Summer heat waves can push your air conditioner to the breaking point. As temperatures in Iowa City continue to increase, many homeowners notice rising energy bills, hot spots throughout the home and cooling systems that appear to run all day without keeping up. 

It’s easy to assume the air conditioner is the only thing that affects how comfortable your home feels. However, your home’s air circulation, insulation and shade all play a major role in cooling performance.  

This guide explains three practical strategies that can improve comfort and cooling efficiency: improving airflow in your home, making sure your home has adequate insulation and creating shade to reduce heat from the sun. By following these summer AC tips from the pros at Kelly Heating & Air Conditioning, you’ll keep your house cool in summer. 

Start with Airflow: Improve Airflow for Better Cooling 

AC units lower the temperature of air and send it through ductwork to the rooms in your home. For that cool air to cool every room effectively, it must move freely throughout the house. Whenever airflow is blocked, some rooms may feel warmer than others. 

It’s common for homeowners to blame their air conditioner for a hot home. In many cases, the AC is often working just fine—the real problem is poor airflow. A clogged air filter, blocked vents and other HVAC issues can all restrict airflow. 

Home Airflow Optimization Strategies 

Following these simple steps to boost airflow in your home can improve comfort, reduce strain on your AC and reduce energy costs. 

  • Replace dirty air filters. Consistent AC air filter replacement helps your HVAC system increase airflow while improving indoor air quality. 
  • Makesure supply and return vents are free from obstructions. Furniture, rugs and curtains can cause blocked air vents that prevent cooled air from circulating throughout your home. 
  • Open up doors in unused rooms. This helps air to move more evenly between rooms. 
  • Reposition furniture covering registers.Making sure registers are uncovered allows conditioned air to circulate more easily. 
  • Schedule preventiveAC maintenance services. By doing a professional HVAC tune-up, a technician can check and clean dust-covered blower components that may affect your system’s ability to circulate air. 

Insulation Plays a Bigger Role Than Many Homeowners Think 

Insulation acts as a barrier against outdoor heat. Although your air conditioning removes heat from inside your home, insulation helps prevent outdoor heat from entering. High-quality insulation improves comfort, lowers cooling run times and can help increase the life of your HVAC system. 

The attic is one of the largest sources of solar heat gain during heatwaves. Proper attic insulation and cooling work together because attic insulation slows heat transfer through the roof. Sealing gaps and sealing around doors and windows also help prevent hot outdoor air from entering your home. 

If insulation levels are too low or air leaks are present, your air conditioner has to work harder. This often causes homeowners to ask, “Why is my house hot with the AC running?” Often, the real problem is inadequate insulation, and the AC is not the problem. 

Signs of Poor Home Insulation Levels 

  • Upper floor rooms are always hot 
  • Inconsistent room temperatures 
  • High utilitybills 
  • An air conditioner that rarely shuts off 

Use Shade to Reduce Heat Gain 

Sunlight streaming through windows and heating up your roof and exterior walls raises indoor temperatures, forcing your air conditioner to work harder. 

Direct sunlight can also reduce the efficiency of your outdoor air conditioning unit by reducing its ability to release heat efficiently. Using shade around your property can minimize solar heat gain, improve comfort and reduce summer energy bills. Putting in shade over your air conditioner’s outdoor unit can also help—but never block airflow around the condenser. Avoid fences, enclosures or dense landscaping that limit air movement. 

5 Summer AC Tips to Reduce Heat with Outdoor Shade 

  1. Add trees and landscaping strategically. Place trees to shade your roof, walls, windows and outdoor cooling equipment. If you’re shading your outdoor AC unit, keep at least 2–3 feet of clearance on all sides and 5 feet above the unit to maintain enough airflow. 
  2. Add window coverings. Light-colored curtains, cellular shades and thermal drapes limit heat gain from sun streaming through windows. 
  3. Use solar screens in your home. Solar screens, which are specially designed mesh curtains, placed on sun-facing windows help block the sun’s heat while still providing natural light. 
  4. Incorporate outdoor shade. Use landscaping and design features such as awnings, pergolas, shade sails or exterior shutters to keep direct sunlight off windows before it enters your home. 
  5. Close your blinds during the afternoon. Shut blinds or shades closed on west- and south-facing windows during the hottest part of the day to reduce indoor temperatures and lighten the load on your air conditioner. 

Additional Heat-Wave Survival Tips 

Airflow, insulation and shade all make a big difference, but these AC efficiency tips can also increase comfort during periods of extreme summer heat. 

  • Change ceiling fan direction. Rotate ceiling fans counterclockwise to create a cooling breeze. 
  • Reduceuse of heat-generating appliances during the hottest part of the day. Operate ovens, dryers and dishwashers in the morning or evening to helpreduce indoor heat. 
  • Adjust thermostat settings. Avoid frequent temperature changes that make your AC to work harder. 
  • Book preventative maintenance. Professional service helps your system perform efficiently before peak cooling season.
  • Monitor unusual system performance. Call a professional to investigate strange noises, weak airflow or inconsistent cooling before they become larger repairs. 

Recognize When It’s Time to Turn to an HVAC Professional 

Basic AC maintenance and energy-saving cooling strategies can help, but some problems require professional attention. If warm air is coming from your vents, airflow feels weak, your air conditioner runs almost constantly, energy bills spike, rooms cool unevenly or your system turns on and off repeatedly, it’s a good idea to schedule an expert evaluation. 

At Kelly Heating & Air Conditioning, our cooling specialists evaluate airflow, duct performance, insulation-related comfort concerns and overall system health to determine the real cause to help your HVAC system operate at its best throughout the summer. 

Stay Comfortable All Summer Long 

Staying comfortably cool during a heat wave requires more than just your air conditioner. Proper airflow, adequate insulation and effective shade work together to improve comfort, improve efficiency and reduce cooling costs. When paired with regular summer HVAC maintenance, these strategies can help your system operate at its best when you need it most. 

has the expertise and experience to keep you comfortable in even the hottest weather. If you’re in need of AC maintenance, a cooling system inspection, an airflow evaluation or a complete summer tune-up, we’re here to help boost efficiency and comfort during hot summers. Schedule cooling services online or call today to get started. 

Frequently Asked Questions About Summer Air Conditioner Efficiency 

If your living space remains hot even though your AC is running, the problem isn’t always your air conditioner. Poor airflow, too little insulation, improper thermostat settings or HVAC system issues can all reduce cooling performance and stop cool air from reaching every room.

It can. Trees, landscaping, awnings and window coverings help reduce solar heat gain, helping your home feel cooler. When less heat enters your home means your air conditioning doesn’t have to work as hard to cool your home. That uses less energy, which helps decrease your cooling expenses.

Most households should check their air filter every month during the busiest cooling season and replace it as necessary. Your recommended air filter replacement schedule depends on the air filter you use, pets, allergies and how often your air conditioner runs.

Yes. Proper home insulation reduces heat transfer into your home, reducing the workload on your AC. Verifying your home has appropriate insulation levels, especially in your attic or around windows, helps keep more consistent indoor temperatures while reducing energy.

Not while it’s running. You should never cover your outdoor air conditioning unit while it’s running because the condenser needs unrestricted airflow to release heat. Providing shade for your outdoor air conditioner unit is helpful, but always maintain at least 2–3 feet of clearance around the unit and 5 feet above it to provide proper airflow.

For many homes, setting the thermostat around 78 degrees when you’re home offers the right balance of comfort and energy efficiency during very hot weather. Set the highest temperature that keeps you comfortable, and don’t make large thermostat adjustments that force your air conditioner to work harder.