How to Keep Cool When Work Heats Up

Posted on 06/25/2025

Whether you're on a residential rooftop, inside a sweltering attic, or in a poorly ventilated commercial space, techs face intense heat while inspecting and cleaning HVAC systems. Working in these extreme conditions can put you at risk for heat exhaustion and heatstroke… serious health concerns that can sneak up on you fast. This summer, make sure you and your crew are prepared, protected, and proactive. You can’t take care of your customers if you’re not taking care of yourself.

Know the Warning Signs

According to the Mayo Clinic, the symptoms of heat-related illness range from mild to life-threatening.

Early Warning Signs

  • Heavy sweating
  • Cool, moist skin with goosebumps
  • Dizziness or fainting
  • Fatigue or weakness
  • Headache
  • Muscle cramps
  • Nausea or vomiting
  • Low blood pressure when standing

 

Medical Emergency Signs

  • Body temperature of 104°F or higher
  • Hot, dry skin
  • Confusion or slurred speech
  • Rapid heartbeat
  • Seizures or loss of consciousness

Preventing Heat-Related Illness

Here are smart safety practices every NADCA technician should follow, especially during summer months:

  • Hydrate Often
    • Don’t wait until you’re thirsty. Drink water consistently throughout the day.
    • Consider electrolyte drinks if you’re sweating heavily.
  • Dress for the Weather
    • Wear lightweight, loose-fitting, light-colored clothing.
    • Use a wide-brimmed hat or cooling towel when working outdoors.
  • Take Breaks in the Shade
    • Schedule regular breaks in a shaded or air-conditioned area.
    • Avoid back-to-back jobs during peak heat hours (usually between 11am–3pm).
  • Use a Buddy System
    • Keep an eye on your coworkers and speak up if someone doesn’t look right.
    • Encourage your team to report early signs of heat stress.
  • Know When to Slow Down
    • If you're just getting used to the heat, pace yourself.
    • Alternate heavy and light tasks whenever possible.

What to Do if Someone Shows Symptoms

  • Move the person to a cooler area.
  • Loosen or remove excess clothing.
  • Apply cool, damp cloths to their forehead, neck, and armpits.
  • Offer water if they’re alert and able to drink.
  • Monitor them closely; if symptoms don’t improve in 30 minutes, seek medical help.

If You Suspect Heatstroke

  • Call for emergency assistance immediately.
  • While waiting for help, move the person to a shaded, cool area.
  • Cool them down with wet towels, ice packs, or fans.
  • Do not give fluids if they are confused or unconscious.

Heat Safety is Job Safety

Your work already helps protect indoor air quality and comfort, so don’t overlook your own health and safety on the job. Promoting heat safety is part of promoting jobsite professionalism.