XL18i Two-Stage Cooling in One Impressive System

As one of the few manufacturers that builds their own compressions, Trane offers products that are elevated to a new level. This two-stage system allows for high speed on those sweltering hot days and low speed for less extreme temperatures, increasing efficiency and comfort. As an added bonus, the XL18i borrows from the top-of-the-line XV20i, minus its variable speed compressor, making it a great mid-line choice.