A technician specializing in heating and boiling systems, often an HVAC technician, is responsible for installing, maintaining, and repairing heating, ventilation, and air conditioning systems, including boilers and related equipment. Their duties involve inspecting, diagnosing, troubleshooting, and repairing various components of these systems to ensure optimal performance and safety. They may also be involved in routine maintenance, system upgrades, and ensuring compliance with safety regulations.