Product Type Hydronic Baseboard Heater Elements Maximum Pressure 660 psi Output @ 2 PSI Steam 1 600 BtuH 2 250 BtuH Overall Height 4 1/4 in Overall Length 3 ft Overall Depth 4 1/4 in Max Heat/Linear ft @ 180 F Water Temp 1 080 BtuH 1 640 BtuH Max Heat/Linear ft @ 200 F Water Temp 1 350 BtuH 2 040 BtuH Maximum Fluid Temperature 650 Degrees F Length 3 ft Compatible with Product Type TP14-03 TP20-03 Connection Size 1 1/4 in Tube Size 1 1/4 in Tubing Material Steel