Energy

• Dryers usually perform the same function, making the choice of a more energy-efficient dryer difficult. The only breakthrough in efficiency of dryers comes with how efficiently they actually heat the clothes as the motor turns or how efficiently the motor itself operates. You should not worry so much about this aspect of your dryer, unless it has an energy factor rating. Check for the highest energy factor if you want to spend less in operating costs.
  
  

Gas Dryers

• Gas models certainly cost more than their electrical counterparts, but most people benefit more from using a gas dryer than an electric dryer when it comes to money that actually comes out-of-pocket. In most locations, gas costs generally less than electricity, saving money in the long run. Be aware that all dryers have an electric motor, regardless of whether they operate on gas or electricity. The gas is only used to heat up the clothing.
  
  

Automatic Shutoff

• Buy a dryer with a humidity sensor. This reduces the amount of heat exerted on clothes unnecessarily, according to the California Energy Commission. As your dryer heats clothes when they're already dry, you lose money and degrade the quality of your clothes. A dryer with a humidity sensor will automatically shut off when it detects that the clothes you loaded have dried. This is especially useful when you load the dryer with smaller loads.
  
  

Go For the Combo Package

• If you haven't even purchased a washer, try a washer and dryer combo. This incorporates a dryer in your washing machine in order to reduce the amount of space otherwise taken up by a dryer separated from the washer. Combo models use less water and electricity altogether, according to the California Energy Commission.