Heating and cooling systems, commonly referred to as HVAC (Heating, Ventilation, and Air Conditioning), are essential for maintaining comfortable indoor environments. These systems regulate temperature and air quality, ensuring that homes and buildings remain warm in winter and cool in summer. They can include various components such as furnaces, air conditioners, and heat pumps. The efficiency of heating and cooling systems is crucial for energy conservation and cost savings. Modern systems often incorporate smart technology, allowing users to control their environment remotely. Regular maintenance is important to ensure optimal performance and longevity of these systems.