The manufacturer advises against using these models on a wooden deck, as they are not insulated well enough to prevent the deck from becoming overheated and possibly scorching over time.
If you're searching for a unique way to heat your patio or deck then you may want to consider a chimenea. The best way to describe a chimenea is as an unusual cross between a fire pit and an outdoor fireplace. Most possess distinctive round, bulbous bodies and tapered vertical chimneys that easily capture the eye. In terms of function, the main difference between a chimenea and other outdoor heating accessories results from the impressive chimney. Rather than leave you to deal with the unpleasant smoke that can sometimes result from a wood fire, the chimney atop a chimenea directs smoke up and away from you and your guests.