The term “ERU HVAC” stands for Energy Recovery Unit Heating, Ventilation, and Air Conditioning. It is a type of HVAC system that utilizes energy recovery technology to help reduce energy costs and improve the efficiency of a building’s climate control system. An ERU HVACHVAC system works by transferring energy from one source to another, typically from the exhaust air of the building to the fresh air entering the building. This process helps to reduce the amount of energy required to heat or cool the building, while also reducing the amount of energy wasted. The energy recovered from the exhaust air is then used to pre-condition the fresh air entering the building, which helps to reduce the amount of energy required to maintain the desired temperature. ERU HVACHVAC systems are becoming increasingly popular due to their ability to reduce energy costs and improve the efficiency of a building’s climate control system.