
Tunnels heat from 75-360 degrees F in 15 minutes, cutting the heat-up 
time by almost 30%. A burner design optimizes heat distribution while 
minimizing emissions.  The burner utilizes a patent-pending burner box 
design to ensure even heat distribution and maximize burn efficiency.  
Provides minimal graphic distortion, consistent bull’s-eyes and a tight,
 durable wrap. Uses Douglas’ proprietary laminar airflow to precisely 
balance the tunnel’s heated air. 
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