The company has released two models of two-stage gas-fired infrared tube heaters. Series TA/TX/TXR is designed for heavy-duty commercial and industrial use and is available in rates from 40,000 to 220,000 Btuh, in lengths from 10 to 70 feet, and in natural gas or LPG. The Series LT/LTX/LTXR two-stage
infrared heater is designed for low clearance applications and is available in rates from 40,000 to 100,000 Btuh, lengths from 30 to 50 ft, in natural gas or LPG.
— Superior Radiant
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