The hot and humid summers in Houston, Texas, can get muggy and uncomfortable. You set the thermostat to a ideal temperature. The air conditioning starts up right away. But, even after your air conditioner cycles, your home still feels moist and clammy.
That’s not very comfortable.
It can be frustrating when the air conditioner seems to operate normally, yet your home doesn't actually feel pleasant. If your rooms feel humid but thermostat says cool, you're not the only homeowner. Local homeowners often have this experience.
The reason is simple: Temperature and humidity are two different things. Your temperature only tells you how comfortable the air is within your home. It doesn't measure how much humidity is in your home. When moisture levels are extremely high, your home can feel much hotter than the thermostat indicates, due to indoor humidity problems.
In this article, you'll learn how humidity affects your comfort, common reasons your home feels humid even when the temperature is right and basic troubleshooting steps you can try to reduce humidity in your Houston, Texas, home. That way, you’ll know when to call experts like the team at Air Current AC & Heat for professional help.
Why a Home Can Feel Humid Even If the Temperature Is Cool
The temperature is only part of what makes your living space comfortable. The amount of moisture in the air is also an equally important consideration. Many homes are typically more comfortable when indoor relative humidity stays 30-50 percent. When a home has high indoor humidity, the air feels less comfortable, more oppressive and stickier—even if the actual air temperature is cool.
Excess moisture can also contribute to dangerous mold growth, mildew, bad smells and other indoor air quality issues. That's why your house feels humid but the AC is running—your system may be lowering the temperature of the air without removing enough moisture.
Home Feels Humid? Here are 8 Common Causes
Residing in Houston, Texas, muggy conditions can be a challenge.
Many area homeowners wonder the same question: What's making my house feel humid?
There are several common causes. Understanding what's creating excess humidity is a good first step toward resolving the problem.
Here are several common reasons for elevated indoor humidity in Houston, Texas:
1. Oversized Air Conditioning
An air conditioner that's larger than your home actually needs lowers the temperature in your home too quickly. The problem is an oversized AC often doesn’t reduce humidity effectively because it shuts off before completing a full cooling cycle.
2. Clogged Air Filter
A blocked air filter reduces airflow throughout your heting and cooling system. This makes it harder for your equipment to remove moisture while cooling your home.
3. Clogged Condensate Drain
Your air conditioning collects moisture from your indoor air and and then it drains from the equipment through a condensate line. If that drain becomes clogged, moisture can't drain from the system properly, contributing to higher indoor humidity.
4. Dirty Evaporator Coil
The evaporator coil extracts both heat and moisture from your home's air. Ice formation or excessive dirt on the coil reduces its effectiveness and often requires professional AC repair services to restore performance.
5. Loose Ductwork
Ductwork moves cool air throughout your living space. Openings in ductwork can pull warm, humid air from attics, crawl spaces or other unconditioned areas into your HVAC system. This added moisture makes it more difficult to maintain comfortable humidity conditions.
6. Thermostat Fan is on “On” Setting Change setting to “Auto”
If your thermostat fan is set to "On" instead of "Auto", the blower continues running after the cooling cycle is finished. This can blow moisture collected on the evaporator coil back into your home instead of giving it time for it to drain away.
7. Extremely Humid Weather
During the area’s especially humid and hot summers, your HVAC system has to work harder to remove moisture from the air. Even when your cooling system is functioning as designed, sometimes your home feels muggy because outdoor humidity continually enters your home through doors, windows and normal air leakage.
8. Older HVAC Equipment
As heating and cooling systems wear out over time, they often become less effective at controlling humidity. HVAC maintenance improves performance, improves efficiency and helps identify worn-out parts. Neglecting regular air conditioning maintenance can limit performance, including your system's ability to remove moisture.
What You Can Check Before Contacting an HVAC Technician
If your house feels humid, there are some simple things you can check before requesting service. These DIY tips are easy ways to improve indoor comfort by helping your AC or heating system remove moisture more efficiently.
- Replace or inspect the air filter. A clean heating and cooling system air filter allows proper airflow, helping your system condition and dehumidify your home effectively.
- Verify the thermostat fan is set to Auto. This allows moisture to flow out after each cooling cycle instead of being blown back into your living spaces.
- Make sure supply and return vents are open and not covered up. Rugs or household furnishings over the vents or closed vents can limit airflow throughout your home.
- Look for water around the indoor unit. Water near your AC equipment may signal a clogged condensate drain or another drain problem.
- Monitor how your air conditioner should run. If the AC is short cycling or turning on and off frequently, or it seems to run constantly without cooling your home like it should, it's time to have the system evaluated by a professional.
Even if your thermostat still says cool but house feels humid, do not attempt repairs with refrigerant, electrical components or internal parts. Do-it-yourself fixes may be tempting, but these repairs require professional training and should always be performed by a qualified HVAC technician.
Does Your Home Need a Whole-Home Dehumidifier?
If you struggle with humidity in your house during summer or year-round moisture problems, a whole-home dehumidifier may be a good option. As opposed to portable units that only work in one room or area, a whole-home dehumidifier works alongside your HVAC system to manage humidity throughout your entire house.
Just one of Air Current AC & Heat's indoor air quality solutions, a whole-home dehumidifier makes your home more comfortable while helping reduce the risk of mold, musty odors and excess moisture. It can be a great choice for homes in humid areas or properties that still have humidity even with a properly functioning AC.
When You Need to Request HVAC Service
Ongoing HVAC humidity issues often trace back to an underlying problem that requires professional repair. The technicians at Air Current AC & Heat will evaluate refrigerant charge, airflow, blower performance and evaporator coils to identify why your system isn't controlling humidity effectively. They can also check ductwork, condensate drainage and overall system sizing to identify the root cause.
We also can get you set up with a heating and cooling tune-up. Routine seasonal tune-ups help identify small problems before they become complicated, costly repairs. That's why Air Current AC & Heat offers an HVAC maintenance plan that helps make regular inspections budget-friendly and stress-free.
If simple troubleshooting doesn't fix your problem, trust Air Current AC & Heat for dependable HVAC service in Houston, Texas.
Schedule HVAC service online or call 713-257-9226 today to take care of high indoor humidity issues for good.