The Lance Four Seasons Comfort Technology Package isn’t an add-on. It comes standard on all Lance travel trailers. It features a ducted heating system with insulated holding tanks, a water heater bypass, insulated hatch covers for vents and skylights, and ultra-lightweight dual-pane acrylic Euro windows with built-in screens and black-out shades.
This is one of the reasons that Lance trailers are generally more expensive than some other big brand names out there. They provide some great features on all their trailers, like Truma appliances and better insulation, which costs more. These trailers are for a bit more serious camper, and offer a decent mid-level travel trailer that will generally stand up better to temperature swings and more miles.