We’re in day two a cold spell and I woke up yesterday to no water.  It made no sense to me, my fresh water tank compartment is ducted:

I’ve also been keeping the furnace on so that the rig doesn’t go below 15.

Silly me forgot to take into account the location of the thermostat. Even when it is 20 in here, it’s still below freezing in the fresh water compartment!

What’s the point of having a ducted compartment that you can’t keep warm unless you keep the inside of the rig at boiling temperatures?!

I am considering several things. The first is to cover as much of the floor in that compartment as possible with insulation. The second is to insulate it from outside with spray foam. The third is to replace the door into the compartment with something much more insultated. The fourth is to improve the insulation around the front door. The last is to run a cord with a low wattage light bulb into that compartment when we’re going to get these kinds of cold.

Incidentally, this is my third winter with this rig and only the first where I even noticed that the fresh water compartment is ducted! This confirms the manufacturer’s claim that rig was built to be usable to nighttime temps of minus ten. Now that I realise that I probably won’t have to do drastic measures to keep water circulating in cold weather, I’m really tempted to consider getting holding tank heaters. Not that I intend in spending another winter in Canada, yaddi yadda, you can all laugh next winter, etc. 🙂