Vogelzang’The Colonial’ Fireplace Insert. Northern Tool Item# 172922. With the Vogelzang “The Colonial” Fireplace Insert, you can convert your masonry fireplace into a functional, high-efficient heat source. This airtight, EPA-certified insert features an adjustable-speed blower, 3/16in. Reinforced plate steel, cast iron feed door with ceramic glass window and a hearth…