The extreme heat disproportionately affects low-income households, renters, and those with aging or inefficient cooling systems. Renters are more likely to experience inadequate cooling, with 17.7% citing insufficient capacity compared to 11.6% of homeowners. Households without air conditioning, which account for 6.9% of U.S. homes, are nearly twice as likely to endure uncomfortable heat. The financial burden of repairs and rising utility costs leaves many unable to maintain safe indoor temperatures, increasing health risks during heatwaves.