The 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 outdoor air before it enters the ERV core, reducing the risk of core freezing during moisture exchange. 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.

• Ensure Continuous Balanced Ventilation: Our economical, compact HE ERVs paired with the DX coil are a cost-efficient alternative for applications requiring 100% outdoor air.

• 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.

• Protect Core Efficiency and Lifespan: Preheating freezing air serves as a preventive shield for the ERV core. It eliminates damage from frost build-up, keeps air passages clear to maintain optimal static pressure and fan efficiency, and extends the lifespan of the core.