SUBURBAN NT-16SQ 2444A 12 VOLT RV CAMPER MOTORHOME GAS DUCTED FURNACE 16000BTU These Suburban NT Series furnaces are incredibly compact and lightweight. Electric Ignition 16,000 TO 19000 BTU/H Dimensions 9 1/2" H x 9 3/8" W x 22 1/2" D Ducted