I train in a large wooden shed here at the house. I have over 800 pounds of olympic plates, a squat rack, couple benches, leg sled/calf/hack squat combo, lat pulldown..etc..anyway I have what I need to get the job done, except for an air conditioner...and that SOB gets hot as a mofo ...I try to train at night when I can, but here in New Mexico it's still hot even around 7 or 8 o'clock. I would say my consistency does fall behind a little in the summer. In the spring and fall I get excellent workouts in that shed cause the temp. is just right, but come winter time you freeze your ass off out there too. But then I just start wearing two shirts and two pairs of sweats with my socks pulled up over the outside of the sweats to keep the cold air out. Aint fun sometimes, but gotta endure the elements to get through the workout. Take care.