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Used in all types of HVAC systems to protect coils from dirt, Warehousing, manufacturing facilities, vehicle repair shops, commercial buildings, drive sheds, welding shops, Energy efficiency for budget sensitive projects, In line tube heater, Optional 90<DEG/> and 180<DEG/> elbow kits, Tube kits for SEM burner kits<MDASH/>Builder's Budget Series tube heaters, Refer to SEM burner kits for further information, SEM 20 tube kit stand alone: 60,000<ENDASH/>80,000 Btuh burner kit, SEM 30 tube kit stand alone: 80,000<ENDASH/>110,000<ENDASH/>130,000 Btuh burner, SEM 40 tube kit stand alone: 110,000<ENDASH/>130,000<ENDASH/>155,000 Btuh burner
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