Uhanza - Hot rice seat

...Meimuro is another name for a greenhouse for warming koji, that is, a koji room. Koji za was called by various names in medieval Yamato, including Uhanza, a name that was named after the manufacturing method, and Meimuro za is thought to be one of these names. The Meimuro za had its headquarters in Daijoin Temple of Kofuku-ji Temple, and competed with other koji za, including Daibutsu-kuza, Uhanza, Otogiza, Takeuchiza, and Kiharaza, for sales rights in the Yamato Basin....

*Some of the terminology that refers to "Onmeshiza" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…飯室とは麴を温めるための温室すなわち麴室の別名。麴座は中世の大和でさまざまな名称で呼ばれたが，その製造法にちなんだ名称としてはほかに温飯座（うはんざ）があり，飯室座もこの種の名称の一つと考えられる。飯室座は興福寺大乗院を本所とし，大仏供座，温飯座，乙木座，竹内座，木原座という他の麴座と，大和盆地における販売権を争っていた。…

※「温飯座」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報