Re: Steady Ambient Temps.
Getting an ambient temp of 80F will be pretty hard if your room is around 70F. The floor temp may be good, but the air temp probably won't be as high as it should.
My room is typically 75F+ and my tub's bottom is completely covered with UTH's. The tub floor is 82-83F but the air temps inside the tub are around 79F (measured by a digi thermometer and a heat gun). I've been thinking about attaching a UTH to the bottom of the tub's lid (so that it would be inside the tub) to raise the ambient temps a bit. If you're room is gonna stay around 70F you'll definitely need something extra to bump the temps up.
Dennis