How This Engineer Made a DIY Wood-Fired Hot Tub for Under 250 Bucks [VIDEO]
Most people would love to have a hot tub in their backyard, but given the expense of most hot tubs on the market, it’s hard to justify putting that much of your hard-earned cash into a luxury item. Well, engineer Ben Uyeda has a solution – a self-made wood-fired hot tub for a fraction of the price.
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The best part of this DIY hot tub? It takes about two hours to complete and only costs $250 for materials. In a video published on Youtube, Uyeda starts his project by getting a 169 gallon galvanized steel tank that measured 6’x2’x2 for the base of his tub. He explains you don’t want the tank to sink into the ground, so he cast a couple of footings with packed gravel.
To make sure the castings don’t move once the tub is on top of them, he puts a fast-setting Quickrete concrete mix in them and lets it set for 24 hours. He then covered his shallow hole with the castings made from the gravel and Quickrete.
The engineer then shifts his attention to heating the tub. He explained that he using 20 feet of 1/2″ copper tubing that he wrapped around a five-gallon bucket in order to create the shape of the copper tubing. To make sure the copper doesn’t bend, he also uses 1″ x 1/4″ steel bars.
Using a hole saw, he then created two “1 x 3/8” diameter holes 18 inches apart that he’ll use to transfer the heat to the tub. Just make sure to seal the holes with silicon. The steels bars were then pounded into the ground to hold the copper.
To keep heat from escaping from the hot tub, Uyeda made a wooden lid to lay on top of his makeshift hot tub. With two big armfuls of wood and about two hours to heat the water, Uyeda’s project is done!
Lucky for us, his project is easily recreated by anyone with decent DIY skills. Men and women around the world can rejoice as they save hundreds, if not thousands, of dollars on a hot tub.