...La belle cheminée de la grand'salle du palais des comtes de Poitiers nous donne un très-remarquable exemple de ce système de tuyaux divisés surmontant un seul manteau. Cette cheminée, qui date du commencement du XV^e siècle, ainsi que le pignon auquel elle se trouve adossée, occupe presque entièrement l'une des extrémités de cette salle, dont la construction remonte au XIII^e siècle; elle n'a pas moins de 10^m,00 de largeur sur 2^m,30 sous le manteau (sept pieds)...

This image comes from Dictionary of French Architecture from 11th to 16th Century (1856) by Eugène Viollet-le-Duc (1814-1879).

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