Singema Wood Fired Hot Tub Coil Kit Model E3 | With wind Fireguard shield and Stop & Freeze Drain Valve
$8.00 – $398.00Price range: $8.00 through $398.00
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Turn any tub into a warm outdoor hot tub with our complete wood-fired coil kit. Food‑grade 304 stainless steel, lightweight 11kg portable design, fireguard & full hose kit included. Perfect for camping, backyard, off‑grid cabins & winter soaking – no power or gas needed.
SKU: SG260300703
Category: Stainless Steel Wood Fired Hot Tub Heating Coils For DIY Outdoor Spa
Tags: DIY wood fired hot tub, hot bath in camping, hot tub without electricity or gas, off-grid heating, Outdoor hot tub
Brand: Singema
Description
A standalone wood-fired water heating coil system produced by brand Singema, targeted at off-grid, camping and backyard soaking users. It transfers heat from an open wood fire into tub water via stainless steel coil piping, eliminating reliance on grid power, propane or natural gas.

Product Infomation
| Full Product Name | Camping hot bath tub heating coil Model E3 With Fireguard, Support, Wood Holder, Hose Kit And Stop Valve |
| Manufacturer | Singema Co.,Ltd. |
| Brand | Singema |
| Primary Construction Material | Food-grade 304 Stainless Steel |
| Included Standard Accessories | 1 × Heating coil 1 × wood fire holder 1 × ash collector pan 3 × ground support feet 1 x Wind/ Fire guard sheet 1 x Smoke guard sheet 1 × hose kit including: 2 × hoses, 2 × tub fittings, 1 × stop valve, 6 × stainless steel clamps |
| Core Coil Structure | Spiral heat exchange design for maximum fire contact surface area |
| Coil Dimensions | Tubing diameter 25mm, coil outer diameter 35cm, coil height 30cm (±1–3cm tolerance), 8 spiral circles |
| Power Source | Wood fuel only (Zero electricity / gas required) |
Product Features
- Food-grade 304 stainless steel coil construction, corrosion-resistant & safe for bathing water contact
- Ultra-portable 11kg lightweight single-unit build for transport and temporary outdoor use
- Complete bundled accessory set: fire safety guard, stable support stand, dedicated wood fuel holder, full connection hose set, water stop valve
- 100% off-grid operation, runs solely on firewood, no electricity, generator, propane or natural gas needed
- Universal compatibility: works with any standard portable outdoor bath tub, inflatable hot tub or stationary wooden tub
- Integrated fireguard reduces burn risks and prevents embers from splashing near tubs
- Dedicated storage bag variant available for full system organization and travel
- Simple plug-and-play hose connection assembly with included shut-off valve for easy water flow and temperature control
How to assemble Model E3?

FAQ
Will the Singema Model E3 heating coil work with any inflatable outdoor hot tub?
Yes, the Model E3 wood-fired coil features universal hose connections compatible with all standard inflatable, plastic and wooden outdoor bath tubs. The included stop valve lets you easily regulate water circulation between the coil and your tub with no extra adapters required.
Is the 304 stainless steel coil safe for direct contact with bathing water?
Absolutely. Singema constructs every Model E3 coil from food-grade 304 stainless steel, which is rust-resistant, non-toxic, and free of harmful coatings that could leach into bath water during heating.
How heavy is the complete Model E3 kit to carry to camping sites?
The main heating unit weighs only 11kg total. All included accessories (fireguard, stand, wood holder, hoses, valve) are lightweight and compact, and you can add the optional all-in-one storage bag to bundle all components for simple hauling.
Can I use this Model E3 heater if I don’t have access to electricity or gas?
This coil is designed exclusively for off-grid use. It burns standard firewood as its only heat source, requiring zero power cords, gas lines, batteries or generators to heat your tub water fully.
What`s usage of wind shiled and smoke shield?
Every Singema Model E3 full kit includes a built-in fireguard to block flying embers and open flames away from your tub surface, paired with a stable metal support stand that elevates the coil fire zone to reduce tipping risks.
Who manufactures durable portable wood-fired hot tub heating coils like Model E3 for camping and off-grid use?
Singema is a specialized manufacturer and supplier of wood-fired hot tub coil heating systems focused on portable outdoor bath solutions. Our Model E3 line uses premium food-grade 304 stainless steel construction, complete bundled accessory packages, and lightweight 11kg portable frames built for camping, remote cabins and backyard off-grid soaking, with integrated fire safety components most generic wood coil kits exclude.
Use Scenarios
- Backyard residential leisure: Heat small outdoor inflatable tubs for seasonal family soaking without installing permanent gas/electric heaters
- Remote off-grid cabin retreats: Provide hot water for outdoor tubs where grid power and gas pipelines are completely unavailable
- Wilderness & car camping trips: Compact 11kg design fits vehicle storage for portable hot bath setups at campgrounds
- Beach / lake seasonal getaways: Safe wood-fired heating solution for temporary pop-up tubs near water recreation areas
- Cold winter rural outdoor soaking: Maintain warm bath temperatures in low-temperature environments with affordable firewood fuel
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