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Direct gas fired heating / Air Handler


The SDM is designed for industrial and commercial processes and is available with a wide variety of options. It features top-notch build quality and compact construction. The direct-fired burner has a maximum thermal efficiency of 92%—still the most efficient type of gas heating on the market today. With a high turndown ratio and variable airflow profile plates that can reduce airflow by up to 30%, the SDM offers unparalleled temperature control. It’s suitable for operation with propane or natural gas.

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