If you are thinking about buying a convection microwave oven, you need to think about what you hope to achieve from your purchase. You will need to know how you want to use the appliance, where you plan to put it, how much you can afford, and if you have any design considerations.
First, what do you plan to cook? If you just reheat leftovers, then a standard microwave is all you need. Other cooking methods will require a higher-end model. If you want to bake, then you will want a fan for distributing air across your food. If indoor grilling is your goal, then be sure to pick one that offers this feature. Know what the wattage requirements are for the recipes you plan to cook so that you get a unit that offers enough power.
Where do you want to place your purchase? You will find countertop, over-the-range, and built-in units. Be sure to measure the area so that you get a model that will fit into your space. Also, check that there is enough room for the door to clear when opened.
Do you want your new appliance to coordinate with your kitchen? This may limit your selection as not all are offered in various colors. Stainless steel is a popular look, but you may want a different color if you want everything in your kitchen to match, and you don't currently have stainless steel. Also, keep in mind that colors may differ by manufacturer. A shade of white that looks great in the store might not look so good when paired up with a different variation of white on your refrigerator.
How much money can you afford to spend? You will find models at varying price points from not much more than a standard unit to professional quality. Some of the lower-priced models do a good job if you aren't concerned with having a restaurant-quality kitchen.
Before shopping for a new convection microwave oven, make sure you know your answers to the above points. Then, you should be able to make the perfect purchase for you.
Source : http://ezinearticles.com/?Before-You-Buy-a-Convection-Microwave-Oven&id=4773303