I have a gas furnace with a humidifier that has a portable drain pump
that pumps water from my humidifier outside through a small ( I think
1/4" line) to the outside. It has been frigid cold in the NE since
Sunday and I noticed a puddle of water on my floor in the furnace
room. Apparantly the drain line going outside somehow froze, causing
the water to back up. Is there a way I can put insulation over the pipe
outside so it does not freeze?