Chimney Balloon fireplace dampers are durable inflatable bladders that are installed into fireplaces and wood burning units to stop cold draft, chimney odors, bugs, bats, and other unwanted entries. Chimney Balloons have been used widely in western Europe since 1989 and were introduced in North America in 2005. The Smoke Pencil is a non-toxic smoke puffer tool that energy raters, HVAC technicians, Lab workers, and airline mechanics use to test an area for air leakage. The Smoke Pencil operates by electronically heating a glycol and water solution producing a visible vapor that allows the user to easily see air currents that move the vapor.