eFlow USA delivered over 400 eFlow-CAR 5″ Constant Airflow Regulators via direct sale for the $143 million mixed-use development at 737 4th Avenue, Brooklyn, NY. This 14-story, 187-unit new construction project is brought to life by an elite team. Project stakeholders include Dencityworks Architecture (Project Architect), Cosentini Associates (MEP Engineer), and CM & Associates (General Contractor), with eFlow products expertly installed by Enercon Technical Services and Pro Air Mechanical.
Engineering Airflow for High-Value Mixed-Use Developments
In a major $143 million mixed-use property, balancing the HVAC load is a critical engineering challenge. eFlow-CARs provide the exact passive ventilation required to maintain superior indoor air quality without overworking the central systems. By delivering over 400 of our 5″ eFlow-CARs—factory-calibrated specifically to 25 CFM for kitchen exhaust and 20 CFM for toilet exhaust—we ensured consistent, balanced, whisper-quiet airflow across all 187 rental units. This precision guarantees comfort and energy efficiency for both the market-rate and the 25% affordable housing residences, all without the need for power or complex sensors.
eFlow-CAR at a Glance
▪️ Product Models: eFlow-CAR (5″ Regulators)
▪️ Applications: Kitchen and toilet exhaust airflow control (New Construction)
▪️ Performance: Passive regulation; factory-calibrated to exactly 25 CFM and 20 CFM; requires no sensors or power
Project Stakeholders
▪️ Project Architect: Dencityworks Architecture
▪️ MEP Engineer: Cosentini Associates
▪️ General Contractor: CM & Associates
▪️ Installer of eFlow products: Enercon Technical Services | Pro Air Mechanical
▪️ Product sold: Over 400 units of eFlow-CAR 5″ (25 CFM and 20 CFM)
Why eFlow-CARs Matter
▪️ System Balancing: Prevents over-ventilation and significantly reduces strain on the central HVAC infrastructure.
▪️ Equitable Comfort: Delivers consistent, high-quality indoor air across all market-rate and affordable units.
▪️ Precision Calibration: Exact 25 CFM and 20 CFM set points ensure strict code compliance and eliminate exhaust noise.
▪️ Maintenance-Free: Passive operation guarantees long-term reliability, lowering operational costs for the building’s life cycle.
Project Overview
▪️ Address: 737 4th Avenue, Brooklyn, NY
▪️ Building Type: Mixed-Use Residential (New Construction)
▪️ Number of Floors: 14
▪️ Number of Units: 187 Rental Units (including 25% affordable housing)
▪️ Scope: Supply of 400+ eFlow-CAR 5″ Regulators (set to 25 CFM and 20 CFM)
Defining the Standard for Mixed-Use Developments
From major $143M new constructions to elite waterfront properties, eFlow-CARs deliver the precise airflow necessary for modern building codes and premium resident comfort.
🌐 Website: eflowusa.net
🛒 Order Online: eflowshop.net
📧 Email: sales@eflowusa.net
📞 Call: 1-833-356-9872
📄 Download eFlowUSA Product Catalog & Price List (PDF)
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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