-CAUTION! Never burn the stove without the required amount of water in the hot tub. Otherwise, you may burn the stove and hot tub.

Correct and incorrect connection of the external stove
-The external heater and outdoor hot tub must be placed on a flat, solid surface.
It is important that the connection hose at the top connects slightly (with a little angle).
-The lower stove connection hose can be connected evenly.