Quote:
Originally Posted by glennwest
Is the Newmar Cypress a good candidate for full timing? Noticed the insulation rating in side walls even with "diamond pk" has only a r8 rating. Floors, roof, and ends are upgraded to r19 but not the walls. I will be chasing shutdowns with my rv. Will be in some rather cold climates at times. Looking for a used unit and found a Cypress with "diamond pk" reason why I'm asking. 
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I special ordered a Newmar Mountain Aire 5th wheel in 2001 and we lived in it for 5 years in Virginia. One time I swept 9 inches of snow off the roof, and temps got as low as zero several times. The sidewalls of the Mountain Aire were probably about R10, and we never were cold at any temperature. We were also cool in the summer with air conditioning.
Unless you will be in sub-zero temps for extended periods of time, you should be just fine with the Cypress.
The main thing is to make sure the unit has dual pane windows. They really help.....a lot.
We wanted a coach, so we traded the Mountain Aire 3 years ago for a Newmar Kountry Star diesel pusher. We are fulltiming in that, and last winter it was below zero several days. You should have no problem with any newer Newmar unit in cold weather.
One caution though, if your refrigerator has an icemaker/water dispenser (either or both), you may want to cover up about 50-75% of your outside vent. If temps get near zero or below, and the wind whipps just right, that automatic icemaker/dispenser valve WILL freeze and burst. Been there--done that. Block the wind and you're good to go. Just remember to uncover the vent when temps get back over freezing. we used pool noodles in the vent slots. Worked great. Norcold refrigerator.