Water hot water heater

[davo]

I'm trying to find where to relight the pilot light for my hot water heater I've never had this problem happen in a year and a half but all the sudden I have propane my stove top works fine but my furnace for my hot water will not light can somebody tell me where that pilot light is located I check the panel on the outside of the house I checked inside the house I check my fuses and my Breakers.