Heating and cooling service contractors take the brunt of complaints over the high cost of condensing boiler repairs. A high efficiency condensing boiler heat exchanger... READ MORE
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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... READ MORE
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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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Condensing Boiler Venting Material (Part 2)
Norm Hall
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March 28, 2022
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... READ MORE
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Condensing Boiler Venting Material (Part 1)
Norm Hall
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March 21, 2022
Proper venting of hydronic condensing boilers is critical for the safety of occupants and the successful operation of the heating plant. The materials that may... READ MORE
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Condensing Boiler Efficiency and Your Boiler Schedule
Norm Hall
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February 28, 2022
The marketing directive is clear in the hydronic condensing boiler world. Make sure you highlight high efficiency in every boiler advertisement and bulletin. So before... READ MORE
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Condensing Boiler Staging & Dual Return for Higher Efficiency (Part 4 of 4)
Norm Hall
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February 21, 2022
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... READ MORE
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Condensing Boiler Temperature Reset for Increased Efficiency (Part 3 of 4)
Norm Hall
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February 14, 2022
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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Hydronic System Design – High Delta T Can Improve Boiler Efficiency (Part 2 of 4)
Norm Hall
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February 7, 2022
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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