Since I have seen these used to shrink heat shrinkable tubing for weather proofing wiring and coax, I'm posting the alert just released....
ASHINGTON, D.C. - The U.S. Consumer Product Safety Commission, in cooperation with the firm named below, today announced a voluntary recall of the following consumer product. Consumers should stop using recalled products immediately unless otherwise instructed.

Name of Product: Heat Guns

Units: About 300,000

Manufacturer: Wagner Spray Tech Corp., of Minneapolis, Minn.

Hazard: An electrical component failure inside the heat guns can cause them to continue to produce heat after the power switch is turned off. This can melt the heat gun's plastic exterior, causing a burn if the heat gun is touched and ignite nearby combustibles, posing fire and burn hazards.

Incidents/Injuries: The firm has received nine reports of the heat guns overheating. No injuries or property damage have been reported.

Description: The recalled heat guns emit hot air and are used for paint and flooring removal, defrosting freezers and water lines, bending plastic, hobbies, etc. Recalled models include the Milwaukee Heat Gun MHT3300, ACE HT3500 Heat Gun, and the Wagner Heat Gun HT3500. The heat gun's name and model number are located on a black label on the bottom of the heat gun's barrel. The heat guns are black or yellow plastic and measure about 10 inches long, 8 inches high and 3 inches wide.

Sold at: Major and independent hardware and home improvement stores nationwide from November 2004 through April 2009 for about $40.

Manufactured in: China

Remedy: Consumers should immediately stop using the recalled heat guns and contact Wagner for a free replacement product.

Consumer Contact: For additional information, contact Wagner toll-free at (888) 925-6244 between 8 a.m. and 4:30 p.m. CT Monday through Friday, or visit the firm's Web site at www.wagnerspraytech.com

To see this recall on CPSC's web site, including pictures of the recalled products, please go to:
http://www.cpsc.gov/cpscpub/prerel/prhtml09/09243.html