FCW17: 120 Volt - 400 Watts - 3.33 Amps - Max Temperature 90 °F (± 10°F). Fits 17 Gallon Cylinder. Powerblanket has changed the conventional method of transferring heat to temperature sensitive spray foam systems. The revolutionary design provides uniform heat across the entire system, thus eliminating any hot and cold spots. Powerblanket products provide a maintenance free heating solution, which eliminates the headache of maintaining critical temperatures. If stored properly, spray foam systems will last longer and be more effective. In turn, this saves time, hassle, and money.