Premium Stainless Steel Wood Fired Hot Tub Coil Thermosiphon DIY Fire Pit Heating Coil

Premium Stainless Steel Wood Fired Hot Tub Coil - Thermosiphon DIY Fire Pit Heating Coil Close-Up

Premium Stainless Steel Wood Fired Hot Tub Coil in outdoor barrel soaking tub scene

Premium Stainless Steel Wood Fired Hot Tub Coil | Fire Burning Tub Basic Component

$298.00 Free shipping

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SKU: SC26070443 Category: Wood Fired Hot Tub Component Heating Coils Brand: Smartclima

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This premium stainless steel wood fired hot tub coil is a DIY thermosiphon fire pit heating solution specially designed for barrel soaking tubs. Crafted from high-grade corrosion-resistant stainless steel, this wood burn heating coil relies on natural thermosiphon circulation to heat spa water without electric pumps, making it an energy-efficient off-grid heating accessory for outdoor wooden barrel hot tubs, backyard fire pit spas and DIY soaking barrel systems.

Premium Stainless Steel Wood Fired Hot Tub Coil – Model A1

Manufacturer	Smartclima Co.,Ltd.
Brand	Smartclima
Primary Construction Material	Food-Grade 304 Stainless Steel, seamless tubing, rust & corrosion resistant
Core Coil Structure	8-circle spiral heat exchange design for maximum fire contact surface area
Coil Dimensions	Tubing diameter 100mm, coil outer diameter 35cm, coil height 30cm (±1–3cm tolerance), 8 spiral circles
Parts included	1 x coil
Operating Mechanism	Passive thermosyphon gravity circulation (no electric pump/wiring needed)
Installation Difficulty	Beginner-friendly full DIY assembly, only basic hand tools required
Compatibility	All standard outdoor tubs: wooden barrels, metal stock tanks, foldable plastic soaking tubs
Core Function	Heat tub water solely via burning firewood for off-grid hot soaking

Our DIY fire pit heat exchange coil features seamless welding structure, stable heat transfer performance and long service life, perfectly matching all common wooden barrel hot tub models. Install this thermosiphon heating coil inside your fire pit to realize fast water heating, eliminate reliance on electric water heaters, and create eco-friendly, low-cost outdoor hot tub soaking experience for home backyard, cabin off-grid living and outdoor leisure scenes. Ideal DIY replacement heating coil for homemade barrel hot tub, wood-fired spa, outdoor soaking barrel and backyard fire pit heating projects.