Martens Minute

Heat & Humidity Is Here

August 26, 2026

Wisconsin summers are hot and humid. Together, heat and humidity place additional demands on your air conditioner, affecting comfort, energy bills, and even your home.

Why Your Air Conditioner Works Harder in Summer

Higher outdoor temperatures mean your air conditioner runs longer and works harder to maintain a consistent indoor temperature. Dirty air filters, restricted airflow, low refrigerant levels, and deferred maintenance reduce efficiency and increase energy consumption and operating costs.

Longer run times are normal during hot weather, but your system should still be able to keep your home comfortable. If your air conditioner isn't reaching the set temperature, cycles frequently, or produces weak airflow, it may be worth having the system inspected.

Why Humidity Matters Indoors

In addition to cooling your home, your air conditioner helps remove moisture from the air. If it isn't operating properly, isn't sized correctly, or simply can't keep up with demand, excess humidity becomes noticeable indoors.

You'll feel hotter than the thermostat setting because humidity slows the evaporation of moisture from your skin. You may notice window condensation, musty odors, and mildew growth.

Long-term, excess moisture can damage wood floors, trim, and doors.

If your home feels muggy even when the air conditioner is running, an inspection can help identify the cause.

Stay Ahead of Summer Problems

One of the best ways to prepare for summer is with routine HVAC maintenance. Seasonal inspections help identify small issues before they turn into unexpected repairs during the hottest months of the year.

Martens' Peace of Mind Protection Plan makes routine maintenance simple. The plan includes seasonal HVAC maintenance designed to help reduce the risk of unexpected repairs and keep your air conditioner running efficiently throughout the summer.