The Over Door PTC Heater/Fan with Remote Control and 24 hour 7 day Timer is ideal for installation in shop doorways and business reception areas. In fact install it anywhere you want to limit heat loss or temperature fluctuations where an exterior door is frequently in use.With 2 heat settings (1 or 2 kW) and a fan only setting, the Over Door Heater and Fan also features a wide oscillating angle for generous heat distribution and a timer for total control. The Over Door Heater and Cooler from Prem-I-Air features a ceramic PTC element, which is an extremely efficient heating method, ideal for areas where temperatures may fluctuate. Specifications Frequency (Hz): 50 Heat settings: 2 Input power: 2 kW LCD display: yes Noise level (dB(A)): 50 Oscillation function: yes Overheat safety cut out: yes Timer (hours): 24