Please click on a configuration picture below, for your information and drawings:
Preferred module airflow / venting configurations 20 oF 90 oF Rise & SS efficiency 80 %
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Permissible module airflow / venting configurations 20 oF to 60 oF Rise & SS efficiency 80 %
(All Airflow and Vent Discharge Configurations are shown looking at the gas train & draft inducer)