COP – Coefficient Of Performance

"Typical applications that use air side heat pump technology would expect as a minimum to provide 3.5kWh of heat for 1kWh of electricity used to drive the process”

BSRIA Guide to Heat Pumps BG7/2009

This ratio of 3.5 is referred to as the "Coefficient Of Performance” or COP.

Tests using Envirotec air curtains matched with Toshiba inverter driven Heat Pumps have returned average COP’s of 3.5 and higher.