Of course turn off your electric fan at night and close all windows, drapes, shutters, or any other place that leads to the outdoors! (During the day open your blinds and curtains to let in the sun's rays!) Also, seal any holes that may be in your attic or walls. These are all ways to trap heat inside and prevent it from escaping. This helps because along the edges of the unit, heat may have a way to escape from here as well. Also, don't block your heating vents, and remember the simplest things can go a long way!
Choose a small to average size fan for a bedroom or other average sized room. With a large fan, hallways and stairs are optimal. Have you ever walked up the stairs and felt a distinct chill of cold air hit you as you take each step? This is because columns of heat often rise straight up stairways (remember, scientifically, heat rises!). In this case, heat is often trapped at the top of stairways, leaving the steps of the stairs chilled and cold.
With a large reversible fan in the stairwell, the warm air will be pushed down to fill the entire space of the stair, to return your stairway to its natural temperature instead of reminding you of walking into an icy cave! You may also want to place your fan in a hallway where doors are nearby. This way when cold air comes in through doorways at the end of a hall, the warm air will continue circulating and the cold air won't be able to circulate in. The reversible motor does wonders in these types of spaces!
Audrey Peterson is a Product Specialist with knowledge in the design and applications of a variety of electric fans http://www.electric-fan.com/ Analyzed models include:
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