REMINGTON BATTERY FORCED AIR HEATER - 60000 BTU"This powerful heater delivers up to 60,000 BTU of output and is designed for versatile userunning on either battery or propane (LP) fuel. Its suitable for large spaces (up to approx. 1,500 sq ft) and is ideal for job sites, workshops, seasonal buildings, or remote areas. Key Features Dual power compatibility: Operates with most major lithium batteries (battery not included) or via AC cord. 60,000 BTU output: High capacity heating for larger interiors