Featured image for “Hot Water Heater Decarbonization: Using Condenser Water to Pre-Heat the Incoming Cold-Water”
Norm Hall
 / 
June 13, 2022
Heating
, 
Monday Morning Minutes
, 
Plumbing System Design
, 
Water Heaters
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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Featured image for “Top 10 Things You Should Know About Commercial Electric Boilers (Part 2)”
Norm Hall
 / 
June 6, 2022
Boilers
, 
Electrical
, 
Monday Morning Minutes
Welcome back to Part Two of our top 10 things to know about commercial electric boilers. As mentioned last week, HVAC and Plumbing Engineers are... READ MORE
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Featured image for “Top 10 Things You Should Know About Commercial Electric Boilers (Part 1)”
Norm Hall
 / 
May 30, 2022
Boilers
, 
Condensing
, 
Monday Morning Minutes
, 
Operation
HVAC and Plumbing Engineers are discussing more decarbonization and electrification of systems with their clients. The use of electric boilers vs. gas fired condensing boilers... READ MORE
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Featured image for “Carbon Reduction is the Dream. Here’s How to Make it a Good One.”
Norm Hall
 / 
May 23, 2022
Decarbonization
, 
Decarbonzation
, 
Hydronic Design
, 
Plumbing System Design
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
Featured image for “What is a Flexible Tube Condensing Boiler? Why My Client May Want It”
Norm Hall
 / 
May 16, 2022
Boilers
, 
Condensing
, 
Monday Morning Minutes
, 
Selection
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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Featured image for “Circulator Pump Curves & Step Sized Selections. A Domestic Water Recirculation Example”
Norm Hall
 / 
May 9, 2022
Monday Morning Minutes
, 
Pumps
, 
Speed
Circulator series pumps are those small inline pumps that have fixed impeller choices with no impeller trimming available. When these pumps have ECM technology, the... READ MORE
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Featured image for “Primary-Secondary Variable Heating Systems: Should I Pump Into the Boiler or away from It?”
Norm Hall
 / 
April 25, 2022
Boilers
, 
Hydronic Design
, 
Monday Morning Minutes
, 
Primary Secondary Piping
, 
Primary Variable
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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Featured image for “Primary Variable Heating Systems: Should I Pump Into the Boiler or Out of It?”
Norm Hall
 / 
April 11, 2022
Boilers
, 
Expansion & Compression Tanks
, 
Hydronic Design
, 
Monday Morning Minutes
, 
Primary Variable
, 
Pumps
, 
Tanks
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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Norm Hall
 / 
March 21, 2022
Boilers
, 
Condensing
, 
Monday Morning Minutes
, 
Venting
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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Norm Hall
 / 
March 14, 2022
Cooling Towers
, 
Hydronic Design
, 
Monday Morning Minutes
, 
Pumps
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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