There are a variety of sheath diameters and materials such as InColoy 840 the industry standard as well as 309 stainless steel and 321 stainless steel. Other materials are available upon request. Our elements are safety certified with the following agencies: UL File SA5102 and CSA file LR18489.

The most common application for these heaters is as a defrost element in domestic and commercial refrigerators. Backer-Springfield elements are found in most of the homes in the US, quietly keeping refrigerators and freezers frost free. Similarly, these heaters are used in commercial refrigerators and freezers found in most every grocery store and restaurant.

The ice making function of our heaters both in the residential and the commercial machines is to slightly melt the freshly formed ice in order to extract the cubes from the icemaker or ice slurry from the freezing tube before it is chopped into smaller pieces for serving.

For the refrigeration and defrost functions our elements are used to quickly melt the ice that has formed on the coils in the cooler unit after a specified period or when the application senses it needs defrosting. This is accomplished in one of two ways by either have our elements securely mounted on the surface of the coils or having our elements interference fitted into a “U” shape cutout in the coils. In addition to getting the ice off the coils a drain pan heater is used to evaporate the water generated from the coil de-icing. This cycling is valid for a residential application or the larger scale commercial rooftop systems