Today on Weekly Boiler Tips, learn how roof terminations on gas train regulator vents are more than just code—they keep your boiler running right. In this concise tutorial, you’ll see: how rain and critters can jam your diaphragm and change your set point; the choice between a 90° “over and down” elbow or a mushroom cap to block water and insects; why adding a screen and pipe clamp is a must—mushroom cap or not; and the no-brainer rule: never tie vent lines together on the roof. Safety notice: Always consult experts for complex repairs. Weekly Boiler Tips are compiled by the knowledgeable and remarkably prolific content creators at WARE, a family owned, third-generation, 69-year-old commercial and industrial boiler rental and service firm based in Louisville KY. You can learn all about this and more at WARE’s Boiler University.