Yesterday, my goodfriend Mr. Seo sun-hong gift to me this heater. Thanks my friends captin heater have two glass style heater. SV 101 and SV 201 . this is SV 201 model. 201 model have look like donut style one coil part and chimmey style expeically silence cap. 101 model have two coil part but did not silence cap include. flame is very beautiful and very warm. Gunsoo two immovable pins. chimmey style silence cap. captin 201 stove . captin 201 stove and SV201 heater. two immovable pins.