Modern warmer making systems being with advantage used now today had been developed in the second half of the fifties in Switzerland , where they had been applied for making warmer the storage silos in sugar factories, mills and water reservoirs. The system of complementary thermal insulating material in the form of further lager in the basic masonry generlly expanded for the first time in the half of the seventies, i.e. in the period of the first world energetic crisis (en)