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Customer Favorite Flex 140db.bx1 Double Sided Fireplace Insert Flash Sale: 80% Off [AOIRnkVC]

$125.99 $403.99 -69%

With two open sides, Flex Double Sided fireplace insert creates the perfect room divider. The see-through design provides unobstructed views of the flickering flame from the front and the back, infusing warmth and ambiance into two adjacent rooms.Wit

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Customer Favorite Flex 140db.bx1 Double Sided Fireplace Insert Flash Sale: 80% Off [AOIRnkVC]

With two open sides, Flex Double Sided fireplace insert creates the perfect room divider. The see-through design provides unobstructed views of the flickering flame from the front and the back, infusing warmth and ambiance into two adjacent rooms.

With an EcoSmart Flex 140DB.BX1, you have design freedom with the choice of a Decorative Box on the left or right-hand side. Both designs are fitted with a glass panel that divides the box and the Firebox and creates an attractive streamlined look. Instantly transform any wall into a feature, indoors or out, with a stylish, clean-lined Flex Firebox.

One of the longest flames available in the Flex Series is created by using 3 of our ever-popular XL900 Burners. With an overall heating capacity of 180m2 this appliance is best suited to large open spaces - think hotel lobby, large open plan restaurants.

Each burner holds 9L of fuel, and can deliver a stunning flame for up to 13 hours.

Included Accessories:

  • Jerry Can 5L 
  • XL Baffles 
  • Black Glass Charcoal 
  • Lighting Rod 
  • Fire Lighter

Features

APPLICATION

Indoor or outdoor multi room application. With two open side, view the flame from the front and the back.

COLOURS

Available in black, firebox comes with stainless steel burners and decorative Black Glass Charcoal.

NO GAS OR ELECTRICITY

No gas, no electricity, no chimney, no venting or external vent cap. 4 fewer General Contractors.

CLEAN BURNING

All the fuel is housed within Flex’s self-contained burner so you don’t have to run a gas line or electric wires through your walls. And because e-NRG Bioethanol is clean burning, you don’t need a flue or a chimney

ZERO CLEARANCE

Self-contained, zero clearance construction allows your Flex fireplace to be framed into wood or metal studs, providing installation freedom and flexibility for builders.

QUICK AND EASY ASSEMBLY

Requiring virtually no assembly, Flex Fireboxes are designed to be placed into the desired location, safely secured into position, and operated immediately.

RUST PROOF

Zinc sealed steel construction powder coated with super hi-temp black paint prevents rusting so all fireplaces can be used both indoors or outdoors.

LUXURIOUS FINISH

Available in a timeless black finish, Flex Fireboxes come with stainless steel burners and black glass charcoal.

DECORATIVE SIDE BOX

Includes one decorative side box to fill with your chosen noncombustible accessory.

OPTIONAL LOG SETS

Eye-catching accessory for the decorative side box. Made from stainless steel with a patina finish, they are available in two different finishes: Brass or Copper.

WIND SCREEN

Included integrated windscreen sits flush behind frame.

Specifications

  • WEIGHT: 170kg [376lb]
  • MODEL DIMENSIONS mm [in]: W 3770mm [148in]D 354mm [13.9in]H 807mm [31.8in]
  • VIEWING AREA mm [in]: W 3570mm [141in]D 352mm [13.9in]H 502mm [19.8in]
  • MATERIALS: Mild Steel & Toughened Glass

Fuel Efficiency

VOLUME CAPACITY
9 L
2.4 Gal

HEATS ON AVERAGE
60m2
646ft2

MINIMAL ROOM
110m3
3885ft3

THERMAL OUTPUT
15000 BTU/h
4.4 kW 16 MJ/h

BURN TIME
8-13h
9 Litres
* These values are indicative only and may vary depending on the model purchased, installation environment, and the composition of the e-NRG bioethanol sourced in each country.

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What Our Customers Say

January 20, 2026

Absolutely no complaints!

Very happy with this truly nice item.

- Beverly H..

January 20, 2026

Absolutely no complaints!

This is a very potent and efficient item.

- Nova C..

January 20, 2026

Absolutely no complaints!

I'm happy with the item. It's solid.

- Darla P..

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