Quality, reliable and efficient, the new Devola 4kW Air Curtain is ideal for conditioning the air and reducing the amount of hot air escaping. This air curtain uses PTC Heating which is safe, energy efficient and powerful. With multiple features this air curtain can be used to heat up a cooler area and supply cool, fresh air in the summer time. Boasting many safety features this air curtain not only performs well but safely also giving you that extra peace of mind. Featuring 2 heat settings, 2 fan speeds and an adjustable thermostat this air curtain can give you the exact level of heating or cooling required and with the safety features including fuse protection, a power on indicator and quality metal, you can be confident that this air curtain will do the job.