Abstract: A rooftop access for an HVAC sheet metal enclosure is provided by cutting a T-shaped opening in a wall of the enclosure and inserting a frame with a door and a peripheral flange, the upper portion of which is inserted through the slot at the top of the opening. The flange upper portion includes a flashing, projecting over the frame below.

Abstract: An immediate slow burning granular composite for firing up fireplace logs and kindling wood. The composite is wrapped in a cellophane film and packaged in an aluminum tray to be placed beneath the grate of the fireplace. Upon lighting the composite, a constantly increasing flame ensues, which ignites the logs and kindling wood within the grate. One pound of the composite burns for approximately one hour. The composite consists of wood by-products, hydrocarbons, liquid fuel, scent producing materials, and hydrocarbon impregnated particulate ammonium nitrate.