Summer HVAC Checklist: 6 Ways to Keep Cool Without the Cost Spike

Summertime in Montana means long, warm days and plenty of sunshine. But when temperatures start climbing into the 80s and 90s, your air conditioning can quickly turn into your home’s biggest energy expense. At HHC, we believe you shouldn’t have to choose between comfort and affordability. That’s why we’ve put together this Summer HVAC Checklist to help you keep your cool without the cost spike.

Whether you’re in Great Falls, Cascade County, or one of the surrounding rural communities, these tips are designed for Montana’s unique climate and can help extend the life of your system.

1. Replace or Clean Your Air Filters

Dirty filters are a top reason HVAC systems work harder than they should. The U.S. Department of Energy reports that replacing a clogged filter can lower your AC’s energy consumption by up to 15% (source).

Tip: In Montana’s dusty summer months, check filters monthly, especially if you have pets.

2. Check Your Thermostat Settings

Many Montana homeowners leave their thermostat set low all day, which drives up cooling costs. Consider upgrading to a programmable or smart thermostat so you can:

• Set higher temps when you’re away.
• Cool the house just before you return.
• Monitor usage remotely.

Note that every situation is different, some houses should be kept at a more stable temperature with minimal adjustments.

If you’re unsure whether a smart thermostat is worth it, read our recent blog post comparing options and sharing our personal experience.

3. Clear Debris Around Your Outdoor Unit

With Montana’s windy spring and early summer, it’s common for leaves, grass clippings, and even tumbleweeds to gather around the condenser. Make sure to:

• Keep 2 feet of clear space around the unit.
• Gently hose off dirt and debris.
• Check for visible damage.

This simple task helps your system “breathe” and prevents overheating.

4. Inspect Ductwork and Seals

Leaky ducts can lose 20-30% of cooled air, especially in older Montana homes with crawl spaces or basements. If you notice uneven cooling or higher bills, have your ducts professionally inspected and sealed.

5. Close Blinds and Use Ceiling Fans

Montana enjoys long daylight hours in the summer with some areas see daylight until 10 p.m.! While that’s great for evening barbecues, it can also heat up your rooms. Use blackout curtains or blinds during peak sun hours and set ceiling fans to spin counterclockwise to circulate cool air.

6. Schedule a Professional Tune-Up

Before the hottest stretch of the summer hits, a professional HVAC tune-up can:

• Catch refrigerant leaks.
• Check electrical connections.
• Confirm safe operation.

Some utility providers in Montana also offer rebates for efficiency upgrades. Check with your provider to see what they have available.

Keep Your Cool the Smart Way

By following this checklist, you can stay comfortable while keeping your energy bills in check all summer long. If you’d like help with a pre-season tune-up or have questions about upgrading your thermostat, we’re here to help.