• In this installment of Weekly Boiler Tips we cover the safest testing frequencies and what you need to know before pulling that lever.
    May 21, 2025
    In this installment of Weekly Boiler Tips we break down why diverters, baffles, and turbulators matter—and what happens if they’re left out.
    May 14, 2025
    Today on Weekly Boiler Tips we explain how to manage feedwater temps to avoid thermal shock and protect your system.
    May 7, 2025
    Today on Weekly Boiler Tips we look at stack temperature limits, low fire hold techniques, and the best methods for reducing thermal shock.
    April 30, 2025
    The Training Shorts videos, along with many others, are available on PPI's website at no charge.
    April 25, 2025
    In this installment of Ras Class learn how a shunt switch works, and how it helps clean out sludge and sediment from low water cutoffs.
    April 24, 2025
    In this installment of Weekly Boiler Tips, learn how manual boiler operation helps reduce thermal stress.
    April 23, 2025
    In this installment of Weekly Boiler Tips we explain how vertical height, pressurized tanks, and steam generation influence boiler pressure measurements.
    April 16, 2025
    On the latest installment of Ras Class, Tom from Autoflame stopped by the Rasmussen Mechanical offices to break down the latest features on the Mini Mk9.
    April 10, 2025

    See columnist Dave Yates install a Navien NHB boiler

    An outdated floor standing heating system makes way for Navien’s new high-tech wall-hung condensing modulating boiler, the NHB.
    Sept. 3, 2015

    An outdated floor standing heating system makes way for Navien’s new high-tech wall-hung condensing modulating boiler, the NHB, in a video shot during a recent Pennsylvania retrofit. Featuring a most efficient turn down ratio of 15:1, installer Dave Yates of F.W. Behler, Inc. gives this product a “two thumbs up” while he fully expects to see an energy consumption reduction of 30-50% for his customer.  

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