ASHLAND CITY, Tenn. (September 25, 2019) – A. O. Smith, a leading water heater manufacturer, has added depth to its diverse product portfolio with the introduction of the ProLine® Electric Tankless family for commercial, residential and point-of-use applications.
The purpose of this bulletin is to show installers how to properly connect draft
hoods to single- and double-wall (Type B) vent pipe. These instructions cover
3-inch, 4-inch, and combination draft hood sizes.