DCHP-1 Online
plan-heap Hist. 
n. in clearing land, a planned procedure for felling trees for burning (def. 1) in such a way that as many as possible fall near or across each other so that an efficient burn results.
See also: burning (def. 1) piling
- 1825 (1916) Jabez had shown us how to make plan-heaps, and we so fell the trees, which will save hard work when we come to burn.
- 1853 If you succeed in getting a good burn for your fallow, the chances are, if your plan-heaps are well made, that they will be mostly consumed.
- 1905 Much skill could be displayed in felling the timber by causing as many trees as possible to fall beside or over one another so as to form what were called "plan heaps."
- 1825 (1916) Jabez had shown us how to make plan-heaps, and we so fell the trees, which will save hard work when we come to burn.