Bioethanol Burner – CB5S

A Refined Flame for Intimate Spaces

The CB5S Bioethanol Burner is a testament to how effortlessly real fire can belong in a modern interior. Compact yet powerful, it brings a genuine, living flame to smaller rooms and intimate settings — no flue, no smoke, no soot. Whether recessed into a wall, set within a piece of furniture, or placed as a standalone installation, the CB5S delivers authentic warmth and the quiet visual drama that only a real flame can provide.

Specifications

Efficient Real Fire Performance in a Compact Form

Designed for smaller interiors and intimate installations, the CB5S combines compact dimensions with genuine real-fire performance. Its efficient fuel consumption, extended burn time, and flexible installation options make it an ideal choice for cozy residential spaces, boutique hospitality settings, and bespoke furniture integrations where warmth and atmosphere matter equally.

Weight: 7.6 kg

Fuel Capacity: 5 L

Fuel Consumption: 0.64 L/h

Approx. Burn Time: 7–11 hours

Thermal Output (Max): 3.5 kW

Heats on Average (Indoors): Over 35 m² (376.7 ft²)

Minimum Room Size: 70 m³ (3,178 ft³)

Colour: Stainless Steel & Black

Customization: Available

Warranty: Lifetime guarantee against manufacturing defects

FAQs

Common Questions About the CB5S Bioethanol Burner

What makes the CB5S well-suited to smaller spaces?

Its compact proportions and 3.5 kW output are calibrated precisely for rooms up to 35 m², making it ideal for cozy living areas, bedroom installations, and intimate lounge corners where a full-scale burner would be excessive. The flame remains vivid and generous without overwhelming the space.

How long does a single fill last?

The CB5S holds 5 litres of bioethanol fuel and burns at approximately 0.64 litres per hour, giving you between 7 and 11 hours of continuous flame per fill — enough for several evenings of ambiance without the need to refuel.

Can it be used indoors safely?

Yes, with appropriate ventilation. Bioethanol burns cleanly, producing no smoke, soot, or odour. As with all real-fire installations, a well-ventilated room is recommended to ensure optimal air quality during use.

Can the CB5S be built into a wall or piece of furniture?

Absolutely. Its modular design is engineered for flexible installation — it can be recessed into walls, integrated into civil work, or fitted within bespoke furniture pieces, making it highly adaptable to different design briefs.

What fuel does the CB5S use?

It runs exclusively on bioethanol fuel. Calm recommends using its own specially formulated bioethanol, designed for the lowest odour, the longest burn time, and the most vibrant orange flame output.

Is maintenance a concern with stainless steel construction?

Not at all. The high-grade SS-304 stainless steel construction keeps maintenance minimal — an occasional wipe with a damp cloth is all that is required to keep the burner in pristine condition.

Why choose Calm for the CB5S?

Calm is India's first truly Made-in-India fireplace brand, and the CB5S reflects that commitment to quality and craftsmanship. Every unit comes with a lifetime guarantee, pan-India installation support, and the assurance that real fire — done right — belongs in every home.