Best Gas Patio HeatersBest Overall:Best Value: ​​ Commercial-Level Heating: ​​ Most Versatile: ​​ Best Directional Heating:Home patio heaters are virtually identical to the commercial versions. Utah has a plethora of propane or gas patio heaters everywhere. Here are the best gas patio heaters to buy now. Pros and Cons of Propane GasDuring his long tenure as Popular Mechanics’ senior test editor, Roy Berendsohn tested a number of space heaters, including patio heaters, and provided his expert advice on propane versus electric heaters. Propane-powered or natural gas patio heaters should only be used in open outdoor spaces that provide proper ventilation and clearance.