This 40,000 BTU portable forced air propane heater features electronic ignition, variable heat settings and state-of-the-art safety features, which is no surprise since it’s made by Remington. It’s a great solution for construction sites, workshops, garages, warehouses and barns. If you can think of other spaces up to 1,000 square feet. Heat things up with Remington. Thermosense safety labelContinuous electronic ignition.Enclosed gas controls heavy-duty steel construction.Over-heat shut-off. .