The heat gun obviously wins this round. Master Appliance heat guns can reach temperatures of up to 1,000 Fahrenheit. A handheld blow dryer might reach 131 degrees Fahrenheit. A hair dryer gets hot enough to burn skin, but not hot enough to complete serious tasks like striping paint and removing serious adhesives.Round Two – Ability to finish a job quickly. Sorry, hair dryer, round two goes to the heat gun, too.A lot of people will try to use a hair dryer to shrink wrap plastics. Eventually, they all give up and switch to the heat gun that can finish the job in a fraction of the time. Round Three – Ability to adjust temperature. Blow dryers have limited heat settings.orry, hair dryer, round two goes to the heat gun, too. A lot of people will try to use a hair dryer to shrink wrap plastics. Eventually, they all give up and switch to the heat gun that can finish the job in a fraction of the time. Round Three – Ability to adjust temperature.