Chows can adapt to a variety of homes, from palaces to apartments. But they should always live indoors with their people, not stuck out in a backyard or kennel. They don't tolerate heat well, so keep them indoors when the weather is sweltering.
Like any dog, an adult Chow Chow needs daily exercise to stay healthy and happy, but not much — he'll be satisfied with a couple of 15-minute walks daily or one longer walk.
A Chow Chow is a homebody who's not prone to wandering, but you'll still want a secure fence if you've got a yard; it will protect him from traffic and prevent strangers from approaching him when you're not around to supervise.
Chows are easily housetrained, but crate training is strongly recommended. Crates make housetraining easier and keep your Chow from chewing things while you're away. The crate is a tool, not a jail, however, so don't keep your Chow locked up in it for long periods. The best place for a Chow is with you.
Chows are more than capable of learning anything you can teach, and a verbal correction is usually all that's required to set them straight. No dog should ever be hit, but it's especially counterproductive with this breed. The fiercely proud and independent Chow will never respond to physical abuse. Earn his respect in puppyhood with firm consistency, and you won't have any problem training him. But if you let the cute pup have his way all the time and then try to train him, you're sure to face problems.