In what episode do Carl and Harriette visit a cabin when it's snowing and it's missing a wall and a moose walks in?

I've tried to find this episode with no luck.

Thanks! Just watched this episode. It was a goat, not a moose
Funny episode!

To me, that place could've been completed. According to the guy who showed them the place, there wasn't enough money to build with what the rest of the place was built with. Why not just put up a floor to ceiling window glass and have a big curtain be there to cover it up for those who want privacy? I once stayed in a hotel room with one wall that was nothing but a window instead.

God bless you always!!!

Holly