16? Glad I'm a bit farther south of Dallas.
I've kicked the idea around of mounting a few select components of this ice melting system to the inside panel of the aluminum door on a couple of my wet bays. Perhaps daisy chain a couple of the stair treads. maybe add a silicone mat to protect the panel surface from heat.
https://www.amazon.com/HeatTrak-HR20...words=heattrak