An engineer asked a question about using variable speed pumps for air temperature control in lieu of a two-way control valve. The question clearly makes you …
New Employee Training Pt. 1 – Mechanical Hub
In this informative article published by Mechanical Hub, R.L. Deppmann’s Norm Hall shares why you can’t afford not to invest in new employee training. According …
Hydronic Primary-Secondary Piping – How Important are the Two Close Tees?
Every year we get questions about the importance of primary-secondary piping rules around boilers and coils. Recently, I also received a call about using a …
Making Smart Water Heater Choices
Introducing the New R. L. Deppmann Plumbing Website Looking to learn more about the differences in commercial and institutional water heater types and manufacturers? We …
Steam Water Heaters – What Steam Pressure Do You Use
Indirect steam water heaters for domestic water use are often the solution engineers will choose in institutional or industrial buildings. They require no venting. They …
Steam Water Heaters – Storage Tank, Buffer Tank, or No Tank
The engineer contacts us for assistance in selecting an indirect steam source water heater. Do you need a lot of storage, a small amount of …
Solving Minimum Flow in a Primary Variable System (Part 3)
The engineer is aware of the importance of minimum flow to the pumps in hydronic systems. The R. L. Deppmann Monday Morning Minutes Part 1 …
Minimum Flow in Variable Speed Pumps for Building Hydronic HVAC Systems (Part 2)
The HVAC engineer designing a hydronic system understands the need to protect the circulating pumps from a dead head or no flow condition. This week, …
Getting the Best Life Expectancy from your Bell & Gossett Base Mounted Pumps
You have invested in the best pump in the world, Bell & Gossett. Think of this purchase as purchasing a new car. You would make …
Deppmann Volunteers to Improve Groundwater Supply
Improving Water Quality: Capturing Stormwater Runoff in Partnership with the Xylem Watermark Program Burns Park Rain Garden Clean-Up Ann Arbor, Michigan Sunday, August 8, 2021 …