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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Sometimes simple things can slow you down in the design of hydronic heating and cooling systems. Air vents for use in water and glycol systems... READ MORE
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Glycol correction factors were the subject of many of the last few R. L. Deppmann Monday Morning Minutes. While writing these articles, I thought about... READ MORE
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Ask any test/balance or service technician in the hydronic HVAC world to convert PSIG to feet of head and the multiplier of 2.31 is the... READ MORE
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  The last couple of R. L. Deppmann Monday Morning Minutes introduced the BTUH corrections required when using glycol in hydronic heating and cooling systems.... READ MORE
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In the last R. L. Deppmann Monday Morning Minute, I provided the BTUH correction factors for propylene glycol. We don’t want to play favorites so... READ MORE
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We are all familiar with the BTUH formula (BTUH = GPM x ΔT x 500) used to calculate the gallons per minute (GPM) water flow... READ MORE
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In part 1 and part 2 of this series, we discussed maximum and minimum heated water velocities in Bell & Gossett SU heat exchangers with standard... READ MORE
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Over the last few weeks the Monday Morning Minutes (MMM) posts have reviewed the use of tankless water heaters vs. traditional storage type water heater... READ MORE
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