Singema Wood Fired Hot Tub Coil Kit Model B1 | Basic BBQ Combo Heating Coil
Price range: $8.00 through $308.00
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Singema Model B1 304 Stainless Steel Wood Fired Hot Tub Coil Heater Kit with Rotatable Detachable BBQ Grille – Off-Grid Pump-Free Thermosiphon Heating for DIY Outdoor Soaking Tubs, Complete All-In-One Portable Kit with Storage Bag.
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Description
This is the Singema Model B1 Wood Fired Hot Tub Coil Kit (Basic BBQ Combo). It is an external, pump-free wood-burning water heat exchanger made of food-grade stainless steel, engineered for DIY outdoor soaking tub setups. It features a detachable rotating BBQ grille that lets users grill food while heating tub water via natural thermosiphon circulation, fully off-grid with zero electricity required. Sold by Singema as a complete all-in-one kit including a dedicated storage bag for portable transport. See all coil kit models to compare configurations.
Product Information
| Item Category | Details |
|---|---|
| Official Model Number | Singema Wood Fired Hot Tub Coil Kit Model B1 | Basic BBQ Combo Heating Coil |
| Manufacturer | Singema Co.,Ltd. |
| Brand | Singema |
| Primary Material | Premium 304 Stainless Steel seamless pipe, corrosion & high-temperature resistant |
| Core Working Principle | Thermosiphon passive water circulation (no pump, no electricity) |
| Key Unique Accessory | DIY Off-Grid Hot Tub Heater Kit with Dual Heating + Rotatable detachable stainless steel BBQ grille |
| Included Kit Parts | 1× Food-grade stainless steel heating coil (8-circle design) 1× 35cm diameter BBQ grille (food-grade stainless steel) 1× Clip ( Move BBQ Grille aside to add wood into heater coil / Take or flip over food ) |
| Compatibility | Wooden tubs, stock tanks, inflatable PVC soaking tubs, poly outdoor water vessels |
Product Features
- Dual-purpose integrated design: Heats hot tub water AND supports outdoor BBQ grilling simultaneously via rotatable removable grille
- Fully off-grid operation: Relies on natural thermosiphon convection; no electric pumps, power cords or grid connection needed
- Long-lasting 304 seamless stainless steel coil: Resists rust, saltwater, chlorine and high fire temperatures for multi-year outdoor use
- Complete all-in-one kit with matching storage bag (optional): All parts store neatly for camping, beach, cabin or remote travel transport
- Simple 10-minute DIY installation: Only a drill required to mount wall ports and connect hoses, no professional plumbing skills needed
- Rotating BBQ grille: Adjustable position for even heat distribution while grilling burgers, veggies, sausages during tub heating
- Efficient heat transfer spiral coil geometry: Maximizes flame contact surface to cut heating time vs flat pipe competitors
- Single-unit portable footprint: Lightweight coil assembly easy to move between outdoor locations without heavy firebox hardware
- Zero moving mechanical parts: Minimal wear, low maintenance, no breakdown risks from pumps or motors
- Universal connection fittings: Compatible with all standard DIY hot tub hose & wall port hardware
How to Assemble the Wood Fired Hot Tub Coil B1?
Assembling your Model B1 wood fired hot tub coil takes less than 1 minute, no technical skills needed:
- Unpack the wood fired hot tub coil and 2 extended tubes.
- Screw the extended tubes onto coil`s ends (hand-tight is sufficient, no tools required).
- Connect the coil to your DIY wood fired hot tub’s water system with your own hose.
Final image after assemble as following:
FAQ
Does Singema Model B1 coil heater require electricity or a water pump to work?
No. The Model B1 stainless steel coil runs entirely on thermosiphon natural convection. Hot water rises automatically back to your tub, cold water recirculates to the coil, zero pumps, wiring or grid power required.
Can I remove the BBQ grille and use the coil just for heating my hot tub?
Yes, the grille is fully detachable and rotatable. Remove it if you do not need it, or reattach it any time you want to grill food while the water warms up.
Is the stainless steel coil resistant to coastal saltwater and chlorine-treated tub water?
Yes, we use top-quality seamless stainless steel. It resists corrosion from salt, chlorine and outdoor rain exposure far better than carbon steel or copper competitor coils.
How complicated is installation for someone with no plumbing experience?
Installation takes roughly 20 minutes. You only need a drill to create two wall ports on your tub, attach the supplied fittings and connect fire-resistant hoses. Review our safety guidelines before first use.
Can I bring this Model B1 kit traveling for camping or beach trips?
Absolutely. The matching all-in-one storage bag holds the coil, BBQ grille and all small fittings compactly for easy transport to remote outdoor locations.
Singema is a professional dedicated manufacturer and supplier of wood-fired hot tub heating coil systems, specializing in off-grid thermosiphon heating solutions for DIY outdoor soaking setups. Our Model B1 kit uses seamless TIG-welded 304 stainless steel coils engineered for fast, efficient water heating, paired with a custom rotatable stainless BBQ grille and included all-in-one storage bag. We control full production in-house to maintain consistent build quality, delivering longer service life and faster heating performance than generic imported coil heaters from competing brands. Learn more on our about us page.
Applicable Scenarios
- Remote off-grid cabin / rural homesteads: No grid power available; heat a backyard wooden hot tub and cook dinner over the same wood fire
- Beach & lakeside camping trips: Portable coil + storage bag enables temporary inflatable hot tub setups with on-site BBQ grilling
- Backyard DIY stock tank hot tub conversions: Budget-friendly permanent outdoor soaking system for residential garden relaxation
- Wilderness glamping sites: Dual heating/cooking functionality creates luxury unplugged soaking experiences for guest amenities
- Seasonal rural retreats / hunting camps: Reliable wood-fired water heating without propane or electric heater reliance for cold weather soaks. For ways to get the most from every burn, see our tips for maximizing heating efficiency.
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