I really like the wood framing in my Nash 25c. I had an Arctic Fox camper that was aluminum framed and even though it was well insulated it showed moisture on the inside walls where the frame was. This was the only place you could see moisture, weird phenomenon that does not happen in my wooden framed trailer i now have. Im guessing it was transferring the cold from the outside through the aluminum into the inside wall. You could see a grid pattern if u looked closely in the right light, or u could feel the moisture with your hand. The Nash models have heated enclosed tanks and valves, thermal windows, and a good R value. I have camped for 1 week using furnace nightly boondocking and my 2 6volt batteries will go down to about 70% in one night with some tv use, and the furnace set at 21deg Celsius. I would say it cycles on about once every 45min and runs for about 10min at about -3 Celsius. Nothing has ever frozen on me. No valves etc. The weakest link on these trailers is the outside shower, they are suseptable to freezing and i would recommend leaving them winterized with antifreeze. (dont flush them out when u dewinterize when winter camping). I am very pleased with the winter performance of the trailer, and in summer the sun doesnt make the trailer an oven. Holds the same temp as the outside air temp. My best friend has a ORV Creekside 23BHS and it also performs well in sub zero temps and he is also happy with his choice. Nash 17k is a nice little trailer with no slide and large rear window.
2015 Nash 25C bumper pull /w 300watts solar
my installMy Truck & RV youtube channel 2005 F-350 Diesel 4x4 CC SB SRW
2001 Honda XR400: many mods
12ft Lund WC boat & 9.9 Yamaha 4 stroke on custom loader.