Residential HVAC units are systems designed to provide heating, ventilation, and air conditioning in homes. These units help maintain comfortable indoor temperatures and improve air quality by regulating airflow and filtering out pollutants. Common types include central air conditioning, furnaces, and heat pumps. These systems can be powered by electricity, gas, or oil, depending on the home’s setup and climate. Regular maintenance, such as changing filters and checking for leaks, is essential to ensure efficiency and longevity. Properly functioning HVAC units contribute to energy savings and a healthier living environment.