Rowing machines are not only good for aerobics but are great for those who want to work on all their body muscle groups. Unlike other clunky gym equipment, most rowing machines can easily fold or stand upright for easy storage, making them very suitable for home use. There are two main types of rowing machines which are water rowers and air rowers. However, in this piece we will focus on water rowers. One of the best-known brands of water rowing machine is A1 Home-Rowing Machine.