The aluminium foil heater is a flat heater component made through melting the electric wire onto the single aluminium foil or adhering the electric wire between two aluminium foils. It’s back has two–sided glue, so it can be conveniently pasted on the heated surface. It’s thickness:3~5mm,area 10 c㎡~1.0㎡ ,operation power:0.5w up to several hundred watts ,the highest operating temperature reaches 150℃.It possesses many particular advantages, such as conveniently and promptly to install and design, safety and sanitation to use, surface heat diffusion evenly, longevity of service, low price ,design optionally and conveniently according to the heating surface shape. So it is a perfect heating component to be used in all kinds of low temperature surface heating, and it has been widely used in refrigerator and freezer for compensating heat ,advertisement moisture-proof and  mist elimination, medicine and foodstuff processing, heat preservation in the planting and breeding and so on.