A look back from this year’s most popular articles. Click on a photo above for the description and link to the Top 10 most-read stories on www.pmengineer.com.
pme’s Top 10 most-read articles of 2018
These stories got the most hits on www.pmengineer.com over the past year.

The Do’s & Don’ts of Hydronic System Design from John Siegenthaler
This instructional article from 2000 is still making the rounds on the hydronic circuit from John Siegenthaler. Read More>>

10 Things to avoid when designing hydronic heating systems from John Siegenthaler
Another great article from John Siegenthaler talks about the little nuances that shouldn’t be ignored when designing and installing a hydronic heating system. Read More>>

Back to Basics: Sprinkler Piping Materials from Julius Ballanco
Did you know: The most commonly used steel pipe for sprinkler systems is black steel pipe? Read More>>

The misunderstood barometric damper from Ray Wohlfarth
One of the most misunderstood components inside a boiler room is the barometric damper, which is used to control the draft inside a boiler. Read More>>

Water Hammer Arresters: Sizing and Placement
Although this article is from 2005, readers are still looking for the right way to size a water hammer arrester. Read More>>

Tips on properly sizing the combustion air openings from Ray Wohlfarth
Ray Wohlfarth talks about his time as a young apprentice working with a journeyman technician in a boiler room, explaining how to determine the combustion air required for a boiler room. Read More>>

Back to Basics: Venting for Gas Fired Boilers
Most professionals with a strong plumbing background are pretty confident about the wet side of a boiler installation. But it’s just as important to fully understand the importance of venting combustion by-products outdoors. Read More>>

How to properly size a domestic water pressure booster system from Paul Larson
Few people ever think about how the water gets to the top floors of high-rise buildings for everyday living purposes. Read More>>

Designing plumbing for commercial kitchens
The design of a commercial kitchen is arguably the single most demanding task encountered by a plumbing engineer. Read More>>

The facts about jockey pumps
What is a jockey pump and why does it carry that title? Read More>>