Get to
Know the Engineer
I'm Herman Pardon, a Mechanical Engineer, certified Passive House Designer, and honorably discharged veteran based in New York.
I founded Constant Flow Mechanical in 2024 because I saw a need for HVAC engineers who understand Passive House and high-performance buildings.
I started my HVAC journey in the US Army, servicing heating and cooling systems used in communication tents. Once I served my time in the Army, I worked as an HVAC installer and service repairman, and eventually went back to school to become an engineer.
I really enjoy designing HVAC systems and look forward to creating a system for you.
Why Constant Flow Mechanical?
The Project
Each project is unique and presents its own set of challenges. Understanding the floor plan, wall assemblies, roof assemblies, floor assemblies, windows, and doors is crucial for determining the type of equipment needed for a project.
I recommend bringing an HVAC engineer onto the project early to coordinate with the architect and builder to establish space for equipment and ducts.
My Process
My process differs from that of other engineering firms. During the planning phase, I work directly with the architect or builder to reduce the heating and cooling load needed for your project. I use the Passive House framework to optimize wall and roof insulation, air tightness, and thermal efficiency of windows and doors. Then I right-size the HVAC system. This reduces heating and cooling loads, operating costs, and equipment size.
During the project, I continue to be a resource to ensure that our strategy is implemented effectively and efficiently.
Not Oversized
Oversized equipment requires more electricity to operate, which leads to higher electricity costs. It also creates humidity issues because oversized equipment doesn't run long enough during cooling season to help dehumidify. Most importantly, oversized equipment adds costs with no benefits.
I do not oversize systems or select equipment based on room size.
Equipment
These are my recommended systems that I use often. Other heat pumps can be used based on the scope of the project.
AHU & Heat Pump
Mitsubishi -Low and mid static horizontal and multi-position units
Energy Recovery Ventilator (ERV)
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Zehnder
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Brink
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RenewAire
Makeup Air System
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Fantech
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Electro Industries
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CaptiveAire
Hot Water System
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SunAmp - Termino E
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AO Smith
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Rheem
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Eco2