The Collaborative International Dictionary of English v.0.48:

Hemmel \Hem"mel\, n. [Scot. hemmel, hammel, Prov. E. hemble
   hovel, stable, shed, perh. allied to D. hemel heaven, canopy,
   G. himmel; cf. E. heaven. [root]14.]
   A shed or hovel for cattle. [Prov. Eng.] --Wright.
   [1913 Webster]