In which the authors take out the original unit designed specifically for K-12 and see how things have changed in the decades since it first went to school. Time and technology have solved some problems, yet an old-fashioned issue like ease of maintenance can still pose headaches (or backaches). All in all, this update about a well-known design option deserves a permanent spot in your three-ring reference binder.
From a missing pipe hanger three floors down to steam traps past their prime, these stories show how steam system problems can originate inside the boiler room or far beyond it. Read more in February issue.