I am a newbie to HHO generators and have a small puzzle to solve. I am putting a HHO system on my 2008 Tundra here in Fairbanks Alaska where -60 is not uncommon and have to figure out how to keep the water from freezing while the vehicle isn't running. I was thinking of housing the system in an insulated box, such as the box that Mike from hhoconnection built just insulated, then heat the inside of the box with a light bulb but I wanted to see what the pros would do to solve this issue I a have.