Brazing equipment joins two or more materials with a molten braze filler, which typically does not fuse with the base materials. Brazing is useful in joining dissimilar materials such as metals, ceramics, and incompatible or non-weldable alloys. Brazing is typically performed at a high enough temperature for diffusion to occur and to allow formation of a metallurgical bond between the braze and base metals. The braze metal must wet the substrate being brazed in order to form a joint with good integrity. The substrates must be heated sufficiently for wetting to occur.