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Rheingold Senior Residences, Brooklyn, NY

Rheingold Senior Residences Exemplify Building Excellence with Passive House Standard and NYSERDA Award: eFlow-Constant Airflow Regulators Drive Energy Efficiency and Indoor Air Quality

The Rheingold Senior Residences, located at 15 Monteith Street in Bushwick, Brooklyn, is a remarkable affordable housing project dedicated to low-income seniors. Having achieved the prestigious NYSERDA Building of Excellence award, the project now stands as a testament to innovation, offering 8 floors and 94 units of affordable senior housing. Designed to meet the exacting standards of Passive House criteria, the building marking a milestone in energy-conscious architecture. The meticulous installation of eFlow-Constant Airflow Regulators, coupled with state-of-the-art mechanical systems, a robust building envelope, and thoughtfully chosen materials, has culminated in a completed project that guarantees both minimal energy consumption and exceptional indoor air quality. This achievement establishes a groundbreaking precedent for environmentally mindful housing.

eFlow-CARs are cutting-edge ventilation devices that ensure automatic airflow balancing in buildings. By precisely regulating airflows, these innovative products offer numerous benefits, including energy savings and high indoor air quality. The use of eFlow-CARs in the Rheingold Senior Residences guarantees optimal ventilation performance and superior occupant comfort. The eFlow-CARs supplied for this project are 3″ in size, installed using 4″x4″, 5″x4″, and 6″x6″ custom adapter mounting plates for supply applications, as well as 4″ CARs installed with 6″x6″ mounting plates for exhaust applications. These regulators effectively balance the airflow in the building’s ventilation system, allowing for consistent air distribution throughout the various apartments and common areas. By maintaining a constant airflow, eFlow-CARs eliminate the need for manual adjustments or additional equipment, resulting in significant energy savings. One of the key advantages of eFlow-CARs is their contribution to energy efficiency. By automatically adjusting the airflow, these regulators optimize the performance of the HVAC system, reducing energy consumption and associated costs. This not only benefits the building owners financially but also contributes to a more sustainable and environmentally friendly operation. Furthermore, the installation of eFlow-CARs guarantees high indoor air quality. The constant airflow regulation ensures that each unit receives an adequate supply of fresh air while efficiently removing stale air. This continuous ventilation minimizes the risk of indoor air pollutants, allergens, and odors, creating a healthier living environment for the senior residents.

The success of the Rheingold Senior Residences project is a result of the collaborative efforts of various companies and professionals. Magnusson Architecture and Planning served as the project architect, designing an aesthetically pleasing and functional building that meets the needs of its occupants. Southside United HDFC acted as the developer, demonstrating their commitment to providing affordable housing options for low-income seniors. The MEP engineering services were expertly handled by GEA Consulting Engineers, ensuring the efficient integration of eFlow-CARs into the building’s HVAC system. KPFF Consulting Engineers contributed their expertise as the structural engineer, ensuring the structural integrity and safety of the entire project.

When it comes to the installation of the eFlow-CARs, AMK Mechanical, LTD played a crucial role, ensuring the smooth implementation of the regulators into the building’s ventilation system.  eFlow-CARs were supplied through SRS Enterprises Inc., who worked closely with the installer, AMK Mechanical, LTD, to ensure a seamless and efficient installation process. The collaboration between eFlow and SRS Enterprises Inc. demonstrates their commitment to providing outstanding customer support and delivering high-quality products that meet the unique needs of each project.

To conclude, the installation of eFlow-Constant Airflow Regulators at the Rheingold Senior Residences in Bushwick, Brooklyn, represents a significant step towards achieving energy efficiency and high indoor air quality. With their automatic airflow balancing, energy-saving capabilities, and commitment to superior indoor air quality, eFlow-CARs have established themselves as a key solution for enhancing the comfort and sustainability of buildings.

Photo credit Magnusson Architecture and Planning


Visit eflowusa.net for product information and pricing or email [email protected]



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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