Skip to product information
1 of 5

Wood Fired Coil Kit

Wood Fired Coil Kit

Regular price ¥225,000 JPY
Regular price Sale price ¥225,000 JPY
Sale Sold out

Wood Fired Hot Tub Coil Kit 

Our coil kit can be attached to your own tub to convert it into a wood fired hot tub. Everything is included for quick and easy installation, all you need is a power drill and the tub. 

Wine barrel hot 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 

Woof burning spa

No Electricity Needed! But How?

You only need two things to work your wood fired hot tub: water and wood. As the water is heated in the coil it begins to rise (hot water rises just like hot air). The water follows the spiral of the coil up and back out into the tub. Cold water from the bottom of the tub is sucked into the bottom inlet of the coil which starts a steady flow without a pump. This scientific phenomenon is called thermosyphon. 

Stainless steel hot tub coil

Quick and Easy Installation

 

Installing the Coil Kit to your tub takes about 20 minutes and the only tool you need is a power drill. Simply drill two holes in the side of your tub, screw in our universal through wall ports and connect the coil using the easy to connect fittings. The video below shows a quick overview of the installation process. 

BBQ Grill Functionality 

 Place a grill, hot plate or large wok over the coil to enjoy flame grilled food while the tub heats up. 

wood fired hot tub bbq grill 

What's Included 

Stainless Steel Heating Coil 
Fire Resistant Hoses 
Universal Through Wall Ports 
Quick Connect Fittings 
Thermometer 
Hot tub water heater

What's Not Included 

A Tub 
Firewood 
Power drill (to drill holes for installation)


Have Questions?

Visit our FAQ page

View full details

Customer Reviews

Based on 4 reviews
100%
(4)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
G
Gregory Howe
Hot tub Alaska

We have had other woodfired hot tubs with a Salty Barrel Hot Tubs kit is absolutely the easiest to install and so efficient. It works great. Even in the temperatures we experience in Alaska. I’ve used it in the dead of winter and we have been using it constantly for nearly a year now since purchase. The installation is so easy that we had ours assembled and fired up within hours of receiving it.
Thank you for making such a great product

A
A.B.
Yooper Hot Tub

With a 100 gallon stock tank, I have an off grid tub that takes just 15 minutes to fill and about 2-3 hours to heat. The physics works just like it should and the quality of the tubing and hoses is excellent.

R
Rod Luscombe

I attached the coil to an old cast iron bath. Lined up two side by side facing the sunset. The result was an awesome and unique experience for our glamping guests

A
Angela DeCicco
PHENOMENAL

We have an off grid property on the water and wanted to enjoy a hot tub under the stars without having the noise of a generator. I came across Salty Barrels website. We purchased a 90 gallon stock tank and the set up was dummy proof. The quick connect set up is exactly that in less than 5 minutes we were ready to get a fire going!
With hard wood it takes 2 hours to bring 90 gallons of mountain fed water (which is always ice cold) to a dreamy 105 degrees. The Coil is simplistic and functions without any electricity or propane. We’ve had ours for over a year and use it 4 days a week 12+ hours a day (we keep it going for the wknd) and it’s still as solid and sturdy as the day it was delivered. What are you waiting for??? Go get yourself a Salty set up, you won’t regret it!