Energy Efficient Dishwasher Guide

Guide to Energy-Efficient Dishwashers

People can definitely get by without dishwashers, but let鈥檚 be honest 鈥� who wants to? Not many of us, apparently. In the U.S., two-thirds of all households have a dishwasher.

The question is how to find the best energy-efficient dishwasher? Assuming you鈥檙e replacing an existing dishwasher, you may already know the dishwasher size and maybe even the dishwasher color you鈥檇 like. Those can be easy and also fun choices! When it comes down to energy efficiency, though, the questions can grow fast. Here are some things to get you started. 听

What to look for when buying new energy-efficient dishwashers

Okay, you鈥檝e made the decision to shop for an energy-efficient dishwasher, here鈥檚 what you need to know before you buy your new dishwasher:

Figure out your utility cost. Estimated costs of running a dishwasher are usually found on the product labels. Click here to skip to how to read your EnergyGuide label!听听听听
Look at dishwasher technology options. Today鈥檚 dishwashers have improved beyond just limiting all water usage. The technology in many of today鈥檚 energy-efficient dishwashers also helps make them more energy efficient and water efficient. Soil sensors, for instance, test how dirty the dishes are throughout the cycle,听听says. The result is clean dishes with minimum water and energy use. Water filtration has improved as well. This is what removes food from the wash water, which in turn enables more efficient use of water and detergent during a cycle. More efficient dishwasher jets mean today鈥檚 energy-efficient dishwashers spray detergent and water more accurately, helping to lower overall dishwasher water usage.

Determine your dishwasher water usage.听听says older dishwashers use 10-15 gallons per load. A family of four typically generates an average of 150 loads per year, consuming about 1,800 gallons of water annually. In contrast, a new ENERGY STAR庐 dishwasher will use 5.5 gallons per load. That could yield, Home Water Works says, an annual dishwasher water usage reduction of nearly 1,000 gallons annually. Additional energy cost savings would come from heating less water as well.
Consider ENERGY STAR庐. Dishwashers produced before 1994 use a lot more water, making them far less efficient than today鈥檚 models for dishwasher water usage. An ENERGY STAR庐 dishwasher saves an average of 1,600 gallons of water over its lifetime.听Dishwashers made before 1994 cost an extra $35 a year on utility bills, as compared to听, for instance.听

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How to read a dishwasher鈥檚 EnergyGuide label

Look for the bright yellow label on an appliance to compare energy-efficient dishwashers and how much energy they use. We鈥檝e put together an EnergyGuide label cheat-sheet based off the most commonly used metrics on EnergyGuide labels.

Specific features of the dishwasher model like whether there is a soil sensor or very high dry temperature.
The make, model and the dishwasher鈥檚 capacity size.
Projected cost of running the dishwasher for a year, based on the nation鈥檚 average usage.
Estimated amount of kWh used yearly for the dishwasher.
Cost range to better understand where the dishwasher鈥檚 cost lands in the average usage cost bracket.
An ENERGY STAR庐 sticker signifies that the dishwasher has passed energy efficiency guidelines set by energystar.gov.

Choosing a dishwasher size

If you don鈥檛 know the size of the dishwasher you鈥檙e looking for, you might find yourself accidentally buying a dishwasher that is the wrong size and capacity for your home. To help prevent that, offers some quick and simple ways to measure the dishwasher size you鈥檒l need:

How to measure a dishwasher size:

Measure the doorway in which the dishwasher will be brought in by, or remember where you brought in the old dishwasher before. Your dishwasher鈥檚 size must be smaller than the doorway's widest point.
Measure the dimensions of either your old dishwasher, or the new area your dishwasher will go. Measure the height, width, and depth of the space. Usually a standard dishwasher is a minimum of 34鈥� high, 27鈥� wide, and a depth of 24鈥�.
Write down your measurements to reference in-store when buying a dishwasher. Make sure to bring the tape measure to the store!
Pro tip: keeping a 陆 inch space between the cabinet and the dishwasher on all sides can reduce appliance noise.

Dishwasher energy-saving tips

Owning an energy-efficient dishwasher is the first step toward lowering the full cost of running a dishwasher. Follow these tips to potentially lower your energy costs further.

Only run full loads. Your dishwasher will use the same amount of water and energy each cycle, no matter how many dishes are in the dishwasher. Load a full dishwasher properly to get the most bang for your buck per cycle.
Don鈥檛 rinse your dishes. Today鈥檚 energy-efficient dishwashers don鈥檛 require pre-rinsing so you can save on water use before you even load the dishwasher by avoiding this unnecessary task. Simply scrape food off and you鈥檙e good to go.
Consider air-drying rather than running the heat cycle on your dishwasher. Let Mother Nature do some of the work for you.
Load your dishwasher correctly. Yes, there is a proper way to load a dishwasher to ensure maximum efficiency. If you want to learn, check out our video below on how to properly load your dishwasher!

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