Wood Fired Coil Kit
Wood Fired Coil Kit
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Wood Fired Hot Tub Coil Kit
The Coil Kit converts your own tub into a wood fired hot tub. Everything is included for quick and easy DIY installation; all you need is a power drill and the tub.
Powerful Heating Performance
The Coil Kit is powerful and efficient for quick heating times.
Average Heating Time to 40C (104F):
500L Uninsulated tub - 1.5 hours
800L Uninsulated tub - 2 hours
1,000L Insulated tub - 1.5 hours
1,500L Insulated tub - 2.5 hours
2,000L Insulated tub - 3 hours
No Electricity Needed! But How?
Our system runs on a natural flow called thermosyphon — no pump, no wires.
As fire heats the water inside the coil, hot water rises out the top and flows back into the tub.
At the same time, cold water from the bottom of the tub gets pulled into the coil to be heated.
This creates a steady, silent cycle powered only by fire and gravity.
Quick and Easy Installation
Installation takes about 20 minutes. It's a quick and easy DIY project; the only tool needed is a power drill. Just drill two holes, mount the wall ports, and hook up the hoses. Now you're ready to soak.
BBQ Grill Functionality
Place a grill, hot plate, or large wok over the coil to enjoy flame grilled food while the tub heats up.
What's Included
Customer Reviews
Works perfectly and gets plenty hot if you want it to…:which we do so we can jump into a frigid Lake Superior year round!
we got out of fire danger season i hope got the tub fired up realey great got it nice at 102 f steady it hard to fine tune but that ok thanks a bunch
Awesome product
Bought this hoping to heat a pool with it. High-quality all around, with easy enough setup. Definitely works for my purpose, and got me ~5-10 extra degrees F on a large above ground pool in Michigan. Did not use with a hot tub but after 10+ firings I am confident it will work, and I might even buy a tub this winter.
Fantastic craftsmanship I'm turning one of my old cold tub into a hot tub