Boiler repair often starts with a vague message: “It stopped working,” “the radiators are cold,” or “the pressure keeps changing.” Those descriptions are valid from a homeowner’s perspective, but they are not enough to route a request, estimate urgency, or prepare a technician. A small, human-readable data model can turn the first contact into a structured service record without asking the customer to diagnose the appliance. This article proposes a lightweight intake schema for heating-servic...