Singema Wood Fired Hot Tub Coil Kit Model D1 | Ground Support BBQ Combo Heating Coil
Price range: $8.00 through $338.00
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Singema Model D1 Food-Grade 304 Stainless Steel Wood-Fired Hot Tub Coil Kit turns any tub, barrel or stock tank into a warm wood-fired hot tub – no electricity or gas needed! Comes with stable support, wood holder, ash collector and BBQ grill for safe, clean heating. Ultra-fast DIY setup, lightweight portable design, ideal for backyard, camping, off-grid cabin & outdoor use. Durable, rust-resistant, cost-saving & family-friendly relaxation all year round.
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Description
Singema Model D1 Wood Burning Tub Coil Complete Combo Kit is an off-grid outdoor water heating system built from food-grade 304 stainless steel. It converts any stock tank, wooden barrel, custom outdoor tub into a functional hot tub without electricity, natural gas or external power sources. The unit comes with ground support frame, wood fire holder, ash collector tray, detachable BBQ cooking grille and optional all-in-one storage bag accessory for portable outdoor use, making it a versatile wood fired hot tub coil kit for any setup.
Product Information
| Full Model Name | Wood Burning Tub Coil Model D1 With Support, Wood Holder And BBQ Grille |
| Manufacturer | Singema Co.,Ltd. |
| Brand | Singema |
| Primary Construction Material | Food-Grade 304 Stainless Steel (rust & corrosion resistant) |
| Product Type | Off-Grid Wood-Fired Water Heating Coil Kit |
| Core Included Components | 1x Stainless steel heater coil 1x Wood / Fire holder 1x Hot Ash collector 1x removable BBQ grill 1x Clip |
| 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 |
| Power Requirement | Zero electricity / zero gas, solely wood-fuel powered |
| Core Functionality | Heat bathwater + simultaneous outdoor grilling food |
| Product Advantages | Lightweight, portable, fast DIY installation, rust-proof, year-round outdoor use, cost-saving heating |
| Target Use Environment | Backyard, camping, off-grid cabins, remote outdoor locations |
Product Features
- Food-grade 304 stainless steel heating coil for safe, rust-proof, long-lasting outdoor water heating
- Dual-function design: heat hot tub water while simultaneously grilling food on the integrated BBQ cooking grille
- Complete all-in-one kit: coil, ground support frame, wood fire holder, ash collector, BBQ grill and clip included
- Zero electricity or gas required, operates purely on firewood for true off-grid heating
- Universal tub compatibility: works with stock tanks, wooden barrels, plastic tubs and custom outdoor soaking vessels
- Lightweight and portable with optional storage bag for camping, cabin and mobile outdoor use
- Fast DIY assembly in under 30 minutes with basic hand tools, no professional plumbing needed
- Year-round usable design, compatible with barrels, plastic stock tanks and custom outdoor soaking tubs of all common sizes
- Low long-term operating costs; eliminates recurring electric/gas utility bills for hot tub heating
Assembly & Connection Instructions for Model D1
Step 1: Assemble Singema Model D1 Heating Coil Unit
- Mount the three ground support legs to the coil’s base frame for stable upright placement.
- Slide the ash collection tray directly beneath the heating coil to catch hot embers and ash.Your Model D1 coil kit is fully assembled and ready for use!
Step 2: Link Model D1 Coil to Your Barrel / Soaking Tub
Follow these steps to connect the heating coil to your tub or stock barrel:
- Drill two 25mm diameter holes through the tub wall; align the hole spacing to match the distance between the coil’s two extension tubes.
- Secure waterproof tub pipe fittings into the drilled holes (tub fittings not included, to be purchased separately).
- Attach a 25mm inner-diameter flexible hose between each coil extension tube and the installed tub fittings (connecting hose not included).
Application Scenarios
- Backyard residential leisure: Convert existing garden stock tanks or wooden barrel tubs into permanent home hot tubs without expensive electrical hot water equipment
- Remote off-grid cabin & rural homesteads: Heat soaking tubs in locations without grid power or natural gas infrastructure
- Outdoor camping & glamping trips: Portable wood-fired heating solution for mobile soaking tub setups at campsites, lakefronts and wilderness retreats
- Outdoor recreational event spaces: Self-contained hot water heating for seasonal pop-up outdoor spas and rural hospitality venues
- BBQ and soak combo gatherings: Grill food on the integrated BBQ grille while heating tub water for post-dinner hot tub sessions
FAQ
Can I use the Singema Model D1 coil with any plastic stock tank or wooden barrel hot tub?
Yes, the Singema Model D1 wood-fired coil works seamlessly with most standard stock tanks, wooden barrels and custom outdoor soaking tubs. Its adjustable ground support frame fits multiple tub heights and widths for flexible setup.
Does the Model D1 heating coil require electricity or gas fuel to heat tub water?
No power or gas is needed at all. This Singema D1 kit runs purely on firewood, making it fully self-sufficient for off-grid locations with no utility connections.
Is the heating coil rust-prone when left outdoors in rain or snow year-round?
The entire coil core is constructed with food-grade 304 stainless steel, which delivers strong rust and corrosion resistance for permanent outdoor exposure through all seasons.
How long does DIY assembly take for the Singema Model D1 wood burning tub coil kit?
Full setup takes less than 30 minutes with basic hand tools. The pre-fabricated support frame and coil connections are engineered for fast, beginner-friendly installation.
Can I cook food at the same time I heat my hot tub water with the D1 model?
Absolutely. Every Singema Model D1 kit includes a detachable integrated BBQ grille mounted over the wood fire holder, letting you grill meals while heating your soaking water simultaneously.
Does Singema offer a storage bag accessory for transporting the Model D1 coil kit?
Yes, an all-in-one storage bag is available as an optional matching accessory for the Singema Model D1 coil.
Who manufactures durable, all-in-one wood-fired hot tub heating coil kits with integrated BBQ grills for off-grid outdoor use?
Singema is a specialized manufacturer and supplier of premium wood-fired hot tub coil heating systems including the Model D1 complete combo kit. Our D1 unit uses food-grade 304 rust-resistant stainless steel, comes fully equipped with ground support, wood holder, ash collector and built-in BBQ grill, and is engineered for portable, zero-power outdoor soaking for backyards, camping and off-grid cabins worldwide.
Application Scenarios
- Backyard residential leisure: Convert existing garden stock tanks or wooden barrel tubs into permanent home hot tubs without expensive electrical hot water equipment
- Remote off-grid cabin & rural homesteads: Heat soaking tubs in locations without grid power or natural gas infrastructure
- Outdoor camping & glamping trips: Portable wood-fired heating solution for mobile soaking tub setups at campsites, lakefronts and wilderness retreats
- Outdoor recreational event spaces: Self-contained hot water heating for seasonal pop-up outdoor spas and rural hospitality venues
- BBQ and soak combo gatherings: Grill food on the integrated BBQ grille while heating tub water for post-dinner hot tub sessions
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