ERT240-1.5x14 Size: 1"6" x 14, 21 sq.ft. Features: -Volts: 240.-UL and CSA certified. Specifications: -1"5" x 6", 9 sq.ft.: 108 Watts, 0.45 Amps.-1"6" x 8", 12 sq.ft.: 144 Watts, 0.6 Amps.-1"6" x 10", 15 sq.ft.: 180 Watts, 0.75 Amps.-1"6" x 14, 21 sq.ft.: 252 Watts, 1.05 Amps.-1"6" x 20", 30 sq.ft.: 360 Watts, 1.5 Amps.-1"6" x 25", 37.5 sq.ft.: 450 Watts, 1.875 Amps.-1"6" x 30", 45 sq.ft.: 540 Watts, 2.25 Amps.-1"6" x 35", 52.5 sq.ft.: 630 Watts, 2.625 Amps.-1"6" x 40", 60 sq.ft.: 720 Watts, 3 Amps.-1"6" x 45", 67.5 sq.ft.: 810 Watts, 3.375 Amps.-1"6" x 50", 75 sq.ft.: 900 Watts, 3.75 Amps. Dimensions: -6" H x 1"5" W, 9 sq.ft., 0.95 lbs.-8" H x 1"6" W, 12 sq.ft., 1.30 lbs.-10" H x 1"6" W, 15 sq.ft., 1.55 lbs.-14" H x 1"6" W, 21 sq.ft., 2.20 lbs.-20" H x 1"6" W, 30 sq.ft., 3.30 lbs.-25" H x 1"6" W, 37.5 sq.ft., 4.55 lbs.-30" H x 1"6" W, 45 sq.ft., 5.05 lbs.-35" H x 1"6" W, 52.5 sq.ft., 6.10 lbs.-40" H x 1"6" W, 60 sq.ft., 7.20 lbs.-45" H x 1"6" W, 67.5 sq.ft., 8.45 lbs.-50" H x 1"6" W, 75 sq.ft., 9 lbs.