- Room Air Conditioner below a Window (Digital Image)
Sunlight shines on a shiny wooden floor in an empty room, while a room air conditioner keeps things cool. Hot summer days and muggy nights can be uncomfortable, which is why many people install room air conditioners.
- How Central Air Works
Central air conditioning helps keeps home and buildings cool on hot, muggy days. Learn more about how it works with this helpful guide to central air.
- Down Comforters
Down is the natural insulating layer found under the feathers on ducks and geese, and makes for very comfortable bedding! Down comforters are naturally warm in the winter and cool in the summer.
Osteospermums, commonly known as African Daisies, come in several colors including white and dark pink like those shown growing here in southern California. Osteospermums are perennials that thrive in sunny locations where the nights are cool.
- Room Air Conditioners
Room air conditioners are typically used to cool one or two rooms and are inexpensive alternatives to central air conditioning systems. Most units are designed to fit conveniently in a double-hung window.
- Window Air Conditioners (Digital Image)
Vertical and horizontal rows of air conditioners appear in the windows of a skyscraper.
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- Woodford, Chris. Cool Stuff and How It Works. New York, NY. Dorling Kindersley. 2005.
- Woodford, Chris, and Jon Woodcock. Cool Stuff 2.0 and How It Works. London, England. Dorling Kindersley. 2007.
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