R & F - Variable Temperature Heat Gun - R and F Variable Temperature Heat Guns are great hot air guns for a wide range of projects. R and F Heat Guns are a durable and versatile tool, it can be used with a variety of mediums. The R and F Hot Air Gun features two fan speeds and a variable temperature setting for versatility in heating the painting surface. Because of these features, this hot air gun is particularly good for use with encaustic paints. R and F Heat Guns can be used with additional nozzles that are sold separately and offer a wider range on heat application. Circle and fan nozzles are available.