Washing machines consume large amounts of energy and water, so the key to selecting the right one is to purchase the most energy efficient model that is appropriate for your lifestyle and space. When we speak about lifestyle, we think about how often we actually use these appliances and what we use them for. In this case, what clothes or items we actually wash.

Now, when you want to use your washer and dryer often, a stainless-steel tub would be best. Those who wash less frequently will probably do fine with porcelain-coated steel or high-grade plastic. You can get a stacking washer-dryer unit if you don't have much space. Remember also that your dryer's capacity should match the size of your washer.

Think about what you will use them for. If your laundry includes a variety of fabrics and levels of dirtiness, choose a machine that offers specialty cycles such as delicate and extra soak, as well as one for a second rinse. For loads of different sizes, you want multiple water-level settings. Some machines can boost water temperature to sanitize a load. Other items to consider are automatic temperature regulators; a must in cold climates, they ensure that wash water comes in at a constant temperature for the setting.

There are two styles of washers: front-load, which gives the best energy efficiency, and top-load, which is the most common type. Top-load washers allow the user to put in and retrieve laundry from the machine without bending over. These models must be set side-by-side with the dryer. Top-load models cost less, although it will prove to be less energy efficient in the long run.

The front-load machine is gaining in popularity because of its energy efficiency. These models use only up to one-half of the water that is usually needed for a top-load machine. This also means less time and energy used for heating. And, because it spins faster, clothes come out needing less time in the dryer. They are usually more expensive than top-load washing machines, however, and you may need to buy special detergent for some models.

When selecting a dryer, always remember that the capacity you choose should match that of your washer's. A washer with a 3.5-cubic-foot capacity, for instance, requires a 7-cubic-foot dryer capacity. You can always buy a stacking model that can fit in a closet if space is a problem.

Dryers are powered by either gas or electricity, with gas being a bit more expensive to get but the most economical and efficient in the long run. Dryers must have at least one option for an automatic drying cycle, although the better models now have moisture sensors which allow to machine to shut down once the moisture level of the laundry drops below a certain point. Other options include a cool-down cycle that keeps garments from wrinkling, a damp-dry cycle that prepares clothes for ironing.

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