Energy efficiency tips often overlap that gray line between science and pseudoscience. Here are several energy efficiency myths that have been proven to be not totally true.
Myth 1. It is better to leave an electric fan running in a room devoid of people.
Electric fans work by improving air circulation, doing nothing for the air’s actual temperature. It is the air hitting a person skin and taking away some of the body’s radiating heat that gives fans their cooling effect. An electric fan can’t actually cool the temperature in a room. In a room without people, having a running electric fan would just be pointless.
Myth 2. It is better to leave lights, gadgets, and appliances on throughout the day than to repeatedly turn them on and off.
This may have been true in the past, when powering on took some time, but nowadays, this saying is largely obsolete. Turn off things when not in use. For individual air conditioners and heating units, it is always a good idea to turn off the unit whenever no one is in the room.
Myth 3 Windows and doors are the prime avenues of air leakage.
This is slightly true, windows and doors do leak air, but there is a caveat: it is in air ducts as well as in ceiling holes where air is most likely to pass through.
Myth 4 Purchasing an energy efficient air conditioning or heating unit can drastically reduce my utility bill.
Again, slightly true. Energy efficient units do lower your electric bill. But these alone cannot do it drastically. It takes careful unit placement, proper system planning, and efficient usage in order to see significant reduction in one’s energy bill.
Myth 5 It takes a significant investment to have an energy efficient home or building.
One of the worst myths of all. People still believe that it takes a large amount of initial investment in order to reduce future monthly energy expenses. The price difference between energy efficient units and non-efficient ones is practically negligible. Also, drastic changes in one’s home or building is not needed to make it energy efficient. All it takes is conscientious and prudent energy usage, common sense when it comes to plugging up holes and placing units, and good old-fashioned vigilance to make sure that the equipment runs as they are supposed to and anyone can be on their way to an energy efficient home