diff --git a/turbine_driver.lua b/turbine_driver.lua
index 75d2814..02aaf4f 100644
--- a/turbine_driver.lua
+++ b/turbine_driver.lua
@@ -1,7 +1,7 @@
 local max = 90
 local maxVent = 70
-local minVent = 60
-local min = 40
+local minVent = 30
+local min = 20
 
 local function getValue()
     return turbine.getSteamFilledPercentage() * 100