Package Quantity:1 | Size:GFA125A The GFA125A propane forced air heater by Dura Heat provides efficient temporary instant heat for all construction and outdoor applications. Built tough to operate in rough conditions, the GFA125A includes infinite heat adjustment and a powerful fan. It features a variable 70K – 125K BTU output, heats up to 3,200 sq. ft. and operates 7 – 10 hours on a single 40 lb propane (LP) cylinder. It’s economical to use and packs all the features you need in a workspace heater. 10 ft. hose and regulator included.