Decarbonization does not always automatically become electrification. The enterprising engineer will first look at diverse ways to reduce the carbon use. Here is an example... READ MORE
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Carbon reduction in building design is critical to the lifestyle of our future generations. Most engineers and their owner clients understand the concerns and welcome... READ MORE
Previously, the R. L. Deppmann Monday Morning Minutes looked at pump location in a primary-variable boiler heating system. We made a very definitive statement about... READ MORE
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We recently received several calls for our recommendation on whether to pump into the boiler or out of the boiler in a primary variable heating... READ MORE
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What is the minimum flow rate a variable speed pump can provide without damage to the pump? This is a question every engineer should ask... READ MORE
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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... READ MORE
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How can you increase the operating efficiency of your condensing boiler heating system? This question was raised in the last R. L. Deppmann Monday Morning... READ MORE
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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
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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
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A customer recently called us about an unusual occurrence in a closed hydronic cooling system for an ice rink. The system was filled using a... READ MORE
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