Alex ... Does the old "A watched pot never boils" adage come to mind? ..LOL
Mine started out @ 66 degrees @ 2:00 PM. I think it was probably 60 dgrees out, & exactly as delivery guys said, I gained 5 degrees an hour. 8 hours later, tub hit 102 degrees JUST as my wife was pulling into the driveway returning from a trip. HALLELUJA! (or something like that
)
ENJOY!