<https://www.portableairgroup.com/product/indirect-fire-heaters/heatwagon/IX1500#product>
<http://schema.org/description>
"CSA approved\r\n \tQuick Change fuel supply – Dual fuel selector valve\r\n \tCompact Design – uses less space on the job site and during the off season\r\n \t3 safety shut down controls (High limit switch, Air switch, and Flame Rod)\r\n \tForklift Accessible side and ends\r\n \tMultiple power configurations options\r\n \t2- stage remote thermostat control\r\n \tStainless steel patented heat exchanger\r\n \tStainless steel Burner\r\n \t90% efficiency"
<https://www.portableairgroup.com/product/indirect-fire-heaters/heatwagon/IX1500>