1 files changed, 2 insertions, 0 deletions

diff --git a/powder.h b/powder.h
index b69ec5b..e2ba4d2 100644
--- a/powder.h
+++ b/powder.h
@@ -109,6 +109,8 @@
 #define R_TEMP 22
 #define MAX_TEMP 9999
 #define MIN_TEMP 0
+#define O_MAX_TEMP 3500
+#define O_MIN_TEMP -273
 
 #define ST_NONE 0
 #define ST_SOLID 1