2026 Chinook Summit SS, This 2026 Chinook Summit SS Class B+ sits virtually new at just 71 miles and showcases the brand's reputation for solid construction with quiet, rattle-free cabinetry that owners consistently praise. The **rear-facing entry door** offers a unique layout advantage, while the **front living** area maximizes your social space with a **sofa that converts to bed** for flexible sleeping arrangements. Built for four-season adventures, this Summit features Chinook's Timberline hydronic heating system and superior insulation that handles cold weather camping with ease. The **rear bath** configuration provides privacy and convenience in this well-thought-out floor plan that's designed for easy setup and comfortable living on the road.