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Ecosmart Flex 158SS
Ecosmart Flex 18SS
Ecosmart Flex Island
Ecosmart flex 18PN
Ecosmart Flex 158SS
Ecosmart Flex 32SS
Ecosmart Flex 50SS
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Why Choose a FLEX Bioethanol Fire?

EcoSmart’s FLEX range is engineered to be easily inserted into timber-framed walls with no additional heat insulation required. The zero clearance firebox contains all the thermal protection needed, making it ideal for both new builds and renovations.

With multiple design configurations and sizes, FLEX fireplaces blend effortlessly into residential or commercial interiors, from contemporary open-plan homes to boutique hotels and luxury spas.

EcoSmart Flex 122

NO FLUE. NO GAS. NO COMPRIMISE

– No need for costly flues.
– NO requirement for any ventilation.
– 100% clean burning.
– No soot, smoke or carbon monoxide.

EcoSmart Flex 122

SEAMLESS INTEGRATION

– FLEX models are designed for installation into timber-framed walls.
– Zero Clearance firebox with integrated heat insulation built in.
– Perfect for joiners, builders and architects.
– Only requires a competent person for installation.

EcoSmart Flex 122

EVERY CONFIGURATION

– Available as single-sided, double-sided, triple-sided, bay, peninsula, or even four-sided.
– Extensive range of sizes available (0.4 to 4m+)
– Range of burner sizes to suit residential or commercial settings

Why buy from Bio Fires Online?

    Call us on 0207 788 4777 or email us at sales@BioFiresOnline.com for a quote.

    • Official EcoSmart Fire UK distributor and technical specialist
    • Expert advice, trade pricing, and full support
    • Fast UK-wide delivery and aftercare
    • 5-star rated customer service.

      Call us on 0207 788 4777 or email us at sales@BioFiresOnline.com for a quote.

      The benefits of Choosing Bioethanol

      • Clean-burning and vent-free.
      • Eco-friendly, sustainable and renewable energy.
      • Lower installation costs.
      • Simple operation and control.

      Built for Builders and Designers

      • Zero clearance firebox enables straightforward planning and installation.
      • Can be clad in standard materials: plasterboard, timber, tile or stone.
      • Simple installation by a competent person.

      Eco-Friendly and Efficiency By Design

      • Fueled by renewable bioethanol.
      • e-NRG recommended.
      • Delivers real flames with no fossil fuels.
      • Clean burning with no particulates.

       Why Choose EcoSmart Flex?

      • Modular Flexibility
        Available in single-sided, double-sided, bay, peninsula, or island configurations, the Flex Range accommodates virtually any floorplan or design vision. Each model features a zero-clearance firebox, making installation in timber-framed structures fast and hassle-free.

      • No Flue, No Fuss
        Because the Flex Range is fuelled by clean-burning bioethanol, there’s no need for gas lines, electrical hookups, or chimneys. That means you can incorporate a luxury fireplace in places previously impossible – from penthouses to hotel lobbies, kitchens to bedrooms.

      • ZERO Clearance
        Install direct into a timber frame as the firebox provides all of the thermal protection required. Plasterboard to the bottom and sides, with an A1 board up the breast above, finish off with a metal beed and you are ready to go. Leave a 250mm clearance above and you can have a recessed TV, or use a shelf to deflect the heat.

      • Luxury Meets Safety
        Every EcoSmart Flex firebox includes toughened glass screens and precision-engineered stainless steel construction. The fires are tested to global safety standards and supported by the industry-leading EcoSmart Fire burner technology.

      Clean, Green, and Maintenance-Free

      As with all EcoSmart products, the Flex Range is powered by e-NRG bioethanol fuel, which is plant-based and burns without smoke, soot, or ash. Learn more about why bioethanol is the cleaner, safer fuel of the future on our Bioethanol Explained page.

      And if you’re not sure whether a built-in fire is right for your project, browse our full EcoSmart Fireplace Collection – from freestanding statement pieces to portable designer models.

      Expert Support & Bespoke Guidance

      At Bio Fires Online, we don’t just sell bioethanol fireplaces – we advise, support, and help you bring your design vision to life. For tailored recommendations or to explore how the EcoSmart Flex Range can fit into your renovation, hospitality venue, or commercial project, get in touch with our expert team.

      Discover the Freedom of Flexible Flames

      The EcoSmart Flex Range is where architectural freedom meets sustainable luxury. Ready to design without limits? WIthout the usual restrictions of gas supplies and flue routes, a bioethanol fire can be installed almost anywhere.

      Call us on 0207 788 4777 with amy questions relating to locations.

      Shop the EcoSmart Flex Range now

      FLEX Fire Models at a Glance

      • FLEX 18 | FLEX 32 | FLEX 42 | FLEX 50 | FLEX 60 | FLEX 68 | FLEX 78 | FLEX 86 | FLEX 104 | FLEX 122 | FLEX 140 | FLEX 158
      • Configurations: SS (Single-Sided), LC (Left Corner), RC (Right Corner), BY (Bay), PN (Peninsula), DB (Double-Sided), IL (Island) and BN (Bench)
      • Burn Times (8-14 hours), Heat Output (1.7kW – 13.5kW)
      • Explore the full range here

      With multiple design configurations and sizes, FLEX fireplaces blend effortlessly into residential or commercial interiors – from contemporary open-plan homes to boutique hotels and luxury spas.

      the pinnacle of built-in bioethanol fireplace design. Engineered for seamless integration and uncompromising performance, the Flex Series allows architects, interior designers, and homeowners to create striking, clean-lined fireplace features without flues, chimneys, or gas connections.

