DCHP-1 Online
sap-house Maple Industry 
n. a building where sugaring-off (def. 1) takes place.
See also: sugaring-hut sugaring-off (def. 1)
- 1940 . . . a stove [was] placed in a special building known as a "sap house."
- 1966 But who can be bored sitting around a sap house in a beautiful day in March. . . .
- 1940 . . . a stove [was] placed in a special building known as a "sap house."