Below is a list of Electric Heaters manufacturers from Haverhill, Massachusetts. Electric heaters are utilities used for heat generation. The use of electric heaters throughout industry, commerce and consumer products contexts is widespread and varied; the number of different heater configurations and applications grows almost daily. Some heater varieties resemble each other very closely. Band heaters and strip heaters, for example, are distinguished from each other only by the fact that band heaters are usually slightly smaller and more flexible than strip heaters.