
Summer heat waves can push any air conditioner to the edge. As temperatures in Highlands Ranch climb, many families notice rising energy bills, warm areas throughout the home and cooling systems that appear to run all day without keeping up.
You may think the AC alone determines how comfortable your home feels. In reality, your home’s airflow, insulation and shade all play a major role in cooling performance.
This guide covers three effective strategies that can improve comfort and cooling efficiency: boosting airflow in your home, making sure your home has enough insulation and adding shade to reduce heat from the sun. By following these summer AC tips from the pros at PS Cool Heat, you’ll keep your house cool in even the hottest weather.
Start with Airflow: Make Your Air Conditioner Work More Efficiently
AC units cool the air and distribute it through ductwork to the rooms in your home. For that cool air to make rooms comfortable, it must be able to move freely throughout the house. When airflow is blocked, some rooms may stay warm.
It’s common for homeowners to blame their air conditioner for poor cooling performance. In many cases, the AC is often working just fine—the real problem is restricted airflow. A dirty air filter, blocked vents and other HVAC issues can all prevent good airflow.
Home Airflow Optimization Checklist
Taking steps to boost airflow in your home can improve comfort, lower strain on your AC and decrease energy costs.
- Change dirty air filters. Routine AC air filter replacement helps your HVAC system increase airflow while helping improve indoor air quality.
- Makesure supply and return vents are unblocked. Furniture, rugs and curtains can cause blocked air vents that keep cooled air from circulating throughout your home.
- Keep interior doors open. Doing so helps air to move more evenly between rooms.
- Relocate furniture covering registers.Making sure registers are free of obstructions allows conditioned air to circulate properly.
- Book preventiveAC maintenance services. During a professional HVAC tune-up, a technician can inspect and clean dirty blower components that may affect your system’s ability to circulate air.
Insulation Is More Important Than You Might Expect
Insulation provides a barrier against hot outdoor air. As your air conditioner removes heat from inside your home, insulation helps keep that heat from getting inside. Better insulation increases comfort, decreases cooling run times and can help maximize the life of your HVAC system.
The attic is one of the largest sources of unwanted heat gain during heatwaves. Proper attic insulation and cooling go hand in hand because attic insulation limits heat transfer through the roof. Proper weatherstripping and sealing around doors and windows also help prevent hot outdoor air from sneaking inside.
Whenever insulation levels are too low or air leaks allow hot air to sneak inside, your AC has to work harder. As a result, many homeowners ask, “Why is my house hot with the AC running?” Often, insufficient insulation—not the air conditioner—is the problem.
Signs of Poor Home Insulation Levels
- Upper floor rooms are always hot
- Inconsistent room temperatures
- High utilitybills
- AnAC system that runs nonstop
Use Shade to Reduce Heat Gain
Sunlight shining through windows and heating up your roof and exterior walls increases indoor temperatures, forcing your air conditioner to work harder.
Direct sunlight can also affect your outdoor cooling unit by making it harder to release heat efficiently. Adding shade around your property can reduce solar heat gain, improve comfort and reduce summer energy bills. Shading your air conditioner’s outdoor unit can also help—but never restrict airflow around the condenser. Avoid fences, enclosures or dense landscaping that limit air movement.
5 Summer AC Tips to Reduce Heat with Outdoor Shade
- Plant trees and landscaping strategically. Use trees to shade your roof, walls, windows and outdoor air conditioning equipment. While providing shade for your outdoor AC unit, keep at least 2–3 feet of clearance on all sides and 5 feet above the unit to allow for enough airflow.
- Add window coverings. Light-colored curtains, cellular shades and thermal drapes limit heat gain from direct sunlight coming through windows.
- Install solar screens in your home. Solar screens, which are specially designed mesh curtains, used on sun-facing windows help limit the sun’s heat while still letting in natural light.
- Incorporate outdoor shade. Add landscaping and design features such as awnings, pergolas, shade sails or exterior shutters to block direct sunlight off windows so it doesn’t heat up your home.
- Close your blinds during the afternoon. Maintain 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 conditioning system.
Additional Summer Heat Survival Tips
Airflow, insulation and shade can make a big difference, but these AC efficiency tips can further improve comfort during periods of extreme summer heat.
- Settheappropriate ceiling fan direction. Rotate ceiling fans counterclockwise to produce 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 reduce indoor heat.
- Adjust thermostat settings. Avoid frequent temperature changes that make your AC to work harder.
- Schedule preventative maintenance. Routine service helps your system perform efficiently before peak cooling season.
- Watchfor unusual system performance. Call a professional to investigate strange noises, weak airflow or inconsistent cooling before they become more expensive repairs.
Know When It’s Time to Contact an HVAC Professional
DIY AC maintenance and energy-efficient cooling strategies can help, but some problems need professional attention. If you notice warm air is coming from your vents, airflow feels weak, your air conditioning runs almost constantly, energy bills suddenly increase, rooms cool unevenly or your system turns on and off repeatedly, it’s a good idea to schedule an expert evaluation.
At PS Cool Heat, our cooling specialists assess airflow, duct performance, insulation-related comfort concerns and overall system health to determine the underlying cause to help your HVAC system operate at its best throughout the summer.
Keep Your Cool All Summer Long
Keeping your home cool during a heat wave requires more than just your AC. Proper airflow, adequate insulation and effective shade work together to enhance comfort, boost efficiency and reduce cooling costs. Along with regular summer HVAC maintenance, these strategies can help your system run 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 looking for AC maintenance, a cooling system inspection, an airflow evaluation or a complete summer tune-up, we’ll 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
Why is my home still warm even when the AC is on?
If your living space remains hot even though your AC is running, the problem isn’t always your air conditioner. Limited airflow, too little insulation, improper thermostat settings or HVAC system issues can all reduce cooling performance and prevent cool air from reaching every room.
Does outdoor shade really help reduce cooling costs?
Yes. Trees, landscaping, awnings and window coverings block solar heat gain, helping your home remain cooler. Reducing the amount of heat entering your home means your air conditioning doesn’t have to work as hard to cool your home. That uses less energy, which helps reduce your cooling expenses.
How often should I check and replace my HVAC air filter in the summer?
Most homeowners should check their air filter every month during peak cooling season and replace it as necessary. Your recommended air filter replacement schedule depends on the type of filter, pets, allergies and how often your air conditioner runs.
Can insulation {help|make my air conditioner work better?
Absolutely. Proper home insulation limits heat transfer into your home, reducing strain on your air conditioning. Making sure your home has adequate insulation levels, especially in your attic or around windows, helps create more consistent indoor temperatures while lowering energy.
Should I put a cover over my outdoor AC unit during hot weather?
No. You should never cover your outdoor air conditioning unit while it’s operating because the condenser needs unobstructed airflow to release heat. Providing shade for your outdoor air conditioning unit is a good idea, but always make sure there’s at least 2–3 feet of clearance around the unit and 5 feet above it to maintain proper airflow.
What temperature should I set my thermostat at when it’s hot outside?
For many homes, setting the thermostat around 78 degrees when you’re home offers a good balance of comfort and energy efficiency during hot summer weather. Choose the highest temperature that keeps you comfortable, and try not to make large thermostat adjustments that force your AC to work harder.


