Featured image for “Hydronic System Design – High Delta T Can Improve Boiler Efficiency (Part 2 of 4)”
Norm Hall
 / 
February 7, 2022
Boilers
, 
Condensing
, 
Hydronic system design
, 
Monday Morning Minutes
, 
Primary secondary piping
, 
Selection & specification
, 
Temperature control
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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Featured image for “Constant Speed 2-Way Control vs. Variable Speed Pumps for Heating and Cooling Coils (Part 2)”
Norm Hall
 / 
November 22, 2021
Coils
, 
Hydronic system design
, 
Monday Morning Minutes
, 
Primary secondary piping
, 
Temperature control
An engineer asked a question about using a variable speed pump for air temperature control in lieu of a two-way control valve. What are the... READ MORE
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Featured image for “Constant Speed 2-Way Control vs. Variable Speed Pumps for Heating and Cooling Coils (Part 1)”
Norm Hall
 / 
November 15, 2021
Coils
, 
Hydronic system design
, 
Monday Morning Minutes
, 
Primary secondary piping
, 
Temperature control
An engineer asked a question about using variable speed pumps for air temperature control in lieu of a two-way control valve. The question clearly makes you... READ MORE
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Featured image for “Hydronic Radiant System Secondary Temperature Control Using “The Law of the Tee””
Norm Hall
 / 
August 19, 2019
Hydronic system design
, 
Monday Morning Minutes
, 
Primary secondary piping
, 
Temperature control
Primary-Secondary hydronic piping is a common piping scheme in today’s hydronic heating and cooling systems. This article will show you how to use this common... READ MORE
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Norm Hall
 / 
September 7, 2009
Boilers
, 
Condensing
, 
Hydronic system design
, 
Monday Morning Minutes
, 
Primary secondary piping
, 
Selection & specification
, 
Temperature control
Printer Friendly (PDF) Last week, we created a chart showing the flow rates and temperatures in an example system so we could maximize the delta... READ MORE
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Norm Hall
 / 
August 31, 2009
Boilers
, 
Condensing
, 
Hydronic system design
, 
Monday Morning Minutes
, 
Primary secondary piping
, 
Selection & specification
, 
Temperature control
Printer Friendly (PDF) Last week, we used an AHU unit system example which showed the advantages of reducing the return water temperature at design, as... READ MORE
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