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EcoSmart Fire Flex 158SS.BX2 Single Sided Fireplace Insert with 3 Burners and 2 Storage Boxes

Sold out
Original price $19,795.00 - Original price $21,295.00
Original price
$19,795.00 - $21,295.00
Current price $19,795.00
Out of stock
Out of stock

The EcoSmart Fire Flex 158SS.BX2 Single-Sided Fireplace Insert is an oversized statement piece that brings sustainable heat to any large space. Featuring three XL900 burners, the Flex 158SS.BX2 heats over 1,935 square feet for up to 13 hours. Use the two storage boxes to hold non-combustible decor or equipment. Crafted with premium quality stainless steel, the Flex 158SS.BX2 features a single-sided design that seamlessly integrates into your space.

Powered by clean-burning bioethanol fuel, this fireplace insert offers a sustainable heating solution without the hassle of a chimney or gas line. The Flex 158SS.BX2 is equipped with an advanced burner system that produces a vibrant and mesmerizing flame, illuminating any room with its radiant glow. 

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Product Details and Specifications

ApplicationIndoor & Outdoor
Weight483lb [219kg]
Model Dimensions

W 166.6in [4231mm]

D 14.4in [365mm]

H 31.8in [807mm]

Viewing Area

W 158.7in [4031mm]

D 13.4in [340mm]

H 19.8in [502mm]


Mild Steel (Zinc Sealed) Hi-temp Powder-coat,

Toughened Glass, Grade 304 Stainless Steel

Burner, with optional Black Ceramic Coating

Model ColorBlack
INcluded BurnerXL900 (x3)
Burner Color OptionsStainless Steel
Fuel Typee-NRG Bioethanol /
Burner Capacity7.1 Gal [27 L]
Heats on Average1938ft2 [180m2]
Minimum Room 11654ft3 [330m3]
Burn Time8-13 h
Thermal Output 48 MJ/h - 45000 BTU/h - 13.20 kW
Operating Costs $1.50 - $3.50 / Hour
Shipping Weight 652lb [296kg]
Packaging Dimensions

L 170in [4317mm]

W 21.1in [536mm]

H 42in [1068mm]

CBF 87.27ft3
TypeCrate (Inc Skid)

2020 BIMsmith Best Award (USA)

2018 Attendees Choice Award (USA)


Fire lighter

Lighting rod

Jerry can 1.25 gal

Bottle adaptor

XL Baffles

Black Glass Charcoal

O-TL Listed in accordance with UL 1370.

Our fireboxes are manufactured to the highest standards and in accordance with ISO 9001:2008.

* 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.


Carbon-neutral shipping with Shopify Planet
Carbon-neutral shipping on all orders
shipping emissions removed
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Direct Air Capture
Bio Oil

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