Hot water plumbing system design is a hot topic. The building plumbing design/engineering team is faced with a variety of new products, standards, and codes.... READ MORE
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When determining the size and number of water heaters to meet the customer’s needs, there are many factors to consider. How many water heaters do... READ MORE
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Tankless, sometimes called instantaneous, and storage water heaters have been utilized in commercial and institutional buildings for a long time. The overwhelming majority of these... READ MORE
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In our world, a certain style of a water heater may be referred to with many different names. Over the next many months, the R.... READ MORE
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Proper humidification in buildings is critical in the fight to reduce the spread of air-borne viruses. We have known this for years, but the pandemic... READ MORE
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There are some engineers who challenge the use of balancing valves at all in hydronic systems. If the control valve throttles the flow to satisfy... READ MORE
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The flow tolerance of a hydronic system is a critical component in the commissioning of an HVAC hydronic system. Should the balance report match the... READ MORE
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In the R. L. Deppmann Monday Morning Minutes part 1 of this series we defined diversity in hydronic systems. Part 2 introduced the sensorless pump speed... READ MORE
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The 2015 Michigan Energy Code is changing with an expected effective date of September 20, 2017. The long expected changes to the code were filed... READ MORE
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In this issue, we will discuss the changing requirements specific to “cycles of concentration” in cooling tower applications. In addition, we will review the effect of increasing cycles of concentration and provide solutions to improving these results. ASHRAE Standard 90.1-2010 code change effective 10.18.2013 states [Read more…]... READ MORE
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