Here are the best propane garage heaters available for sale online. This Heat Hog Indoor/Outdoor Propane Portable Space Heater has 9,000 BTU (British thermal units) of power and has heating ...

Kerosene heaters have similar risks to propane-gas garage heaters -- namely, they expel toxic fumes and require a ventilation solution. That said, if you can provide adequate ventilation ...

Some high-end electric garage heaters run well over $1,000, but you'll more typically find them from $150 to around $500.