperature.
The Chicago Climate Challenge
Chicago’s unique climate presents specific challenges for homeowners. Our spring season often brings cool temperatures paired with high humidity, while summer combines both heat and moisture. The lakefront effect further complicates matters by increasing overall moisture levels, and our basements are particularly prone to dampness year-round.
These conditions mean that different seasons call for different solutions. During summer months (June-September) when temperatures exceed 75°F, air conditioning becomes essential for whole-home comfort. However, spring and early summer often demand dehumidification even when temperatures are comfortable, especially in basements and during cool but clammy days.
Choosing the Right Solution for Your Home
Your choice between an air conditioner and dehumidifier – or both – depends largely on your specific situation. If temperature is your primary concern and you’re focused on summer comfort, an air conditioner might be your best choice. Many Chicago homeowners start with central air conditioning for whole-house cooling.
However, if you’re dealing with moisture issues, particularly in a basement or specific rooms, a dehumidifier might be your answer. These units excel at creating comfortable conditions in cool but clammy spaces where an air conditioner isn’t necessary or might make the space too cold.
For many Chicago homes, particularly those with finished basements or specific health concerns, using both systems offers the ideal solution. This combination provides perfect temperature control while maintaining ideal humidity levels, resulting in better energy efficiency and enhanced indoor air quality.
Installation and Maintenance
Air Conditioner Care
- Annual spring maintenance
- Regular filter changes
- Professional installation required
- Outdoor unit considerations
Dehumidifier Care
- Regular empty/clean reservoir
- Filter cleaning
- Coil inspection
- Drainage system maintenance
Dehumidifier vs AC FAQ
Can I use just an AC to control humidity?
While ACs remove some moisture, they often can’t maintain ideal humidity levels, especially in Chicago’s climate.
What’s the ideal indoor humidity level?
30-50% relative humidity is ideal. Chicago homes often need help staying in this range.
Which should I install first?
In Chicago, we typically recommend starting with an AC system and adding a dehumidifier if needed for optimal comfort.
Do I need both systems in my basement?
Chicago basements often benefit from both systems due to our climate and below-grade moisture challenges.
Expert Help from Deljo
Don’t let Chicago’s unpredictable climate affect your comfort. At Deljo, we’ve spent nearly 100 years helping homeowners achieve the perfect indoor environment. Whether you need help choosing between systems, installing new equipment, or maintaining existing units, our experts can help you decide if a dehumidifier is better than an air conditioner for your home.
Ready to improve your home’s comfort? Contact Deljo today for a free system assessment, expert recommendations, and a customized solution that fits your needs. Trust Chicago’s comfort experts since 1922 to help you choose and maintain the perfect climate control solution for your home.
