Similarities
The Dyson DC07 was the seventh dual-cyclone model vacuum cleaner, but it was the first with the company's Root8Cyclone suction technology. This technology gained its name by creating eight mini-cyclones within the main tube to separate different types and sizes of unwanted particles. The DC14 also features this technology as well as filters built to last for the lifetime of the vacuum. Both of these vacuums are about 20 lbs. and come with a range of attachments for getting into tough spots. DC07s and DC14s go by either the "Animal" or "All-Floors" name, which includes differentiations in colors and some capabilities. Both also feature a dial at the bottom of the vacuum that turns the brush bar on or off, helping those who frequently move from bare floors to carpeting.
Chief Differences
The DC07 has a 17-foot reversible wand for a main attachment tube, similar to DC24 models, but the DC14s have a more technologically advanced telescopic wand, which is ready for use as soon as you pull it from its holder. The DC07's reversible wand must be set up with several more steps. The DC14 also features a wider main channel mouth at 14 inches than the DC07's 13 inches, helping you suck up larger debris.
Other Differences
Dyson claims its DC14 produces about 50 percent more suction power than previous models like the DC07. It also installed a filter on the DC14 that can easily be replaced from above as well as a bigger handle for easier navigation.
Conclusion
Since the DC07 has the same style and many of the same features as the DC14, it is sure to be the bargain for those who use their vacuums regularly but not daily since it it will suction at a secondhand price. The DC14, though more powerful and easier to use, is more expensive due primarily to its more modern technology. It costs upwards of $260 retail in January 2011.