The Basic Operation of Wood Fired Hot Tubs and Wood Burning Stoves

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Wood fired hot tubs are more common in rural areas than in towns, not because rural people belong to the old school but because there is plenty of timber in the rural areas. First things first, the mechanism of how a hot water tub works is simple. Warmth comes with fire, and therefore there is a need for a hot water tub heater. Heaters can either be mounted externally or externally; mostWood Fired Hot Tubs people preferring external heaters. Most heaters are made of stainless-steel material.

How wood-fired hot tub works

Gravity is the most important factor here, and this implies that hot water rises because, upon heating, it becomes light. On the other hand, cold water gets down, and the process constantly continues until all the water is heated. Heaters that are made for fired hot water tubs have a warmth replacement feature.

Heaters that are mounted externally have lower and upper connections. The lower connection releases warm water, which rises because it is light and is Taken through the higher connection. The heating cycle is constant.

Advantages of a wood-fired hot tub

The overall running cost of using a fired hot water tub is minimal. You can drain the water out of the hot water tub, clean the ash and bathing area and refill the tub next time you want to use it.

Fired hot tubs are beautiful and have a stylish design, unlike electric hot tubs. They are designed to last longer by integrating modern and traditional materials in their design.

Using wood is more fun than using electricity, and the other merit of wooden hot tubs is that you can change your bathing spot when you want, provided you can get water to your hot tub.

The time you will need to heat your water before taking a bath depends on various factors such as the water temperature, the heater, and the tub’s size. Typical heating can take two to three hours or less, depending on the dominant factors.Wooden Hot tubs

You can regulate the water temperature by regulating the amount of air and wood supply to the heater. Adding cold water to the hot tub from the hosepipe is also another way of controlling temperature. Before lighting the stoves, ensure that you fill the hot tub with water above five centimeters from the upper connection pipes before lighting the heater. It would help if you never heated the hot tub when it is empty or half empty because it will melt as a result. Always ensure you put off the heater before emptying the tub.


Heating Rate* of Various Size Wood Heaters
Water Volume Water Mass Temperature Rise F/hour
US Gal lbs Small

Camp Fire (35 MBH)


Blaze(55 MBH)


Inferno (105 MBH)

100 833 42.0
200 1666 21.0
300 2499 14.0 22.0
400 3332 10.5 16.5
500 4165 8.4 13.2
600 4998 7.0 11.0 21.0
700 5831 6.0 9.4 18.0
800 6664 8.3 15.8
900 7497 7.3 14.0
1000 8330 6.6 12.6
2000 16660 6.3
3000 24990 4.2
5000 41650 2.5
10000 83300 1.3
*Excludes heat loss of tub/pool

Wood Fired Cedar Hot Tub - Internal Stove - 3 PersonCleaning and taking care of my hot tub

Cleaning the hot tub can be done using a natural multi-surface cleaning spray which biodegradable and or a high-pressure hosepipe. After draining the water, you need to leave the drain tap open to drain off the pipes.

Most people fill their hot tubs and use them twice or thrice and then drain the tub. In such a case, there is no need to use chemicals to clean your tub. It is important to sanitize your hot tub with a non-chlorine shock element.

Final thoughts

A fired hot tub is the way to go for you to enjoy your leisure and incur the least electricity cost possible. The thumb rule is to ensure you do not heat an empty hot tub lest you destroy the heater.


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