Turn this knob to the left then this other knob to the right, press the red button, switch on-and Bob's your uncle.
先将这个旋钮往左拧,然后再将这另一个向右拧,接着按下红色的按钮,再打开开关—这就完事了。
2
Damper: both gas flow regulating button and wind board are high grade PP material, connected with 304 stainless steel bar, manually adjust the outside valve knob, control air flow.