Related illustrations

0854

Inspecting pressure relief valves

· p. 144

The illustration compares seven improper boiler pressure-relief valve conditions with a correct installation marked by a green check. Red prohibition symbols identify a missing discharge extension, a valve between the bo

0972

3-sided chimneys

· p. 166

Two cross sections depict three-sided masonry chimneys retrofitted against existing exterior walls, one with brick veneer and one with siding over wood framing. The sections show the chimney and flue liner beside wall sh

0980

Incomplete liner

· p. 168

A sectional drawing shows a brick masonry chimney with a clay tile flue liner and a sloped chimney cap. Gaps interrupt both sides of the liner near the upper portion of the chimney, where nails support the upper liner se