Which is more energy efficient: on-demand or a storage water heater?

Answer On One Hand: Conventional Heaters Can Be ImprovedThe energy efficiency of conventional water heaters improves with the installation of blanket insulation to the outside of the storage tank and by s... Read More »

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Which is more energy efficient lcd or led tv?

LED back lit TV's, are more energy efficient than other LCD TVs, that use CCFL (Cold Cathode Fluorescent Lamp) technology for the back lighting.

Is coal or oil more energy efficient?

Oil is more energy-efficient than coal, according to a 2008 report by the International Energy Agency. Oil's 37 percent efficiency was 3 percent greater than coal's 34 percent efficiency. Efficienc... Read More »

How to Make a Fireplace More Energy Efficient?

Energy costs are soaring! While homeowners are frantically looking for ways to save money, most don't realize that their dollars are readily escaping through one of the biggest holes in their home ... Read More »

Is it more energy efficient to leave my pc on 24/7 or shut it off at night?

I leave mine on all day, at 11 pm it goes into hibernation until 7 the next morning......all I turn off is my monitor.....Christopher