Neverdark
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Neverdark C2-TSS Thermobox – Single-Sided
Neverdark C2-TSS Thermobox – Single-Sided
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Delivery & Returns
Delivery & Returns
Delivery
- Free UK Mainland delivery on orders over £500
- Large item delivery £29 ( normally £49 pallet delivery )
- In-stock UK items typically dispatch within 1–2 business days
- EU-stock items typically dispatch within 1–3 weeks
- Larger fireplaces and media wall units are delivered on a pallet with curbside delivery
- Tracking details provided once your order has been dispatch
Returns
- 14-day return request window from the date of delivery
- Items must be unused, uninstalled, and returned in original packaging
- Return shipping costs apply unless the item is faulty or incorrect
- Restocking and administration fees may apply
For full details, please refer to our Shipping Policy and Refund & Returns Policy.
The Neverdark C2-TSS is a single-sided Thermobox designed specifically for the Chalet-II — pairing the insulated steel enclosure with the Chalet-II's three-dimensional wood-fire flame, presented on one face. The standard built-in format for a wall, media unit, or architectural recess.
Fully insulated to Neverdark's specification — installs directly into combustible surrounds including timber framing and MDF, and can be positioned directly beneath a television without any heat clearance concerns. Available in standard installation (with a front frame covering the wall finish) and hidden installation (fully flush, no frame).
Available from 800 mm to 1,500 mm. Made to order, 6–8 weeks. Contact us to discuss your project.
The C2-TSS pairs the single-sided Thermobox configuration with the Neverdark Chalet-II volumetric burner — the standard built-in format for a wall, media unit, or architectural recess. The Chalet-II's three-dimensional wood-fire flame is presented on one face, housed in an insulated enclosure engineered specifically for this burner.
The Volumetric Flame in a Single-Sided Opening
The Chalet-II's patented burner produces flames that rise from multiple points through a bed of ceramic logs and lava stones, giving it a depth and movement that a linear burner cannot replicate. In the C2-TSS, that flame is presented through a single front opening — the configuration that suits the greatest range of wall types, media walls, and bespoke architectural features. Long and short glass borders and a reflection screen are available to frame the opening further.
Insulation — Why It Matters
What sets every Neverdark Thermobox apart from standard bioethanol housings is the quality of its insulation. The steel enclosure is insulated to a level that eliminates the heat clearance distances that standard uninsulated boxes require. A Thermobox can be built directly into a timber-framed wall, integrated into MDF cabinetry, or positioned immediately beneath a television — situations where an uninsulated housing simply cannot be used safely. That engineering is reflected in the price, and it is what makes these installations genuinely flexible rather than just architecturally attractive.
Standard and Hidden Installation
Standard installation includes a front frame that sits over the opening and covers the surrounding wall finish — the right choice where the surrounding material needs to be concealed or where a defined border suits the design. The hidden installation has no front frame: the Thermobox sits completely flush inside the opening, with only the flame visible and the wall plane unbroken around it. The control and refuelling panel opens from the top of the unit in both configurations, keeping the front face of the installation completely clean.
Made to Order
All Thermoboxes are made to order. Lead times are typically 6–8 weeks. Contact us before ordering to confirm the correct model, size, and configuration for your burner and installation. Custom widths are available on request.
Available Options
- Sizes (standard): 800, 1,050, 1,300, 1,500 mm (custom on request)
- Compatible burners: Neverdark Chalet-II
- Installation type: Standard (with front frame) or Hidden (flush, no frame)
- Reflection screen: Optional
- Long glass border: Optional
- Short glass border: Optional
- Canopy: Optional
- Flame decorations: Optional
Canopy not available on C2-TSS-800.
Prices for optional extras are listed in the Specification tab or available on request.
Key Specifications
- Product type: Insulated Thermobox for built-in bioethanol fireplace
- Brand: Neverdark
- Compatible burner: Neverdark Chalet-II
- Use: Indoor
- Made to order: Yes
Dimensions — Standard Installation
- 800 mm — D: 500 mm | H: 410 mm | Burner length: 700 mm
- 1,050 mm — D: 500 mm | H: 410 mm | Burner length: 950 mm
- 1,300 mm — D: 500 mm | H: 410 mm | Burner length: 1,200 mm
- 1,500 mm — D: 550 mm | H: 410 mm | Burner length: 1,200 mm
Dimensions — Hidden Installation
- 800 mm — D: 440 mm | H: 420 mm
- 1,050 mm — D: 440 mm | H: 420 mm
- 1,300 mm — D: 440 mm | H: 420 mm
- 1,500 mm — D: 440 mm | H: 420 mm
Materials & Installation
- Material: Steel
- Insulation: Fully insulated — suitable for combustible surrounds
- Colour / Finish: Matte black
- Installation type: Built-in / recessed
- Installation variants: Standard (with front frame) or Hidden (flush)
- Power required: Yes (for burner — see burner product page)
- Chimney required: No
Optional Extras
- Installation type: Standard (with front frame) or Hidden (flush, no frame)
- Reflection screen: Optional
- Long glass border: Optional
- Short glass border: Optional
- Canopy: Optional
- Flame decorations: Optional
Canopy not available on C2-TSS-800.
