Is It Normal That The Body Of My ArGo Is Getting Hot When In Use?

Yes, when operating the ArGo, if you come into contact with the heat vent, it may feel warm to the touch since that's where the heater is situated. However, it's important to note that it should never reach temperatures that pose any risk of harm. You might want to consider making slight adjustments in how you grip the ArGo to avoid direct contact with the heat vent region.