DRAVO (Powell Duffryn Heating Co.) Models 40-50, 75-100 and 125-150 Counterflo Heaters (Oil Fired). Installation, Operation and Service Instructions with a Wiring Schematic.
Model: 40-50
This page displays all the content on the website associated with the '40-50' model. Numeric models include all prefixes, such as 'Number', 'Mark', 'Size' etc.