Conducting heat in the house is an equally important task than moisturizing air. In the winter, due to insulation of the attic ceiling and other ceilings, it is possible to significantly reduce the costs of heating the house. According to the estimates, about 15% of heat goes through the attic. This is significant heat loss, because for heating will have to be burned by an order of magnitude larger than gas or other fuel. In heating, use the expansion tanks Reflex.