Got it turned on! Didn't realize there were knobs below (never had a gas fireplace!)
Now it's on and I can turn low to high but it's hissing and smells gassy. Normal?
Did you just turn the gas on and not the electric wall switch? If the gas is on but you don't switch the electric switch and your gas is high, your leaking gas. Very bad.
If it's on the pilot light only, you are fine but it won't be hissing or smelling gassy.