Standard

This heating element is a single precision-wound resistance wire made of an iron-chromium-aluminum alloy. The heating element typically gets up to temperature in 10 - 20 seconds depending on tube design. This coil has a typical life expectancy of 10,000 hours and a maximum watt density of 60 watts per lineal inch.

Multiwound

This patented heating element has two intertwined precision-wound resistance wires made of iron-chromium-aluminum alloy wire. By reducing the wire's mass, the time required for the element to get up to temperature is greatly reduced. The multiwound element is up to operating temperature in five seconds. The actual time will depend, however, on the overall design of the tube. This coil has a typical life expectancy of 5,000 hours and a maximum watt density of 60 watts per lineal inch.