As an AI language model, I do not have the exact information on what types of chimneys are specifically used in duplex villas, but generally, the different types of chimneys that can be used in residential homes include:
1. Masonry Chimneys: These chimneys are made of bricks and mortar and are permanently fixed in place. They are known for their durability and aesthetic appeal.
2. Metal Chimneys: These chimneys are made of stainless steel or galvanized metal and are quick to install. They are suitable for use with non-wood-burning heating appliances.
3. Prefabricated Chimneys: These chimneys are factory-made and can be made of metal, masonry or other materials. They are lightweight and easy to install and can be customized to fit any building.
4. Double Wall Chimneys: These chimneys have a second inner wall to provide extra insulation and increased safety from heat transfer.
Note: The type of chimney used in duplex villas may vary depending on various factors, such as the type of appliance used for heating, local building codes, and the architecture of the duplex villa itself.
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