16K BTU FURNACE The Suburban NT-SE series furnaces are incredibly compact & lightweight, designed to meet the requirements of todayÂ´s smaller recreational vehicles. While these 12-volt DC units have very low amp draw (2.8), they are capable of heating complete living areas quickly and efficiently. All four models have energy saving solid state electronic ignition and feature sealed forced-draft combustion. The NT12-SE and NT16-SE require no ductwork and are provided with a decorative discharge air grille. Wall thermostat, gasket-sealed vent assemblies and chrome plated vent caps are included with all models. The NTS Series furnaces are ducted models for even heat distribution in larger coaches. Two or more units may be used for zone heating. Cabinet size for all 4 models is 9 3/8"H x 9 3/8"W x 21 1/8"D.