Neverdark
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Neverdark TTS Thermobox – Three-Sided
Neverdark TTS Thermobox – Three-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 TTS is a three-sided Thermobox for the Firetec and Automatic burners. With the front face and both side returns open, the flame is visible from a wider angle — giving the installation a more sculptural, open quality than a single-sided build.
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 2,700 mm. Made to order, 6–8 weeks. Contact us to discuss your project.
The TTS is the three-sided Thermobox for the Firetec and Automatic burners. It opens the installation on the front face and both side returns, so the flame is visible from a wider angle and the enclosure reads as an architectural object in the room rather than a flush wall panel.
The Three-Sided Opening
With the front face and both side returns open, the TTS gives the installation a distinctly different presence from single-sided builds. The flame is visible from an arc that includes the front and both sides — well suited to rooms where the fireplace is a centrepiece rather than a wall feature, and to installations in alcoves or projecting elements where the sides are exposed. Glass borders and a reflection screen are available to shape 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. In both installation configurations, the control and refuelling panel opens from the top of the unit rather than the front face. This keeps the front of the installation clean regardless of which configuration is chosen. On Firetec-based installations, the motion sensor lid lifts at the wave of a hand — no contact required.
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, 900, 1,100, 1,300, 1,600, 1,800, 2,200, 2,700 mm (custom on request)
- Compatible burners: Neverdark Automatic, Neverdark Firetec
- 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
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 Automatic or Firetec
- Use: Indoor
- Made to order: Yes
Dimensions — Standard Installation
- 800 mm — D: 460 mm | H: 340 mm | Burner length: 700 mm
- 900 mm — D: 460 mm | H: 340 mm | Burner length: 800 mm
- 1,100 mm — D: 460 mm | H: 340 mm | Burner length: 1,000 mm
- 1,300 mm — D: 460 mm | H: 340 mm | Burner length: 1,200 mm
- 1,600 mm — D: 460 mm | H: 340 mm | Burner length: 1,500 mm
- 1,800 mm — D: 460 mm | H: 340 mm | Burner length: 1,500 mm
- 2,200 mm — D: 460 mm | H: 340 mm | Burner length: 2,000 mm
- 2,700 mm — D: 460 mm | H: 340 mm | Burner length: 2,500 mm
Dimensions — Hidden Installation
- 800 mm — D: 400 mm | H: 350 mm
- 900 mm — D: 400 mm | H: 350 mm
- 1,100 mm — D: 400 mm | H: 350 mm
- 1,300 mm — D: 400 mm | H: 350 mm
- 1,600 mm — D: 400 mm | H: 350 mm
- 1,800 mm — D: 400 mm | H: 350 mm
- 2,200 mm — D: 400 mm | H: 350 mm
- 2,700 mm — D: 400 mm | H: 350 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
Specifications vary by size and configuration. Contact us for a full specification sheet for your chosen size.
The TTS is the three-sided Thermobox for the Firetec and Automatic burners. It opens the installation on the front face and both side returns, so the flame is visible from a wider angle and the enclosure reads as an architectural object in the room rather than a flush wall panel.
The Three-Sided Opening
With the front face and both side returns open, the TTS gives the installation a distinctly different presence from single-sided builds. The flame is visible from an arc that includes the front and both sides — well suited to rooms where the fireplace is a centrepiece rather than a wall feature, and to installations in alcoves or projecting elements where the sides are exposed. Glass borders and a reflection screen are available to shape 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. In both installation configurations, the control and refuelling panel opens from the top of the unit rather than the front face. This keeps the front of the installation clean regardless of which configuration is chosen. On Firetec-based installations, the motion sensor lid lifts at the wave of a hand — no contact required.
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, 900, 1,100, 1,300, 1,600, 1,800, 2,200, 2,700 mm (custom on request)
- Compatible burners: Neverdark Automatic, Neverdark Firetec
- 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
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 Automatic or Firetec
- Use: Indoor
- Made to order: Yes
Dimensions — Standard Installation
- 800 mm — D: 460 mm | H: 340 mm | Burner length: 700 mm
- 900 mm — D: 460 mm | H: 340 mm | Burner length: 800 mm
- 1,100 mm — D: 460 mm | H: 340 mm | Burner length: 1,000 mm
- 1,300 mm — D: 460 mm | H: 340 mm | Burner length: 1,200 mm
- 1,600 mm — D: 460 mm | H: 340 mm | Burner length: 1,500 mm
- 1,800 mm — D: 460 mm | H: 340 mm | Burner length: 1,500 mm
- 2,200 mm — D: 460 mm | H: 340 mm | Burner length: 2,000 mm
- 2,700 mm — D: 460 mm | H: 340 mm | Burner length: 2,500 mm
Dimensions — Hidden Installation
- 800 mm — D: 400 mm | H: 350 mm
- 900 mm — D: 400 mm | H: 350 mm
- 1,100 mm — D: 400 mm | H: 350 mm
- 1,300 mm — D: 400 mm | H: 350 mm
- 1,600 mm — D: 400 mm | H: 350 mm
- 1,800 mm — D: 400 mm | H: 350 mm
- 2,200 mm — D: 400 mm | H: 350 mm
- 2,700 mm — D: 400 mm | H: 350 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
Specifications vary by size and configuration. Contact us for a full specification sheet for your chosen size.