Amazon Basics Outdoor Propane Patio Heater with Wheels.
I like the Amazon Basics propane patio heater because it’s straightforward to assemble (I got it done in about 15 minutes) and it still delivers real heat. It pushes up to 46,000 BTUs and can cover about 300 sq ft, plus the wheeled base makes it easy to reposition on the patio.
Pros
+Assembles quickly with clearly labeled hardware and easy instructions
+Up to 46,000 BTUs with roughly 300 sq ft coverage
+Wheeled base makes it easy to move on concrete/paved surfaces
+Chain helps secure the propane tank during movement
+Powder-coated finish improves resistance to rust and corrosion
Cons
-Rolling over deck boards or segmented surfaces may be more challenging
-Requires a propane tank (more upkeep than plug-in electric)