An example of an energy efficient device includes an energy efficient light bulb.
The lower the amount of fuel the device uses to do a specific task the more efficient it is.
It's a device that can convert energy of one form into another efficiently. Like a lightbulb for example, an energy efficient one would use less electricity but still produce as much light as one that is less efficient. It's a measure of what you get out versus what you put in.
It's a device that can convert energy of one form into another efficiently. Like a lightbulb for example, an energy efficient one would use less electricity but still produce as much light as one that is less efficient. It's a measure of what you get out versus what you put in.
Thermostatic Expansion Valve (TXV, TEV). Any high efficient system requires one.
To invite more efficient device, reduction in cost for products, easy maintanence and weights less device......etc......
Energy efficient devices need not look much different to those that aren't. It really depends what device you are talking about, though.
carburetter
An electric heater ( the only known 100% efficient device ).
It depends on how efficient sed transportation device is
Yes, it is, as all the water that enters it, quickly flows out.
Leave the jar inside the refrigerator or freezer at least one hour for An obvious example of an automatic timer as a home energy saving device is a pool.