Lid for internal stove is made of stainless steel.
Leather lid for hot tub basis form by three layers.
External water release faucet is easiest way to release water out of the hot tub
Double bottom and insulation for hot tub is 8 cm thickness.
Thermal wall insulation for hot tub is 7 cm thickness.
Chimney protection of hot tub internal or external stove.
Ash shovel and rake are for internal hot tub stove.