The RenewAire Electric Preheat is an engineered solution for RenewAire HE07IN, HE07RT, HE10IN, HE10RT, HE15IN, HE15RT, HE20IN, and HE20RT energy recovery ventilators (ERVs). This option allows commercial applications like schools, clinics, banks, dental offices, fitness centers, and retail spaces to maintain optimal ventilation performance during extreme cold-weather conditions. Engineered for maximum winter uptime, this option preheats incoming freezing outdoor air before it enters the ERV core, reducing the risk of frost formation, which can restrict airflow. Ideal for Canada and northern U.S. states, the Electric Preheat option helps commercial facilities minimize operational interruptions to HVAC systems in sub-zero temperatures and high humidity conditions inside.
Key Benefits:
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Ensure Continuous Balanced Ventilation: Without preheat, exhaust air with relatively high moisture may freeze onto the face of the core during extreme-cold weather. This forces the unit to shut down and enter a defrost cycle, halting fresh air delivery. With Electric Preheat, the coil warms incoming air just enough to keep the exhaust air above the frost threshold, allowing the ERV to deliver continuous balanced ventilation 24/7.
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Maintain Balanced Building Pressure: Standard frost-prevention methods often rely on exhaust-only defrost. In tightly-sealed modern buildings, running exhaust-only creates negative air pressure, which pulls cold, drafty air through unsealed cracks in doors and walls. Electric Preheat allows facilities to maintain balanced airflow rates, preventing pressure imbalances and envelope infiltration.
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Protect Core Efficiency and Lifespan: The Electric Preheat option comes factory-installed in select HE Series ERVs with single-point power, meaning no additional time or materials are required for installation.