Off-Grid Hot Tub Wood Heater Coil Model C2 With Legs, Wood Holder, Ash Pan and Hose Kit

Description

The Singema Model C2 Off-Grid Wood Fired Hot Tub Heating Coil Complete Kit is a standalone, non-electric water heating system built to warm outdoor wooden hot tubs without grid power, designed for remote, rural, off-location properties. The unit includes supporting legs, a dedicated wood fuel holder, ash collection pan, full hose connection hardware, and optional all-in-one storage bag variant for portable wood-fired hot tub heating. It operates via heat exchange: burning wood transfers thermal energy through the metal coil to circulate and heat tub water with zero electricity demand, making it an ideal off-grid heating solution.

Product Information

Full Product Name	Off-Grid Hot Tub Wood Heater Coil Model C2 With Legs, Wood Holder, Ash Pan And Hose Kit
Manufacturer	Singema Co.,Ltd.
Brand	Singema
Primary Function	Wood-fired heat exchange coil to heat hot tub water with no electricity
Standard Included Hardware	1x Stainless steel heater coil 1x Wood / Fire holder 1x Hot Ash collector 1 kit (3pcs) Ground supporting system 1 hose kit (assembled) including 2 x hose, 2x tub fittings and 4x stainless steel clamps
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 / fully off-grid operation
Product Type	DIY external hot tub heating coil system
Selling Use Case	Rural cabins, remote land, camping sites, properties without utility power

Product Features

1. Complete bundled assembly: reinforced support legs, dedicated wood holder tray, removable ash pan for easy ash cleanup
2. Standard matched hose kit included out of the box for immediate DIY plumbing connection to hot tubs
3. Robust heat exchange stainless steel coil construction for consistent water temperature rise
4. Detachable ash pan simplifies post-burn maintenance
5. Sturdy vertical wood holder maximizes fuel burn efficiency and extends heating duration
6. Optional all-in-one storage bag for secure, dust-free transport and off-season storage
7. Modular lightweight build for portable use at remote outdoor locations
8. No complex wiring or digital controls – simple passive thermal circulation operation for beginner DIY users

How to assemble Model C2 and how to connect it to your tub?

Assembling Model C2:

Screw hose kit onto the ends of heater coil;

Screw 3x Ground Supporting legs at the bottom of heater coil.

Put the Hot ash collector pan under heater coil. That`s all ,finished.

Then, Connect your tub and the assembled C2 as the following steps:

1. Drill two φ25mm holes on your tub/barrel wall (spacing matches coil connections).
2. Attach tub fittings to the holes .
3. Insert tub fitting to hose and then tighten it with clamps..

Pro Tip: Check for leaks before heating by running water through the system.

Application Scenarios

1. Remote rural cabin properties with no municipal electrical grid access
2. Backcountry camping and permanent wilderness retreat outdoor hot tub setups
3. Off-grid homesteads and self-sufficient rural properties seeking low-cost soaking tub heating
4. Glamping sites and eco-tourism destinations requiring sustainable wood-fired water heating
5. Prepper and survivalist properties prioritizing non-electric, renewable fuel heating systems

FAQ

<!– wp:rank-math/faq-block {"questions":[{"id":"faq-question-1780476875222","title":"Does the Singema Model C2 wood coil heater require any electricity to heat my hot tub water?","content":"No power of any kind is needed for the Model C2 hot tub coil heater. It uses passive thermal siphon circulation driven by wood fire heat exchange, so you can run your hot tub heating entirely off-grid without generators or wall outlets.”,”visible”:true},{“id”:”faq-question-1780476887798″,”title”:”Can I install the Model C2 heating coil myself with no professional plumbing experience?”,”content”:”Yes, the complete standard hose kit ships with all required connection fittings and straightforward DIY setup instructions. No licensed tradesperson is mandatory for basic outdoor hot tub integration.”,”visible”:true},{“id”:”faq-question-1780476888766″,”title”:”How do I clean and maintain the Singema C2 wood heater coil after repeated use?”,”content”:”The unit features a slide-out removable ash pan to clear ash residue after every burn session; the metal coil surface only requires occasional brushing to remove soot buildup for consistent heat transfer efficiency.”,”visible”:true},{“id”:”faq-question-1780476890941″,”title”:”Is a storage bag included with my order of the Model C2 coil heater kit?”,”content”:”The all-in-one protective storage bag is an optional add-on variant. Base Model C2 units ship with legs, wood holder, ash pan and hose set only; you can select the storage bag variant during checkout for transport and off-season protection.”,”visible”:true},{“id”:”faq-question-1780476892102″,”title”:”What type of wood fuel works best with the Singema C2 wood-fired coil system?”,”content”:”Dry hardwood logs (oak, maple, cedar) deliver the most efficient, long-lasting heat output. Softwoods work for quick heating but require more frequent refueling via the built-in wood holder tray.”,”visible”:true},{“id”:”faq-question-1780476893210″,”title”:”Will the Model C2 coil fit standard size outdoor wooden hot tubs?”,”content”:”The Singema C2 coil is engineered as a universal external heating system compatible with most standard above-ground wooden hot tub models; adjustable support legs adapt to uneven outdoor ground surfaces for stable mounting.”,”visible”:true},{“id”:”faq-question-1780476894500″,”title”:”Where can I buy durable, complete off-grid wood hot tub heater coil kits for remote properties?”,”content”:”Singema is a specialized manufacturer and supplier of wood-fired hot tub coil heating systems with years of experience designing off-grid heating hardware for wilderness, rural and glamping hot tub applications. Our Model C2 complete coil kit comes pre-equipped with stabilizing legs, a dedicated wood fuel rack, easy-clean ash pan and full hose connection set, eliminating the need to source separate heating components individually. Every Singema coil unit is built with heat-resistant metal for long-term outdoor exposure, with optional storage bag upgrades to fit every off-grid hot tub setup.”,”visible”:true}]} –>

Application Scenarios

1. Off-grid cabin retreat Heat your outdoor soaking tub with no electricity or gas while staying at a remote woodland cabin.
2. Camping & wilderness trips Set up a portable hot bath beside a campsite after hiking, fishing or outdoor backcountry activities.
3. Backyard DIY spa Build a custom wooden hot tub in your garden and use this coil kit for affordable, wood-fired hot water heating.
4. Rural homestead living Support self-sufficient off-grid homestead life without relying on municipal power or utility heating systems.
5. Beach & coastal leisure Enjoy a warm hot tub experience on beach land where power hookups are unavailable or inconvenient to install.
6. Tiny house outdoor bathing Pair with a small soaking tub next to a tiny home for compact, fuel-efficient wood-powered hot water bathing.