Green, I bet you are right about the underside of the roof -- that makes sense. Tiger, we fastened a towel under the a/c vent to catch the occasional drip -- it did the job, but it was not pretty. The trailer is not really enclosed -- we have the hatch open in the bathroom at night, and the vent hood is open (we took off the flap).
But when it is ten degrees outside, and since we never run the heat at night (because it is noisy and because we have a down comforter!), it is often 34 or lower when we wake up. The lowest has been 28. There is often ice on the window frames. We then run the heat for a minute, and we then run around wiping up melting ice.
It's part of the price we pay for cold weather camping -- there will be condensation, and there will be ice, and it will be a bit of a mess. But I was hoping that there was a magic way to avoid the drip from the a/c, and I bet that it can't be avoided. Oh, well.
And one more thing -- 2oldman, this is not about being tough at all. We are not tough, I am sad to say. We dress like Eskimos and do our best to cope with the cold temps.
