The present invention provides a combustion device, which includes a fuel tank assembly and a candle wick. The fuel tank assembly includes a first tank, a second tank, a connection tube, and a switch. The capacity of the second tank is less than the capacity of the first tank. An end of the connection tube is connected to the first tank, and another end of the connection tube is connected to the second tank. The connection tube communicates with internal spaces of the first and second tanks. The switch is disposed between the first and second tanks so as to selectively open or close a channel interconnected between the first and second tanks. The candle wick is mounted in the second tank. Therefore, the combustion device is easy to use by the above structure.

The present invention provides a combustion device, which includes a candle wick and a flow guiding assembly. The flow guiding assembly includes a support, a plurality of guide vanes secured to the support, a first shield member fixed at a side of the support, and a second shield member pivotally connected to the first shield member. The second shield member is pivotable in relation to the first shield member between a closed position and an open position to selectively form a gap. The plurality of guide vanes is disposed between the first and second shield members. The candle wick is disposed between the plurality of guide vanes. Therefore, the combustion device is easy to use by the above structure.

Disclosed is a candle including a combustion part; a wick support that is mounted to be attachable to and detachable from a bottom surface of a center of a storage space of the combustion part, has a flow tube, in which a fuel fed through a through-hole is able to flow upward due to capillary action, formed therein at a center of an inner portion to allow an upper surface and a lower surface to communicate with each other, and has a wick insertion hole formed at a center of the upper surface to allow a candle wick; a storage part having a fuel supply through-hole formed in one side surface of a lower portion; and a fuel supply communication part mounted to allow communication between the fuel accommodation through-hole of the combustion part and the fuel supply through-hole of the storage part.