Heat Exchangers for Air to Air

An air-to-air heat exchanger is a ventilation device that recovers thermal energy from exhaust air and transfers it to incoming fresh air. The process can improve comfort and energy performance while maintaining outdoor-air ventilation. Depending on the model, BPE systems are supplied as plug-and-play ERVs, modular energy recovery modules, or unitary systems for HVAC integration.

An air-to-air heat exchanger describes the heat-transfer process between exhaust and incoming air. An energy recovery ventilator, or ERV, is a complete ventilation system that may include the exchanger, fans, filters, controls, and enclosure. BPE offers ERV systems and energy recovery modules using direct counter-flow heat exchangers for fresh-air and exhaust-air applications.

These systems are used in residential homes, multifamily buildings, offices, light commercial spaces, industrial facilities, machine shops, and dedicated ventilation systems. They can support HVAC retrofits, new installations, fresh-air makeup, exhaust-air heat recovery, and high-performance projects such as Energy Star, Passive House, and net-zero buildings.

Thermal efficiency varies by product and configuration. The listed BPE products provide direct counter-flow heat exchangers with stated thermal efficiency ranging from 70–90%+; the plug-and-play ERV lists over 90% thermal efficiency. Selection should consider airflow, operating conditions, pressure, installation arrangement, and the requirements of the ventilation system.

Available airflow depends on the selected product and configuration. The listed modular ERM product line covers 200–2,250 CFM, while the unitary ERV systems cover 500–20,000 CFM. The plug-and-play ERV includes built-in 200 CFM fans with variable speed controls. Product selection should match the required outdoor-air and exhaust-air rates.

Yes. The listed BPE unitary ERV systems and modular energy recovery modules are intended for HVAC system retrofits as well as new installations. Their applications include fresh-air intake, exhaust-air heat recovery, and dedicated ventilation. Modular, factory-wired equipment can help address projects where access, installation space, or existing rooftop structures affect equipment selection.