Wood-fired hot tubs are heated by building and lighting a fire in the stove or heater that is attached to the tub. The heat from the fire is transferred to the water through convection, warming up the water.

If you're struggling to get the fire going, why not try keeping the stove door open for a better airflow at first and shutting it only when your kindling has taken. Don't forget to use a thermal cover over your tub to ensure you heat the water more efficiently.

The time it takes to heat a wood-fired hot tub varies depending on the size of the tub, the temperature of the water, and what sort of cover you're using. On average, it takes between 2-4 hours to heat a wood-fired hot tub to a comfortable temperature.

In reality, you could use most types of wood (or other briquettes) to heat your hot tub. We'd suggest kiln-dried hardwood. Kiln-dried wood will be much easier to establish in the stove. And hardwood will burn for longer, giving you a more even heat during your bathing experience.

Yes, wood-fired hot tubs can be used in the winter, and many people prefer the experience in winter. However, extra precautions must be taken to protect the tub from damage due to freezing. This includes draining the tub if it will not be used for an extended period of time and keeping the fire going to maintain a consistent temperature.

Drain the water from your hot tub and use a mild soap and water solution to clean the interior and exterior surfaces. Rinse thoroughly, and refill the tub with fresh water when you're ready to use it again. It's also important to clean out the stove or heater periodically to remove any ash or debris.

Many people who bathe in a tub regularly choose to keep the same water for extended periods of time. If this is the case it's strongly advised you use a filter and tablets (chlorine or non-chlorine), and a cover to remove debris and prevent dangerous bacteria from forming.