Profile: Sunrise Energy Systems, Inc. specializes in the leasing, sales & service of temporary heating & cooling equipment such as construction heaters, ground heaters, air conditioners and evaporative / cooling equipment. The brands we offer include Heatwagon™, Gound Heater™ and Waycool™. The model S405 construction heater features instant electronic ignition and quick changeover from either propane or natural gas. The S405 is thermostatically controlled, simple and safe with 100 percent shutoff operation, minimum maintenance and is approved for unattended operation. The S405 heater has tough steel construction and comes with a lifting loop.