الوحدة 8 - 8 أ

Air conditioning is a system that cools and controls the temperature inside a house, car, or other enclosed space. It works by removing heat and moisture from the air, making the environment more comfortable, especially in hot weather. The system usually includes a compressor, a cooling unit, and fans that help distribute the cooled air. Some air conditioning systems also have heating functions, allowing them to regulate temperature year-round. They improve air quality by filtering dust and humidity, making indoor spaces more pleasant and easier to breathe in.

Central heating is a system used to heat a building by distributing warmth from a single source to multiple rooms. This system typically involves a central boiler, furnace, or heat pump that heats water, air, or other fluids. These heated fluids are then circulated through pipes, ducts, or radiators to provide warmth throughout the space. Central heating is commonly found in homes, offices, and larger buildings, providing a comfortable indoor temperature during colder months. The system can be powered by gas, electricity, oil, or renewable energy sources, and it helps maintain a consistent, even heat across the building.

A balcony is a small, raised platform attached to the outside of a building, typically on an upper floor. It is usually enclosed by railings or walls for safety and is accessed through a door or window. Balconies provide an outdoor space for relaxing, enjoying the view, or placing small items like plants or chairs. They are common in apartments, houses, and hotels and offer a private outdoor area without requiring ground-level space. Balconies can add both function and aesthetic appeal to a building.