IDH500 QR Available in Oil/Diesel

Not only are the IDH400QR & IDH500QR the most efficient, durable and reliable Indirect Fired heaters in this popular class, they also boast one of the quietest operating dB noise levels available. Combined with standard recirculation, fully insulated jacket, High Static Pressure, adaptable duct attachment, stainless steel multi-pass heat exchanger, 3-trials for ignition and EZ Ball Valve switchover features, the IDHQR Series is designed and engineered to provide excellent fuel savings and trouble-free operation in the harshest environments.