We're going to be off for a 3 week vacation next week, and want to turn off the water in the house. The problem is that the hot water heater is in the attic.
My concern is that if I leave the gas on "heat" mode, I run the risk of boiling the water out of the tank and maybe having a fire hazard. The other option is to simply leave the pilot on, but I am not sure that will keep the water warm enough to prevent freezing of the water in the tank.
Other material facts:
1) It's a 50 gallon gas hot water heater. 2) It does wear an insulation blanket outside of the tank. 3) We live in the Dallas area so it normally doesn't get terribly cold in December, and when it gets cold it tends to not stay that way for very long.What do you think?
Thanks in advance for any opinions.