THE ERV140TE has been designed to be one of the most energy-efficient ERV air exchangers on the market. Its innovative design incorporates high performance ECM motors, which enable it to operate on power equivalent to a compact fluorescent bulb (13.5 watts) significantly lowering energy costs. ERVs are ideal for LEED-certified residential projects and other energy-efficient homes because they recover the heat or coolness of the indoor air while helping to maintain comfortable moisture levels inside the home.Assembly Required: No Color: Tan Material: Steel Weight: 65