http://www.firepitsoutdoors.com/Commercial-Patio-Heaters All of our commercial patio heaters are designed to last a lifetime but if you want a worry free finish get the commercial stainless steel patio heaters. Commercial patio heaters are commercial grade but designed for residential use. Commercial patio heaters like all of our patio heaters that use a propane tank the tank is beautifully hidden inside the base.