      At Bio Fires Online, we’re proud to specialise in the EcoSmart Flex Range, the most versatile and design-forward built-in bioethanol fireplace collection available in the UK. Whether you’re planning a single-room statement piece or a dramatic double-sided divider, the Flex Series offers an ideal solution.

      Popular Flex Models

      Looking for design inspiration? Here are some of our most sought-after Flex Series models:

      EcoSmart Flex 122

      Flex 42LC – Single-Sided Built-In Fireplace

      A compact linear firebox perfect for media walls or bedroom installations.

      EcoSmart Flex 122

      Flex 50BY – Bay 3-Sided Configuration

      Ideal for design statements in open-plan living spaces.

      EcoSmart Flex 122

      Flex 68DB – Double-Sided Room Divider

      Create visual impact and warmth from two sides – a stunning architectural centrepiece.

      Forthcoming Trade Shows

      HBRS

      28-29th June, 2025
      Sandown Park, Surrey

       

       

      GRAND DESIGNS

      Grand Designs Birmingham

      3-5th October 2025
      NEC, West Midlands

      HBRS

      31 Oct – 2nd Nov, 2025
      Harrogate Convention Ctr

      HBRS

      17-18th January, 2026
      Fanrborough, Hampshire

      Manual Bioethanol Fires

      BURNERS ONLY

      EcoSmart AB3 Bioethanol Burner Black

      PORTABLE FIRES

      EcoSmart AB3 bioethanol burner in a wooden coffee table

      FIRE PIT BOWLS

      EcoSmart AB3 bioethanol burner in a wooden coffee table

      FIRE TABLES

      EcoSmart AB3 bioethanol burner in a wooden coffee table

      ‘GIN’ FIRE TABLES

      EcoSmart AB3 bioethanol burner in a wooden coffee table

      DESIGNER FIRES

      Designer Fires

      PREMIUM INSERTS

      EcoSmart 800SS

      CURVED FIREPLACES

      EcoSmart 800SS

      FLEX INSERTS

      EcoSmart 800SS

      FIRE PIT KITS

      EcoSmart 800SS

      FIREPLACE GRATES

      EcoSmart 800SS

      ACCESSORIES

      EcoSmart R530 Fire Screen
      Other Fire Types & Heaters

      ELECTRIC FIRES

      EcoSmart EL40

      ELECTRIC HEATERS

      Heatscope Vision 3200W

      How it works

      EcoSmart 800SS

      Bioethanol Safety

      EcoSmart 800SS

      Order Fuel

      e-NRG Bioethanol Fuel
      Shop Categories

      BIOETHANOL BURNERS

      EcoSmart AB8 Bioethanol Burner

      PORTABLE FIRES

      EcoSmart STIX Portable Bioethanol Fire Pit

      BIOETHANOL FIRE PITS

      EcoSmart Pod 40 Bioethanol Fire Pit

      BIOETHANOL FIRE TABLES

      EcoSmart Wharf 65 Teak

      FIRE GRATE INSERTS

      EcoSmart Grate 30 Bioethanol Fire

      DESIGNER FIRES

      EcoSmart Igloo Bioethanol Fireplace

      Hole In the Wall

      EcoSmart Flex 50 Bioethanol Insert Fireplace

      CURVED FIRES

      EcoSmart 1100CV Curved Bioethanol Fireplace
      Indoor Fires
      EcoSmart VB2
      Flex Fireplaces
      EcoSmart Flex 18 Bay Bioethanol Fireplace Insert
      Outdoor Fires
      EcoSmart Nova 850 Natural

      FIRE PIT KITS

      EcoSmart Linear 50 Bioethanol Fire Pit Kit

      Premium Inserts

      EcoSmart Firebox 800 Premium Bioethanol Fireplace

      Electric Fireplaces

      EcoSmart EL40 Electric Fireplace

      OUTDOOR HEATERS

      Heatscope Pure Outdoor Heater

      GRATE INSERTS

      EcoSmart Grate 30 Bioethanol Fire

      ACCESSORIES

      e-NRG bottle adaptor and nozzle

      BIOETHANOL FUEL

      e-NRG Bioethanol Fuel

      NEW Complimentary Products

      MODULAR SOFAS

      blinde design connect modular 7 u chaise sectional modular sofa in flanelle front view

      CHAIRS & STOOLS

      EcoSmart EL40 Electric Fireplace

      CUSHIONS

      Blinde Design Cushion C20 in flanelle

      PLANTERS

      Blinde Design Stitch 100 Planter in Natural with Orange Rope

      COFFEE TABLES

      blinde design solo r1 coffee table bone 45 angle view

      BAR CARTS

      Blinde Design Serve T30