thermoelectric generators (teg) is a whole series of the functionally completed products, each of which consists from thermoelectric modules. Thermoelectric modules, working on a difference of thermal potentials, allows to transform heat of household or other sources of heat (fire, gas torch, furnace etc. ) to electrical energy. The quantity of modules used in a product, determines its target electrical capacity.
as an example, one of variants of application thermoelectric modules is shown on a photo.