TB-500 Torch Booster Will run up to 5 Shrinkfast Model 975 heat guns at one time or 3 Shrinkfast model 998 heat guns. - Boosts gas pressure to 45 psi at 550 scfh - Gas supply can be 1/4 to 5 psi in a 1 1/2'' pipe - Electric requirement is 208V single phase 30 amp 60 Hz or 230V single phase 30 amp 50 Hz - Attach Shrinkfast regulator to high pressure outlet to set pressure at 15 psi for best performance - Unit dimensions are 28'' W x 20'' T x 24'' D - Unit weight is 285 pounds - No special site environmental preparation required - Ambient temperature should be between 40 - 90 degrees Fahrenheit - Cooling module requires if >90F or >16 hour runtime