5rv with the highest R factors
I'm looking for the manufacturer that has the highest R factors for insulation. We full-time in Missouri and currently are in a Montana. The Heartland Big Country is about the highest I'm finding. ...
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Our Heartland Landmark has stayed quite comfortable down to -6 degrees, with nothing freezing inside or out. Spent quite a few days this past January in temps from just above freezing to just below...insulation and cold weather prep worked great.
