ERU

Definition

An Energy Recovery Unit (ERU) is a system designed to recover and reuse energy from building exhaust systems to precondition incoming air, improving energy efficiency.

Purpose

The purpose of an Energy Recovery Unit is to enhance the energy efficiency of HVAC systems by capturing and reusing energy that would otherwise be lost. This process helps reduce heating and cooling costs and improves overall building sustainability.

Examples of Use

• Commercial Buildings: Installing ERUs to recover energy from ventilation exhausts in office buildings.
• Industrial Facilities: Using ERUs in factories to reclaim energy from process exhausts.
• Residential Applications: Integrating ERUs in homes to improve HVAC efficiency and reduce energy bills.

Related Terms

• HVAC (Heating, Ventilation, and Air Conditioning): Systems that provide heating, cooling, and air quality control in buildings.
• Heat Exchanger: A component within an ERU that transfers heat between exhaust and incoming air streams.
• Energy Efficiency: The goal of using less energy to provide the same level of energy service.

Notes

• Proper maintenance of ERUs is essential to ensure their efficiency and longevity.
• ERUs can be particularly beneficial in buildings with high ventilation requirements, such as hospitals and schools.