I live in Phoenix, where the temps are into the 100's now. My AC is set at 79.
I've got my eggs on vermiculite in Tupperware. The containers are on top of 2 bricks in a 20 gallon tall with water up to the top of the bricks. I put a 2-gallon fish tank heater in the water to keep the temps constant. The tank is covered with a screen top that has plastic wrap in it to keep the moisture in. The temps vary from 79.1 at night to 81.3 in the day.
The whole set up is in an un-carpeted closet.

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Diego
SNAKES
1.2.0 Corn Snakes (Different morphs)
1.1.0 Hypo Everglades Rat Snakes
1.1.0 Trans-Pecos Rat Snakes
1.1.0 Salt and Pepper Bull Snakes
0.1.0 Amel Pacific Gopher Snake
3.1.0 Sonoran Gopher Snakes
0.1.0 Amel Sonoran Gopher Snake
1.1.0 Mexican Black Kingsnakes
1.0.0 Gray Banded Kingsnake
0.1.1 California Kingsnake
1.1.0 Thayeri Kingsnake
3.2.0 Rosy Boas (Mexican, Temecula, & Mid Baja)
1.1.0 Kenyan Sand Boas
0.1.0 Indonesian Dwarf Pacific Boa
1.1.0 Cape York Spotted Pythons
1.0.0 Ball Python
1.1.0 Western Hognoses
0.0.1 Lyre Snake
0.0.1 Glossy Snake
LIZARDS
2.0.0 Bearded Dragons
0.1.0 Eastern Collared Lizard
1.0.0 African Fat-Tail Gecko
0.1.0 Merauke Blue Tongue Skink
1.4.0 Leopard Geckos
1.0.1 Yellow Niger Uromastyx
1.1.0 Chuckwalla
1.4.0 Banded Gecko
0.0.1 Gold Dust Day Gecko
0.0.5 Sandfish
AMPHIBIANS
1.0.1 Green Tree Frogs
1.0.0 Bubbling Kassina
0.0.1 White's Tree Frog
0.0.2 Gold Frogs
1.0.0 Fire Salamander