How To Seal a Wood-Burning Hot Tub

how to seal a wood burning hot tub

Wooden Hot Tubs – How To Solve A Leaky Tub

Wooden hot tubs are a classic staple. They're stylish, memorable and iconic. The advancements of more efficient materials have provided a more solid and durable foundation for current hot tubs. However, some people prefer the classic look of a wood-burning hot tub.

Since polypropylene, fiberglass and other materials were not available at the time, wood was trusted to create the shell of the tub. Unfortunately, the amount of moisture caused the wood to warp and distort over time leading to leaks in the shell of the hot tub.

How To Make a Wood-Burning Hot Tub

To make a wooden hot tub, you have to arrange wooden planks side-by-side, vertically around the perimeter of the hot tub. Similarly, line up the wooden planks for the base and the lid. It should also include a heating element such as a wood-fired stove or an electric heater.

How To Seal a Wooden Hot Tub

If you own a wooden hot tub and it springs a leak, you're going to have to repair it as soon as possible if you want to use your hot tub again. Hot tub manufacturers recommend plugging the leak by mixing sawdust with a small amount of water and turning it into a paste. Then it can be applied easily to the leaking area.

There are other things that can cause a wooden hot tub to leak. Leaking can also be caused by the use of chemicals, flaws in the construction, poor installation or damage to the hot tub. Leaks can even be caused by pest and insect infestations.

Many times, after purchasing a wooden hot tub, it is important to let the wood expand to its full saturation point, which in turn will close up any gaps that may be present. To help the wood expand, it must be kept in contact with water. This process can take up from a few days to a couple of weeks and depends on variables such as type of wood and climate.

In very few cases, there still may be tiny leaks present around the hot tub. When this happens, hot tub manufacturers recommend two solutions. The first one is using sawdust and a small amount of water to plug the leaks. Before applying, make sure that the hot tub is full of water, and then try to push the paste into the leaks. The force created by the existing water will draw the mashed-up sawdust into the leak, where it will expand causing the leak to be sealed.

The second option is using wood-colored water-resistant silicone. It should be applied to a leaky area while the tub is completely dry. Once it hardens, you may test it by filling the hot tub with water.

Day № Water loss (liters) Water level reduction (cm)
1 81 7.5
2 81 7.5
3 77 6.5
4 72 6.5
5 68 6
6 66 6
7 58 5.5
8 52 5
9 21 2
10 16 1,5
11 10 1
12 9 1
13 6 0,5
14 3 0,3
15 1 0,1

Water loss (Liters) per day in a two weeks time

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