How to Build a DIY Wood-Fired Hot Tub

During the winter, I enjoy having a warm bath because it relaxes my muscles and brings me comfort amidst the cold temperature. But, at the same time, I would also love to enjoy the outdoors, and the best way I can achieve both is by having an outdoor hot tub.

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I also wanted something that’s not supported by electricity because I think that’s more practical and it will work even when the power is out, all I need is a pile of wood chunks, and I’m good to go. This is why I decided to build this DIY wood-fired stock tank tub by Makers Central on YouTube.

Materials for DIY Wood-Fired Hot Tub:

• 6′ x 2′ x 2′ stock tank
• ½” copper tubing
• 1′ x ¼” steel bars
• Square wood frame
• Gravel
• Fast-setting concrete mix
• Sand
• Rake
• Tamper tool
• Shovel
• Saw

How to Build a DIY Wood-Fired Hot Tub:

Step 1

Place the tank where you want it to be, then trace the ground, and dig the area until it’s a few inches down. Pour in some gravel and press it down, then place 2 square wood frames, and fill the inside of the frame with a mixture of concrete mix and water.

Step 2

Level the surface of the concrete, then let it set until hardened and remove the wood frames. Pour the soil you dug earlier back into the area and around the sides of the stone, then press it down firmly, pour gravel over it, and rake it evenly.

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Step 3

Pour sand all over and even it out, then place the stock tank on the area, and prepare the copper tubing as demonstrated in the video. Drill a hole at the bottom and upper part of the tank’s side, then attach the through-wall fittings, and put the push-to-connect fittings.

Step 4

Attach the ends of the copper tubing to the bottom and upper fittings, then fill the inside of the coiled tubing with wood, and light it on fire. Make sure to fill the stock tank with water at this point as well, then cover the top, and wait for the water to reach the right temperature.

Note: This tub can overheat and cause burns so make sure to watch the temperature and put out the fire of the wood on the coiled tubing at the right time.

*All image credit belongs to Makers Central via YouTube. Follow and subscribe to their channel for more! 

How to Build a DIY Wood-Fired Hot Tub