Torch Head Flame Type Pencil For Fuel Type Propane Soft Solder Size (Propane Maximum) 1 in Silver Braze Size (Propane Maximum) 1 in Soft Solder Size (MAP-Pro Maximum) 1 in Silver Braze Size (MAP-Pro Maximum) 1 in Heating Capacity (MAP-Pro) 2 555 BtuH Heating Capacity (Propane) 2 555 BtuH Product Type Hand Torch Torch Series Light line Maximum Flame Temperature (MAP-Pro) 2 010 Degrees F Maximum Flame Temperature (Propane) 3 572 Degrees F