A vapor ablation handpiece for assisting a physician perform vapor ablation with a vapor ablation catheter includes a vapor generating element arranged in a coil shape. A mandrel seated in the body of the handpiece affixes the vapor generating element in the coiled arrangement. A voltage difference is supplied across the length of the vapor generating element when activated, causing the vapor generating element to heat liquid therein converting the liquid to vapor. The heated condensable vapor is delivered to a target tissue through the catheter.