Going on Vacation? Here’s How to Prep Your HVAC System Before You Leave

Whether you’re headed to the Northwoods for a long weekend or flying out for a summer getaway, there’s nothing like the peace of mind that comes with knowing your home—and your HVAC system—is ready for your absence. At Pharo Heating & Cooling, we know how valuable your comfort and energy efficiency are, especially during peak travel months in Wisconsin.

Before you grab your suitcase, take a few simple steps to ensure your HVAC system is in great shape while you’re away. Not only can this help lower your utility bills, but it also prevents unnecessary wear and tear—saving you from a surprise service call when you return.

1. Set Your Thermostat for Vacation Mode

If you don’t have a programmable or smart thermostat yet, now’s the time to consider one. It’s one of the simplest upgrades that makes a big impact on energy efficiency.

Tips for adjusting your thermostat before vacation:

• In the summer: Set the temperature 5–10 degrees higher than your normal comfort level (around 80–85°F). This prevents your AC from overworking while still protecting items like electronics, pets, or indoor plants. 
• In the winter: Set the thermostat around 55–60°F to prevent pipes from freezing without wasting energy. 

Bonus Tip: If you already have a smart thermostat, such as a Honeywell or Ecobee, use the “Away” or “Vacation” mode and monitor or adjust settings remotely while you’re gone.

Explore thermostat upgrades with Pharo Heating & Cooling.

2. Schedule HVAC System Checks Before You Go

Before heading out, it’s a good idea to make sure your heating and cooling systems are in top shape. Even a minor issue can become a major problem if left unattended for days—or weeks—while you’re away.

Consider scheduling:

• AC service and maintenance to clean coils, replace filters, and check refrigerant levels. 
• A quick inspection of your furnace or heat pump to ensure all systems are operating smoothly. 
• A look at your whole house humidifier filter if you have one, especially during dry seasons. 

Routine maintenance ensures your system doesn’t shut down unexpectedly and gives you peace of mind during your travels.

Book an HVAC service with a trusted team in Madison before your departure.

3. Save Energy with Smart Airflow Practices

Little adjustments around your home can lead to noticeable savings while you’re away.

Energy-saving vacation tips:

• Close curtains and blinds to reduce heat gain from sunlight. 
• Unplug non-essential electronics to minimize phantom energy use. 
• Seal windows and doors to prevent drafts and temperature fluctuations. 
• Check and replace air filters to keep air flowing efficiently. 

And don’t forget to shut interior doors to help your HVAC system operate more efficiently by limiting the airflow zone.

4. Double-Check for Leaks, Alarms & Power Issues

Avoid HVAC-related mishaps while you’re away by checking the basics:

• Look for visible leaks around your indoor AC unit, furnace, or humidifier system. 
• Test your smoke and carbon monoxide detectors—especially if you use gas heating. 
• Confirm your backup power setup is in place if you use sump pumps or rely on electric heat. 

If you’ve been considering backup solutions or adding an HVAC air purification system, vacation season is a smart time to make the upgrade.

Learn more about home air quality with Pharo’s air purification solutions.

5. Let a Neighbor Know You’re Away

Lastly, if you’ll be gone for more than a few days, ask a trusted neighbor or friend to pop in. They can check the thermostat, look for unusual noises from your HVAC system, or alert you if something seems off.

Having someone local on standby ensures a small issue doesn’t turn into a big (and expensive) one.

Why Proper HVAC Prep Matters

Taking time to prep your HVAC system before vacation helps you:

• Save money on energy bills 
• Extend the life of your HVAC equipment 
• Prevent emergency repairs or system failures 
• Return to a comfortable home 

At Pharo Heating & Cooling, we’ve been helping families across Madison, WI and surrounding communities keep their homes comfortable year-round. Whether you need furnace replacement service, new air conditioner installation, or just routine AC maintenance, we’re here to make home feel like home—even when you’re away.

Leave Confidently—We’ve Got Your HVAC Covered

Going on vacation should be relaxing—worrying about your HVAC system shouldn’t even cross your mind. With a few quick preparations and support from a team you can trust, you’ll return to a home that’s comfortable, efficient, and exactly as you left it.

Ready to get your heating and cooling system in Madison, WI checked before vacation? Schedule a service with Pharo Heating & Cooling or call us today. We’re proud to be one of the top-rated HVAC companies in Madison WI—and we treat every home like it’s our own.