Answer
Uruguayan homes, including those in Montevideo, usually do not have central heating. This is an important difference from the familiar Russian model, where heating is often seen as a basic building-wide service.
Winter comfort therefore depends on the particular property: air conditioning with heating, electric panels, a gas heater, a stove, a boiler, windows, humidity, and insulation. An apartment with low rent can prove expensive in the colder months.
Before settling in, find out how the rooms are actually heated, ask for winter utility bills, and assess whether the bedrooms can be heated without overloading the electrical system. Warm clothing and a blanket help, but they do not replace a reliable heating system, dry housing, functioning windows, and adequate ventilation in winter.