The original Sasquatch coil. Full steel. Legit heat output. Built for off grid soaking.
Have your own tub and want to turn it into a hot tub for less?
Or heat your water while enjoying a real fire?
This kit is for you
No electricity
No pumps
No gas
Just wood, water, you and a view
🔥 Built for more than just bathtubs
Delivers roughly 40 to 50 percent more heating power than our Micro Coil
Faster heat up times
Handles larger tubs than the Micro with ease
Moves beyond small bathtubs into real setups
Precision-Spaced Coil Geometry
Every Sasquatch coil is built using precision tooling to maintain consistent spacing from end to end. This isn’t just for looks; it’s what allows heat to move evenly through the system.
That controlled spacing creates a smooth thermal profile along the tube, supporting stable thermosiphon flow and steady, predictable heating.
No surging. No dead zones. No fighting the system.
Just clean, reliable performance from a properly built coil.
Protected Stainless Construction
Each coil is formed using dedicated tooling and welded with shielding gas to protect both the inside and outside of the tube.
That means better corrosion resistance, cleaner internal flow, and long-term durability in real-world conditions.
This isn’t DIY tubing.
It’s purpose-built stainless, designed to perform off-grid; reliably, efficiently, safely, and repeatedly.
⚙️ Built to last
Made from food grade stainless steel
Resists corrosion salt acid and outdoor abuse
Engineered coil shape promotes smooth natural circulation for efficient heating without the use of pumps or any other gear
For the Sasquatch system, we focus on simplicity
🛠 Easy setup
Drill two holes in your tub
Push on/quick fit connections install in seconds
High heat silicone hoses hold shape over long runs
You can do it
🔥 Fire powered, Old school reliable ⚙️
No wires
No engines
No pumps
No gas
Just a bonfire some hot water
Keep it simple
📦 What’s included
Stainless steel heating coil
High heat food-grade silicone hoses
Food-grade quick fit connections
Thermometer
And good times
Note: No leg stands included. Set it on bricks rocks or whatever you’ve got. Performance is unchanged.
🛁 Best use
Ideal for bathtubs and 100 gallon stock tanks
Can handle larger volumes in fair weather seasons or with proper insulation
Lightweight and travel friendly
⏱ Heat up times
Depends on water/ambient temp, insulation and firewood
100gal ~ 1-2.5hr
Larger setups (170gal) take longer depending on the season (add insulation to retain your heat)
General range: ~1 to 4 hours in most real world wide range setups
More insulation = faster results
💡 Pro tip
Add boiling water from a pot to speed things up
Use a lid
Insulate your tub
⚠️ Safety
Always keep the top outlet submerged in water
If water flow stops the coil can overheat and release hot water or steam
Keep clear of the hot outlet and never block flow
🌎 Note for international orders
Import fees or duties may apply depending on your country
Relax, and enjoy the process 🔥🦧🌲
The original Sasquatch coil. Full steel. Legit heat output. Built for off grid soaking.
Have your own tub and want to turn it into a hot tub for less?
Or heat your water while enjoying a real fire?
This kit is for you
No electricity
No pumps
No gas
Just wood, water, you and a view
🔥 Built for more than just bathtubs
Delivers roughly 40 to 50 percent more heating power than our Micro Coil
Faster heat up times
Handles larger tubs than the Micro with ease
Moves beyond small bathtubs into real setups
Precision-Spaced Coil Geometry
Every Sasquatch coil is built using precision tooling to maintain consistent spacing from end to end. This isn’t just for looks; it’s what allows heat to move evenly through the system.
That controlled spacing creates a smooth thermal profile along the tube, supporting stable thermosiphon flow and steady, predictable heating.
No surging. No dead zones. No fighting the system.
Just clean, reliable performance from a properly built coil.
Protected Stainless Construction
Each coil is formed using dedicated tooling and welded with shielding gas to protect both the inside and outside of the tube.
That means better corrosion resistance, cleaner internal flow, and long-term durability in real-world conditions.
This isn’t DIY tubing.
It’s purpose-built stainless, designed to perform off-grid; reliably, efficiently, safely, and repeatedly.
⚙️ Built to last
Made from food grade stainless steel
Resists corrosion salt acid and outdoor abuse
Engineered coil shape promotes smooth natural circulation for efficient heating without the use of pumps or any other gear
For the Sasquatch system, we focus on simplicity
🛠 Easy setup
Drill two holes in your tub
Push on/quick fit connections install in seconds
High heat silicone hoses hold shape over long runs
You can do it
🔥 Fire powered, Old school reliable ⚙️
No wires
No engines
No pumps
No gas
Just a bonfire some hot water
Keep it simple
📦 What’s included
Stainless steel heating coil
High heat food-grade silicone hoses
Food-grade quick fit connections
Thermometer
And good times
Note: No leg stands included. Set it on bricks rocks or whatever you’ve got. Performance is unchanged.
🛁 Best use
Ideal for bathtubs and 100 gallon stock tanks
Can handle larger volumes in fair weather seasons or with proper insulation
Lightweight and travel friendly
⏱ Heat up times
Depends on water/ambient temp, insulation and firewood
100gal ~ 1-2.5hr
Larger setups (170gal) take longer depending on the season (add insulation to retain your heat)
General range: ~1 to 4 hours in most real world wide range setups
More insulation = faster results
💡 Pro tip
Add boiling water from a pot to speed things up
Use a lid
Insulate your tub
⚠️ Safety
Always keep the top outlet submerged in water
If water flow stops the coil can overheat and release hot water or steam
Keep clear of the hot outlet and never block flow
🌎 Note for international orders
Import fees or duties may apply depending on your country
Relax, and enjoy the process 🔥🦧🌲