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Heat Pump Water Heaters: Water Source Units (Part 12)

Norm Hall November 7, 2022Heat Pump Water Heaters, Heat Pump Water Heaters, Monday Morning Minutes, Water Heaters, Plumbing System Design, Electric

Many heat pumps used in Ohio and Michigan are water sources for comfort heating and cooling. Today, we want to look at the water source …

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Delta TWater HeatersHydronicsNorm Hallflow rate
how to place boiler image
how to place boiler image

Primary-Secondary or Primary-Variable Heating Systems: Which System to Choose?

Norm Hall May 2, 2022Delta T, Monday Morning Minutes, Boilers, Primary Secondary

Primary-Secondary vs. Primary-Variable hydronic boiler pumping systems each have advantages for the engineer to consider. Most people in the industry are in one camp or …

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primary variable flow systemDelta TBoilersNorm HallBell and Gossettflow ratepumpsprimary secondary prinicples
Thermal Efficiency of BMK3000
Thermal Efficiency of BMK3000

Condensing Boiler Staging & Dual Return for Higher Efficiency (Part 4 of 4)

Norm Hall February 21, 2022Monday Morning Minutes, Boilers, Condensing, Efficiency

An engineer uses larger temperature differences and deep reset when designing a condensing hydronic heating system. The design may utilize staging of multiple boilers in …

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Delta TBoilersCondensingHydronicsNorm Hallhydronic systemshydronic system
efficiency chart
efficiency chart

Condensing Boiler Temperature Reset for Increased Efficiency (Part 3 of 4)

Norm Hall February 14, 2022Monday Morning Minutes, Boilers, Condensing, Hydronic Design, Delta T, Delta T

We are continuing with the series on Condensing Heating System Efficiency. Today, we are discussing condensing boiler temperature reset for increased efficiency. Hydronic condensing heating …

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Delta TBoilersCondensingNorm Hallwater quality

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  • 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