You can purchase or rent a dishwasher online to make the buying process a lot quicker. Instead of shopping around you can hop online and search under euromaid if you are looking for shops listed in your area. You will be able to view a number of stores that all offer great deals. You can view all available models and get reviews on each of them. They will explain what functions each of them has and that will give you a full idea of what functions they can perform. In most cases it will have a function for a light medium or heavy load. They also have variable cycles that allow you to wash items in a specific ways. You will often end up items that are too big to fit on a single shelf, so finding a model that has adjustable racks is also important. If you have big pots and pans that are a pain to clean by hand then this is the perfect option for you to consider. A stainless steel interior is a must for any dishwasher. They keep the interior clean and allows the washer to heat up to much higher temperatures. The hotter the water, the better it will clean your dirty dishes and the more water efficient it will be. You may consider a food grinding function that breaks down all the bigger food leftovers so they can fit through the filter. That makes your job easier when packing the washer, because you don't have to pre-rinse them. The control panels should be easy to use, and allows you to choose how and when you want to wash your dishes. Delayed setting will wash the dishes before you get home or during the night so they are ready by the time you get home.
Other than that you should look for greener dishwashers with child safety features, and reduced water and power usage to save on utilities.