The present invention discloses a portable intravenous fluid heating system comprising (a) a metallic heated conduit for warming IV fluids passed therethrough at a continuously regulated normal body temperature and transporting said IV fluids and, (b) a controller unit including a power source operative to apply an electric potential across said conduit. The conduit comprises a wall made of a metallic material capable of producing resistance heat by the passage of electric current, such that said IV fluid is heated by the contact with said wall.