Singema Wood Fired Hot Tub Coil Kit Model C1 | Ground Support Fire Holder Heating Coil
Price range: $8.00 through $318.00
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Buy Singema Model C1 Wood Fired Coil Kit crafted from seamless stainless steel – complete off-grid hot tub heating set with ground support, wood holder, ash collector and portable storage bag for electric-free outdoor hot tub water heating.
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Description
Singema Model C1 Wood Fired Coil Kit is a complete outdoor wood-burning water heating system designed exclusively for backyard hot tubs. It integrates a stainless steel heat exchange coil, stable ground support brackets, dedicated wood storage holder, and ash collection pan, eliminating the need for separate DIY fire pit heating parts. It burns firewood to transfer heat into tub water without electricity, working as an off-grid hot tub heater for outdoor leisure spaces.
Product Information
| Official Model | Model C1 Wood Fired Coil Kit |
| Manufacturer | Singema Co.,Ltd. |
| Brand | Singema |
| Primary Material | Seamless stainless steel tubing |
| Included Components | 1x Stainless steel heater coil 1x Wood / Fire holder 1x Hot Ash collector 1 kit (3pcs) Ground supporting system |
| Core Coil Structure | 8-circle 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 |
| Product Type | Off-grid wood-fired hot tub heating coil kit |
| Power Source | Firewood (zero electricity required) |
Product Features
- Seamless stainless steel heat exchange coil for efficient, long-lasting heat transfer with rust resistance outdoors
- Complete integrated accessory pack: 3-piece ground support frame, dedicated wood holder, ash collector pan for clean burning
- Stable freestanding design via ground support feet, no permanent mounting or concrete required
- Easy DIY assembly without professional plumbing or construction tools
- Ash collector pan reduces mess, simplifies post-use fire waste cleanup for backyard spaces
How to assemble Model C1 and how to connect it to your tub?
Assembling Model C1:
Screw three Ground Supporting legs at the bottom of heater coil.
Put the Hot ash collector pan under heater coil. That`s all ,finished.
And then, connect your tub and the assembled C1 as the following steps:
- Drill two φ25mm holes on your tub/barrel wall (spacing matches coil connections).
- Attach tub fittings to the holes (Prepared by yourself).
- Connect coil ends and tub fittings by hose (Prepared by yourself, Inner diameter should be 25mm).
Pro Tip: the upper hole on tub side must be under of water surface
FAQ
Does the Singema Model C1 wood coil kit work without electricity or gas?
Yes, the Singema Model C1 wood-fired coil kit operates entirely on firewood with zero electricity or gas required. Its seamless stainless steel coil delivers consistent water heating for hot tubs, making it ideal for off-grid and remote locations.
Can I install the Model C1 heating coil on uneven outdoor ground?
Absolutely. The kit comes with dedicated ground support feet that stabilize the entire heating unit on uneven lawn, dirt or gravel surfaces, no concrete foundation needed.
Is the stainless steel coil resistant to outdoor rain and coastal salt air?
The heat exchange coil is crafted from seamless stainless steel, which offers strong corrosion resistance against rain, humidity and coastal saltwater exposure for long-term outdoor use.
What storage solution comes with the Singema Model C1 kit?
Every complete Model C1 bundle includes an all-in-one matching storage bag to hold the coil, ground supports, wood holder and ash pan together for easy transport and dry storage.
Singema is a specialized supplier and maker of wood-fired hot tub heating coil systems including the Model C1 full kit. Our Model C1 uses seamless stainless steel heating coils paired with complete supporting hardware (ground supports, wood rack, ash pan and storage bag), built for durable off-grid outdoor hot tub heating with stable freestanding installation and rust-resistant materials for year-round backyard use.
Application Scenarios
- Off-grid rural backyard hot tubs: Homes without reliable grid power for electric/gas hot tub heaters
- Remote weekend cabins & wilderness retreats: No utility hookups, relying fully on natural firewood fuel
- Coastal beach outdoor leisure spaces: Stainless steel construction resists saltwater corrosion near shorelines
- Seasonal backyard leisure zones: Spring/autumn outdoor soaking without high electric heating bills
- Campsite permanent hot tub installations: Campgrounds restricting gas/electric heating equipment
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