A room heater is a baseboard heater that has one or more horizontal heating elements. And it’s controlled by a thermostat. Baseboard heaters are mounted at the base of a room wall. Air is drawn in through the bottom and heated by the electric elements. The warm air then rises into the room. The electric elements are often shaped like metal fins, and some are filled with fluid to maximize their heat retention. Often several units are installed around the perimeter of a room. If your room heater is not heating, it has a shortage of heat or gas filling problem. Vblue has an expert room heater Gas filling Technician which is well known for how to check the heat and proper filling.