Specifications vary by size and configuration. Contact us for a full specification sheet for your chosen size.
The C2-TSS pairs the single-sided Thermobox configuration with the Neverdark Chalet-II volumetric burner — the standard built-in format for a wall, media unit, or architectural recess. The Chalet-II's three-dimensional wood-fire flame is presented on one face, housed in an insulated enclosure engineered specifically for this burner.
The Volumetric Flame in a Single-Sided Opening
The Chalet-II's patented burner produces flames that rise from multiple points through a bed of ceramic logs and lava stones, giving it a depth and movement that a linear burner cannot replicate. In the C2-TSS, that flame is presented through a single front opening — the configuration that suits the greatest range of wall types, media walls, and bespoke architectural features. Long and short glass borders and a reflection screen are available to frame the opening further.
Insulation — Why It Matters
What sets every Neverdark Thermobox apart from standard bioethanol housings is the quality of its insulation. The steel enclosure is insulated to a level that eliminates the heat clearance distances that standard uninsulated boxes require. A Thermobox can be built directly into a timber-framed wall, integrated into MDF cabinetry, or positioned immediately beneath a television — situations where an uninsulated housing simply cannot be used safely. That engineering is reflected in the price, and it is what makes these installations genuinely flexible rather than just architecturally attractive.
Standard and Hidden Installation
Standard installation includes a front frame that sits over the opening and covers the surrounding wall finish — the right choice where the surrounding material needs to be concealed or where a defined border suits the design. The hidden installation has no front frame: the Thermobox sits completely flush inside the opening, with only the flame visible and the wall plane unbroken around it. The control and refuelling panel opens from the top of the unit in both configurations, keeping the front face of the installation completely clean.
Made to Order
All Thermoboxes are made to order. Lead times are typically 6–8 weeks. Contact us before ordering to confirm the correct model, size, and configuration for your burner and installation. Custom widths are available on request.
Available Options
- Sizes (standard): 800, 1,050, 1,300, 1,500 mm (custom on request)
- Compatible burners: Neverdark Chalet-II
- Installation type: Standard (with front frame) or Hidden (flush, no frame)
- Reflection screen: Optional
- Long glass border: Optional
- Short glass border: Optional
- Canopy: Optional
- Flame decorations: Optional
Canopy not available on C2-TSS-800.
Prices for optional extras are listed in the Specification tab or available on request.
Key Specifications
- Product type: Insulated Thermobox for built-in bioethanol fireplace
- Brand: Neverdark
- Compatible burner: Neverdark Chalet-II
- Use: Indoor
- Made to order: Yes
Dimensions — Standard Installation
- 800 mm — D: 500 mm | H: 410 mm | Burner length: 700 mm
- 1,050 mm — D: 500 mm | H: 410 mm | Burner length: 950 mm
- 1,300 mm — D: 500 mm | H: 410 mm | Burner length: 1,200 mm
- 1,500 mm — D: 550 mm | H: 410 mm | Burner length: 1,200 mm
Dimensions — Hidden Installation
- 800 mm — D: 440 mm | H: 420 mm
- 1,050 mm — D: 440 mm | H: 420 mm
- 1,300 mm — D: 440 mm | H: 420 mm
- 1,500 mm — D: 440 mm | H: 420 mm
Materials & Installation
- Material: Steel
- Insulation: Fully insulated — suitable for combustible surrounds
- Colour / Finish: Matte black
- Installation type: Built-in / recessed
- Installation variants: Standard (with front frame) or Hidden (flush)
- Power required: Yes (for burner — see burner product page)
- Chimney required: No
Optional Extras
- Installation type: Standard (with front frame) or Hidden (flush, no frame)
- Reflection screen: Optional
- Long glass border: Optional
- Short glass border: Optional
- Canopy: Optional
- Flame decorations: Optional
Canopy not available on C2-TSS-800.
Specifications vary by size and configuration. Contact us for a full specification sheet for your chosen size.