Suburban NT-SQ RV 16,000 BTU FurnaceIncredibly compact, lightweight and efficient with low amp draws. Cut out dimensions 10 3 16 in. H x 10 9 16 in. W. The NT SQ series are ducted models that provide even heat distribution throughout the coach. The NT SEQ series are direct discharge with attractive grills for zone heating of smaller interiors. Quality you want down the road. Go beyond the ordinary. Quality and innovation. 3. 1 Amp 16,000 BTU hour Model: NT 16SQ 12 Volt Customer Care: