I ended up doing as I initially said. I have a Auxiliary repeater in a box with a 5 watt heater module and a thermostat. Along with the repeater and power supply. It was 40 the other day and the box was pretty toasty. And the heater wasn't on. So now I think I might have to vent the box in a waterproof, insect proof manner. Thew unit and power brick I guess throw off a certain amount of heat. Installed a wireless repeater just to be sure midway between main and the outside one. Works like a charm.