The invention relates to a method for melting vitrifiable materials in a low-capacity oven, wherein at least part of the melting energy is supplied by two oxy-burners projecting into the melting chamber through the upstream wall and arranged either side of the vertical plane comprising the longitudinal axis of the melting chamber, in such a way as to create two flames, the respective injection axes thereof crossing at a distance from the upstream wall, between 1/3 and 3/4 of the length L of the melting chamber.