eFlow USA proudly contributed to the Passive House retrofit of NYU’s historic Rubin Hall, a $7 million environmentally sustainable renovation. Our custom eFlow-CAR Mounting Plate Assemblies played a crucial role in optimizing airflow efficiency, reducing operational costs, and ensuring superior indoor air quality in achieving Passive House certification.
The project was guided by Steven Winter Associates (SWA), serving as the LEED and Passive House consultant, with support from NYSERDA. The newly implemented ventilation system will deliver significant indoor air quality improvements while drastically cutting operational costs. Expertly installed by GDO Contracting Corp and Tomco Sheet Metal, our advanced airflow solutions were key to transforming this landmark into a model of energy efficiency and sustainability.

New York University, Rubin Hall, 35 5th Avenue, NYC
Picture credit to: NYtimes.com
Key Industry Leaders Behind the Project:
- Architect: FXCollaborative
- Passive House Consultant: Steven Winter Associates (SWA)
- Engineer: AKF Group
- Installer: GDO Contracting Corp, Tomco Sheet Metal
- Supporting Organizations: New York State Energy Research and Development Authority (NYSERDA), New York Chapter of the American Institute of Architects, Con Edison, and local/state government agencies
A Historic Landmark Meets Passive House Standards
Originally built in the 1920s as a luxury hotel, Rubin Hall has served as a New York University (NYU) residence hall since 1964. Recognized as a historic landmark by the NYC Landmarks Preservation Committee (LPC) in 1969, this building is now undergoing an extensive 15-month Passive House retrofit to enhance sustainability and energy efficiency.
As part of this innovative upgrade, eFlow USA’s ventilation solutions were integrated to optimize airflow control and support Passive House certification—one of the highest standards for energy efficiency in building design.
Why eFlow-CARs Matter for Historic Retrofits:
- Energy Efficiency – Reduces HVAC strain, leading to significant operational cost savings.
- Healthier Indoor Air – Ensures proper air circulation and minimizes airborne pollutants for NYU’s 680 student residents.
- Seamless Integration – Designed to enhance airflow without compromising the architectural integrity of this historic building.
Sustainable Innovation in Higher Education
Rubin Hall’s Passive House retrofit demonstrates how modern energy efficiency solutions can seamlessly integrate with historic structures—ensuring long-term sustainability, improved indoor air quality, and reduced carbon emissions.
By incorporating eFlow-CAR Mounting Plate Assemblies, this project sets a precedent for sustainable retrofits in academic institutions and historic buildings nationwide.
Build for the Future with eFlow USA
From landmark retrofits to high-performance new constructions, eFlow USA’s solutions help buildings achieve optimal airflow and sustainability goals.
🌐 Website: eflowusa.net
🛒 Order Online: eflowshop.net
📧 Email: [email protected]
📞 Call: 1-833-356-9872
Picture credit to: NYtimes.com
eFlow-CAR FACTS
eFlow-CAR is a simple solution to balancing ventilation systems. Constant Airflow Regulator is a device that automatically regulates airflows in ventilation systems to constant levels. The passive control element responds to duct pressure, and requires no electric sensors, pneumatic sensors or controls. eFlow-CARs promote high indoor air quality and energy savings.
- UL 2043 Classified
- Composed of fire resistant UL 94 ABS plastic
- Diameters offered: 3”, 4″, 5”, 6”, 8″, 10″
- Operating Pressure Range: 0.08 to 2.4 in w.g. (20-600Pa)
- Airflow settings: 15-765 CFM
- Temperature Limits: -22° to 140°F (-30° to 60°C)
- Suitable for both supply and exhaust applications
- No external power supply needed
- Field Adjustable CFM set point
- Capable of maintaining constant airflow within +- 5% for nominal airflow throughout the target operating pressure range of 0.08 to 2.4 in.
- Standard for Energy Efficient Compliance
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