Internal stainless steel heater for hot tub

Internal heater offers faster heating time then external wood fired heater as there is almost zero heat escape. The internal stove consumes around 25% of the tub’s space; however 180 cm wooden hot tub can still accommodate 6 people. An internal heater offer more atmosphere as you sit close to fire, therefore there are also few disadvantages of internal heater, as it can be dangerous to children, because heater is installed inside the Hot tub and it takes more time to clean it.