Extra Large Back Panel matches the front panel. Wrap-Around Cord Design Lets you store cord when heater is not in use. Vertical Thermal Chimneys provide faster heat circulation and better air-flow temperature. Permanently Sealed Never needs refilling! Unit is permanently sealed with pure diathermic oil for stable and efficient heating. The timeless retro design of this heater, with stainless steel finish, chrome accents and vintage-style controls, beautifully complements any home environment. Patented Smart-Snap Wheels Convenient pre-mounted wheels ensure safety and stability. With their patented design, they snap place perfectly - no assembly required.