63# Propane Last......?

For summer use I get almost 2 full months out of a standard 20# propane tank. That would include cooking and running the hot water heater about 20 minutes/day for showers. Use of the furnace changes everything rapidly. For say 70 degree days and 40 degree nights, I set the furnace to a low temperature at night. It will run a few minutes each hour. In the morning I will run it for 15 minutes to warm up. Along with everything else that sort of use will bring me to about 1 month per propane tank. If night time temps are at 20-30 degrees or lower, the furnace will run through a tank pretty quickly...in about 2 weeks.