... copper valve core more safe New Star Heater 2 in 1 High Quality Good Cooker&Good Gas HeaterAPG advantages:A ... more happier. It has the following unique features:1. imported heat-resistant fire net, net life more ... than 10years.2. pure copper valve core, pure copper gas ... function with flame control lever, heater and cooker 2 in 1, whole unit life more than 10 years.4. ...