[Mrs Snoodles]

this is a bit old, from 99 but makes interesting reading.  We have insulated B type huts but if money had allowed we would have gone for the triangular ones  We were really surprised at the differences.

http://www.ipic.iastate.edu/reports/99swinereports/asl-1680.pdf

[benkt]

Thanks for that link! Really good to see  some hard figures for this and as we build our own arcs I think we'll be moving doors to the corners as a simple first step!

[Beewyched]

Useful link Mrs S - makes interesting reading