You're in Texas man, it's literally 3 degrees out here. The hair on my arm is freezing while the rest of me is in the tub
If it gets under 100 I start to get chilly and have to get out.
Another thing is the jets....who uses these things anyway? Total novelty, just a tranquil soak is where it's at. I don't need a 140psi rotating jet jack hammering my sciatic for 30 minutes. I have em, but they almost never get turned on (except to mix in the chemicals).