9,000 BTU Radiant Propane Heater (Massachusetts/Canada) VersionThis patented radiant 4000 9000 BTU Liquid Propane heater connects directly to a 1 lb. cylinder and is the perfect solution for heating spaces up to 225 sq. ft. The expertly engineered size to BTU ratio is augmented with a fold down handle to give this heater maximum output while retaining a minimalistic footprint. A swivel regulator gives you the ability to adapt usage from a disposable cylinder to a remote gas supply with the purchase of a hose and