When Is the Best Time To Switch From Heat to AC in Idaho?
Idaho’s seasons can change quickly, making it tricky to decide when to turn off the heat and switch to air conditioning. Switching too early can leave you shivering at night, while waiting too long can mean uncomfortable indoor temperatures and higher energy bills.
At Peppy Heating & Cooling, we are frequently asked our opinion, and while situations vary – let’s break down the best time to switch from heat to AC (and answer these common homeowner concerns!).
When Should You Switch to AC?
Unlike other parts of the country, Idaho doesn’t follow a strict seasonal timeline for switching HVAC systems. Instead of relying on calendar dates, watch for these signs that it’s time to switch to cooling mode:
- Daytime highs consistently reach the mid-60s or higher
- Nighttime temperatures stay above 50 degrees for at least a week
- Indoor humidity levels begin to rise
- South-facing rooms feel warmer than the rest of the house
- Family members start adjusting fans or cracking windows for relief
If you’re still seeing cold mornings and chilly nights, consider leaving your thermostat on “AUTO” so it can switch between heating and cooling as needed.
“Will running my AC too early increase energy costs?”
No, as long as you use it efficiently. The key is to set your thermostat at the highest comfortable temperature and avoid making drastic temperature swings. A sudden drop from 75 to 65 degrees forces your system to work harder than necessary.
How to Optimize Energy Efficiency During The Transition
Spring and fall offer a great opportunity to cut down on energy consumption without relying too much on heating and cooling.
To save money while staying comfortable, try to:
- Use Natural Ventilation – Open windows in the morning and evening to let in cool air instead of running your AC.
- Gradually Adjust Your Thermostat – Shift temperatures a few degrees at a time rather than making sudden changes.
- Program Your Thermostat – A smart thermostat automatically adapts to spring and fall temperature swings, keeping your home comfortable while minimizing energy waste.
- Schedule HVAC Maintenance – Regular system tune-ups prevent unexpected breakdowns and keep your system running efficiently.
“Should I turn my heat back on if we get a cold snap?”
Yes! Spring weather in Idaho can be unpredictable, so don’t hesitate to briefly turn your heat back on if the temperature drops suddenly. The key is to adjust gradually rather than making extreme changes.
Is Your AC Ready for the Season?
Before switching to cooling mode, take these simple steps to make sure your AC is ready:
- Replace your air filter. A clean filter improves airflow and keeps your air clean.
- Clear debris around your outdoor unit. Leaves and dirt restrict airflow, making your AC work harder.
- Check vents and registers. Make sure furniture and curtains aren’t blocking airflow.
- Schedule a professional tune-up. An AC inspection prevents breakdowns and keeps energy costs low.
“What’s the best thermostat setting for spring in Idaho?”
A good rule of thumb is:
- 68-72 degrees when you’re home
- ~78 degrees when you’re away
This balance keeps your home comfortable without wasting energy.
Peppy Heating & Cooling: Comfort Through Every Season
Switching from heat to AC at the right time ensures energy efficiency, comfort, and HVAC longevity. At Peppy, we help Idaho homeowners prepare their systems for seasonal changes with expert maintenance and guidance.
Call (208) 906-6928 today to schedule a system tune-up and make sure your home is spring-ready!
