What types of microwaves are available and how do they differ?

There are three main types of microwaves: countertop, over-the-range (OTR), and built-in. Countertop microwaves are versatile and easy to move. OTR microwaves double as a range hood and save counter space. Built-in microwaves are installed into cabinetry for a seamless look and can be paired with wall ovens.