• Blog
  • Locate a Wholesaler
  • Careers
  • Contact
R. L. Deppmann Logo
  • Products
    • Overview
    • Pumps and Accessories
    • Boilers and Water Heaters
      • Water Heater Stock
      • Boiler Stock
    • Hydronic Systems
    • Plumbing Systems
    • Steam and Condensate
    • Variable Frequency Drives (VFDs)
    • Glycol Solutions
    • Snowmelt Designs
  • System Design
    • Overview
    • Project Gallery
    • Selection and Design Tools
  • Water Solutions
  • Contractors
  • Service & Parts
    • Overview
    • Startup and Warranty
    • Parts
    • Service and Maintenance
  • Education
    • Overview
    • Basic Hydronic Blog Articles
    • Training Opportunities
    • Factory Classes
  • About RLD
    • Overview
    • Team Deppmann
    • R.L. Deppmann Locations
    • Careers
    • Community Engagement
    • Press and News
ECM Optional Motor
ECM Optional Motor

How Can an ECM Smart Pump Save Energy?

RL Deppmann April 28, 2025Monday Morning Minutes, Pumps, ECM, Variable Speed, ECM

Pumps with ECM or Electronically Commutated Motors have the ability to vary the speed of the pump built into the motor. Can you control the …

Read More
PumpsECMvariable speed

Happy Easter from R.L. Deppmann!

RL Deppmann April 21, 2025Monday Morning Minutes

Wishing you a joyful Easter, from all of us at R.L. Deppmann.                

hydronic pump
hydronic pump

Create a New Variable Speed Pump Control Curve after Hydronic Balancing

RL Deppmann April 14, 2025Pumps, Variable Speed, Commissioning and Balance, Commissioning and Balance, Pumps, Monday Morning Minutes

This week, the R. L. Deppmann Monday Morning Minutes will explain how to show multiple speeds on a pump curve and how to determine what …

Read More
monday morning minutescommissioning and balancePumpsvariable speed
hydronic pump
hydronic pump

Hydronic Pump Balance Using the Variable Speed Drive (VFD) with No Balance Valve on Pump

RL Deppmann April 7, 2025Pumps, Variable Speed, Commissioning and Balance, Commissioning and Balance, Pumps, Monday Morning Minutes

When there is no hydronic pump discharge balance valve, the variable frequency drive (VFD) is an important part of the balance procedure. How does the …

Read More
monday morning minutescommissioning and balancePumpsvariable speed

Hydronic Pump Balance using the Variable Speed Drive (VFD) with Assistance from a Triple Duty Valve

RL Deppmann March 31, 2025Pumps, Variable Speed, Commissioning and Balance, Commissioning and Balance, Pumps, Monday Morning Minutes

Most centrifugal pumps in heating and cooling systems have some oversizing in the head calculation. Once the HVAC hydronic system is proportionally balanced per ASHRAE …

Read More
variable speedmonday morning minutescommissioning and balancePumps
Bell & Gossett Impeller
Bell & Gossett Impeller

Variable Speed Hydronic Pump Selection – Should I Specify the Largest Impeller?

RL Deppmann March 24, 2025Variable Speed, Selection and Specification, Monday Morning Minutes, Pumps

We recently received an inquiry from an engineering firm deciding whether to change their pump schedule. They currently select the pumps at design capacity and …

Read More
monday morning minutesselection and specificationPumpsvariable speed

Permanent Magnet (PMAC) Motors & Electrically Commutated (ECM) Motors in Hydronic Systems (Part 3 of 3)

RL Deppmann March 17, 2025Pumps, Hydronic Design, Monday Morning Minutes

You understand the differences between premium efficiency (IE3) motors and PMAC or ECM motors (IE4&5). You understand the cost implications of both styles of motors. …

Read More
HydronicsPumpshydronic systems
IEC motor efficiency graph
IEC motor efficiency graph

Permanent Magnet (PMAC) Motors & Electronically Commutated (ECM) Motors in Hydronic Systems (Part 2 of 3)

RL Deppmann March 10, 2025Monday Morning Minutes, Pumps, Hydronic Design

Can I and should I specify permanent magnet motors (PMAC) on my hydronic system pumps? The last R. L. Deppmann Monday Morning Minutes showed the …

Read More
HydronicsPumpsNorm Hallhydronic systems
IEC motor efficiency graph
IEC motor efficiency graph

Permanent Magnet (PMAC) Motors & Electronically Commutated (ECM) Motors in Hydronic Systems (Part 1)

RL Deppmann March 3, 2025ECM, Monday Morning Minutes, Pumps

Hydronic system pumps and other HVAC and plumbing equipment will often have a variety of motor choices to specify. One of the newer additions to …

Read More
hydronic systemHydronicsPumpsMotorsECMhydronic systems
aerco boilers
aerco boilers

Condensing Boiler Venting Material (Part 2)

RL Deppmann February 24, 2025Boilers, Condensing, Venting, Venting, Monday Morning Minutes

Proper venting of hydronic condensing boilers is critical for the safety of occupants and the successful operation of the heating plant. Part one of this two-part series …

Read More
PVCCPVCHeat ExchangersBoilersCondensingNorm HallVENT
  • Page 2 of 59
  • ←
  • 1
  • 2
  • 3
  • ...
  • 59
  • →

About Us

Providing quality products and outstanding service to customers in Northern Ohio & Michigan since 1927.
ImageImage

Call Us: 800.589.6120

Navigation

  • Products
  • System Design
  • Contractors
  • Service & Parts
  • Education
  • About RLD
  • Careers

Connect

Connect with us on LinkedIn
Subscribe on YouTube
Cleveland | Detroit | Grand Rapids | Saginaw
Copyright ©2017 R.L. Deppmann. All Rights Reserved
  • Products
    • Overview
    • Pumps and Accessories
    • Boilers and Water Heaters
      • Water Heater Stock
      • Boiler Stock
    • Hydronic Systems
    • Plumbing Systems
    • Steam and Condensate
    • Variable Frequency Drives (VFDs)
    • Glycol Solutions
    • Snowmelt Designs
  • System Design
    • Overview
    • Project Gallery
    • Selection and Design Tools
  • Water Solutions
  • Contractors
  • Service & Parts
    • Overview
    • Startup and Warranty
    • Parts
    • Service and Maintenance
  • Education
    • Overview
    • Basic Hydronic Blog Articles
    • Training Opportunities
    • Factory Classes
  • About RLD
    • Overview
    • Team Deppmann
    • R.L. Deppmann Locations
    • Careers
    • Community Engagement
    • Press and News