As of March 2015, a short glass tube-style defrost heater for Maytag refrigerators costs $31.80, a defrost heater kit from Frigidaire costs $37.07, while a long defrost heater for GE refrigerators costs $94.40. Depending on the specific needs of the refrigerator or freezer, there can be significant price discrepancies.
The price of defrost heaters depends on a couple of variables, including size, style and manufacturer. Additionally, some defrost heaters come with extra parts such as reflector shields, jumper wires and defrost thermostats that affect the final price. There are numerous online distributors of defrost heaters, and many hardware stores carry them in stock as well.