CWT Natural Gas Dry Line Heaters are a revolutionary approach of using low pressure and low temperature steam to more quickly, more economically and with less greenhouse gas emissions to heat natural gas at town border stations or other facilities. Millivolt controls are supplied by power from thermopiles installed by a standing pilot meaning no power or generators need to be installed on location. The low volume of glycol, the system operating under a vacuum, and the familiar off-the shelf safety and fuel supply components lead to ease of use, inspection and repair.