How Humidity Affects Your HVAC System


HVAC Repair in Philadelphia

High humidity inside and outside your house can negatively affect your HVAC system’s potential for cooling. Excessive levels of humidity will make your house feel hot during summer. The experts like HVAC repair in Philadelphia recommend the humidity level to be lower than 60% for your home to be comfortable. However, it is difficult to maintain humidity because the weather conditions keep changing throughout the year. Here is how high humidity affects your home’s HVAC system

The Effects of Humidity

The air conditioner systems that have no dehumidifiers will be able to cool the house during humid summers optimally. When humidity levels are extremely high, your HVAC will find it hard to maintain the necessary thermal levels in your home. This will cause uneven cooling and raise the chances of wear and tear to the air conditioner system and result in your HVAC requiring repairs.

Humidity impacts negatively on an air conditioner since it makes the surrounding air warm, making the HVAC work extra for it to generate cool air. The humidity thereby results in more strain on the HVAC. Moreover, the humidity levels in your home can cause the growth of mold and algae in your house, which will affect the air quality in your house and lead to allergic reactions.

When the humidity levels are high, you need to install a dehumidifier to safeguard your HVAC system even in the summer. The common signs to tell if you require a dehumidifier in your house are:

  1. Moist skin. Whenever your skin has a sensation of being clammy and moist, it portrays the humidity levels are high in your house.
  2. A musty odor. When the humidity levels are high, it will cause dampness in your house, leading to a musty smell.
  3. Foggy windows. When the vaporized humidity gets bottled up inside your house, the windows will tend to be foggy.

Choose to have an average or modern HVAC system. This is because when you install an oversized air conditioner, there are high chances of having high humidity levels. When you use an air conditioner larger than the required size of a cooling system, the cooling system will not run for long durations. This will lead to the HVAC system not being able to get rid of the excess moisture in the house. 

Consult us for HVAC repair in Philadelphia if you need to know if your HVAC in your house is the appropriate size or too large. In the long run, consider having a small cooling system in your house to work effectively in resolving the humidity issue.

HVAC functions by directing hot air out of your house and blowing in the cold, fresh air. That is not all, and the central air conditioning reduces the humidity levels to improve the efficiency in cooling and making your house more comfortable.

Causes Of High Humidity In Your Home

  • Having a large air conditioner system will do a lousy job of controlling humidity and temperature at the same time
  • Having a single speed air conditioner that can only run at one speed
  • Leaving your house fan on
  • You Have an old air conditioner unit. As the HVAC ages, it fails to work as effectively as before.

Contact Us Today

Reliable Plumbing provides expert HVAC repair in Philadelphia. Contact us today for a free estimate. 

savings icon

Online Savings

  • SAVE!

  • Senior Citizens & Military Discounts

  • SAVE!

  • Cash Discounts

  • CALL!

  • Daily Drain Cleaning Specials


phone icon (215) 379-8300



Reasons to Choose Reliable Plumbing

Plumbing, HVAC drain cleaning contractors serving Philadelphia, Bucks and Montgomery Counties


As a LICENSED MASTER PLUMBING COMPANY, we have the technical skill and over 20 years experience in the field. That means we get the job done right the first time, every time.

Trying to do plumbing work yourself can be a hassle. Leave it to the professionals to handle all your plumbing jobs. We are FAST, RELIABLE & AFFORDABLE. No job is too big or too small.




since 1994


I had issues with a leak underneath my sink. Mark was friendly and informative. He had my issue resolved in an hour at a very fair price. Even gave me advice on some basement hvac upgrades that can improve my water heaters lifespan. Will always use reliable plumbing for all my future issues.

Read More

24/7 Emergency Service!

phone icon (215) 379-8300

2 Ryers Avenue
Cheltenham, PA 19012

  • Reliable.


Online Savings

savings icon

Daily Drain Cleaning Specials

Check out our
special offers
Go to top