The United States Department of Energy (DOE) has some minimum efficiency standards which go into effect on January 10, 2023, for Commercial Packaged Boilers. What …
Top 10 Things You Should Know About Commercial Electric Boilers (Part 2)
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 …
Top 10 Things You Should Know About Commercial Electric Boilers (Part 1)
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 …
What is a Flexible Tube Condensing Boiler? Why My Client May Want It
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 …
Circulator Pump Curves & Step Sized Selections. A Domestic Water Recirculation Example
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 …
Primary-Secondary or Primary-Variable Heating Systems: Which System to Choose?
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 …
Primary-Secondary Variable Heating Systems: Should I Pump Into the Boiler or away from It?
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 …
Primary Variable Heating Systems: Should I Pump Into the Boiler or Out of It?
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 …
What to Do with Steam Leaving a Flash Tank: Simple Example
We received a call from one of our wholesalers with an industrial customer experiencing a flash tank issue. The industrial customer was using 50 PSIG …
Condensing Boiler Efficiency and Your Boiler Schedule
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 …