EcoSmart Fire
EcoSmart Fire Flex 122SS Fireplace Insert
EcoSmart Fire Flex 122SS Fireplace Insert
In stock
First Flex size to run three burners in All Flame
Free UK Delivery
- Up to 45,000 BTU/h (triple XL900) Ethanol Burners
🚚 Estimated Delivery Date:
Delivery date to be confirmed via email once order is placed
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Buying with confidence
- Manufacturer warranty: 2 years on the bioethanol burner and stainless steel parts, 1 year on everything else.
- 45 day returns. Unused and in its original packaging.
- Damaged on arrival? Check it before you sign, and tell us as soon as you can, ideally within 48 hours, so we can sort a replacement quickly. This does not affect your statutory rights.
- Free UK mainland delivery.
- Not sure it is the right one? Call, email or chat with us before you order.
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Overview:
- The Flex 122SS is the first size in the Flex range to run three burners across its All Flame configuration, a 3310mm opening for a wall that needs to be the defining feature of the room.
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Design & Build:
- Zinc-sealed mild steel surround and toughened glass, built around triple Grade 304 stainless XL900 burners in All Flame form (45,000 BTU/h combined from a 27-litre tank); every log-box configuration still runs twin burners rather than stepping down to one. The burner is available in Stainless Steel as standard, or a Black ceramic-coated finish for a flat, monochrome look, at a fixed premium.
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What it does well:
- All Flame runs 8 to 13 hours per fill and is rated for a 330m³ room. Even its most reduced configuration, log boxes on both sides, still runs twin XL900 burners at 30,000 BTU/h, matching the 86SS's own full-width All Flame output at a fraction of the wall space.
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Trade-off worth knowing:
- At 3310mm and up to 172kg, this is a genuinely large-scale installation requiring a properly engineered wall. If 122SS is more than the space calls for, the 104SS gives most of the same architectural statement at a narrower width and lower price.
Flex 122SS questions, answered
Does the Flex 122SS need a chimney or flue?
No. It runs on bioethanol, which burns clean with no smoke, embers or soot, so there is nothing to vent. It frames into a wall or opening with zero clearance to combustibles - no masonry chimney, gas line or flue required.
Can the Flex 122SS be used both indoors and outdoors?
Yes, it is rated for both. Indoors it needs a room of at least 330m³.
How is the Flex 122SS installed?
It frames directly into a stud wall (wood or metal) or an existing hearth opening, with zero clearance to combustibles required around the frame. There is no gas line, flue or masonry work: once the opening is framed to size, the unit drops in and connects to nothing else. At 172kg (All Flame) it is a two to four-person lift into place depending on the model; check the exact figure on this page before planning your install.
What does the Flex 122SS actually cost to run for an evening?
A full 27 litre fill burns for 8-13 hours. We sell e-NRG bioethanol at £65 for a 20 litre carton, so a full fill is about £88 and a three-hour evening works out at roughly £20 to £33. There is no standing cost, since it only uses fuel while it is alight.
Which Flex size should I choose?
The 122SS is the first size to run three burners across its All Flame configuration, rated for the largest room coverage of any size in the launch at 330m³. If 122SS is more than the space calls for, the 104SS gives most of the same architectural statement at a narrower width and lower price.
Which fuel does the Flex 122SS burn, and do you sell it?
It runs on e-NRG bioethanol, which we stock in 20 litre cartons. Bioethanol produces no smoke, embers or ash, so there is nothing to clean out after use.
Are there any accessories that fit the Flex 122SS?
Yes. Its triple XL900 burner takes the XL Baffles and Black Glass Charcoal, sold separately.
Is the Flex 122SS certified for indoor use?
Yes. This model is certified to EN 16647, the UK and EU safety standard for indoor bioethanol fireplaces.
Who the Flex 122SS is for
It is a good fit if:
- You need a wall that is the defining feature of the room: the largest room coverage of any size in this launch.
- Even its most reduced configuration still runs more output than the smaller 86SS manages at full width.
Consider something else if:
- This is more than the space calls for: the Flex 104SS gives most of the same architectural statement at a narrower width and lower price.
- A properly engineered wall is not available: at up to 172kg this requires genuinely large-scale installation.
| Model | Burner | Pick it for | Opening width | Price | Weight |
|---|---|---|---|---|---|
| Flex 18SS | AB3 | Narrowest, fits a tight wall recess or stairwell | 578mm | £1,495 to £1,795 | 25.7kg |
| Flex 32SS | XL500 | First step up to the XL burner family, nearly double the heat | 1010mm | £2,995 to £3,445 | 45.7kg |
| Flex 42SS | XL700 | Shares its burner with the wider 60SS, no log box required | 1265mm | £3,695 to £4,145 | 60kg |
| Flex 50SS | XL900 | First size offering an integrated log-storage configuration | 1470mm | £4,095 to £4,595 | 71.4kg (All Flame) |
| Flex 60SS | XL700 | Log box standard, no All Flame option at this size | 1725mm | £4,545 to £5,095 | 83.9kg |
| Flex 68SS | XL1200 | Largest single-burner size, four configurations at one price | 1930mm | £4,795 to £5,295 | 97.1kg (All Flame) |
| Flex 78SS | XL700 | Log boxes on both sides as standard, no All Flame at this size | 2186mm | £4,795 to £5,245 | 108kg |
| Flex 86SS | twin XL900 | First size to need twin burners for full-width All Flame | 2390mm | £6,995 to £7,995 | 122kg (All Flame) |
| Flex 104SS | twin XL1200 | Even a single log box still runs twin burners | 2850mm | £7,995 to £8,995 | 146kg (All Flame) |
| Flex 122SS (this one) | triple XL900 | First size to run three burners across All Flame | 3310mm | £9,995 to £11,495 | 172kg (All Flame) |
| Flex 140SS | triple XL900 | Every configuration carries at least one log box | 3770mm | £11,395 to £12,895 | 195kg (single log box) |
| Flex 158SS | triple XL1200 | Largest and widest in the launch, two configurations only | 4230mm | £12,395 to £13,895 | 222kg (All Flame) |
Prices are current at the time of writing; follow any link for that model's live price.
Delivery Information
Delivery Information
Key Points of Interest
Key Points of Interest
Specifications
Specifications
| Category | Details |
|---|---|
| Material | Mild Steel (Zinc Sealed, High-Temp Powder Coat) Surround, Toughened Glass; Grade 304 Stainless Steel Burner |
| Weight | 172kg (All Flame), 169-170kg (log-box configurations) |
| Dimensions (W x D x H) | 3310mm x 365mm x 807mm |
| Surround colour | Black |
| Burner finish | Stainless Steel (standard) or Black ceramic-coated (+£1,500) |
| Fuel | Bioethanol only (Indoor or Outdoor) |
| Thermal output | 45,000 BTU/h (47.48 MJ/h) |
| Burn time | 8-13 hours per fill |
| Fuel capacity | 27 litres |
| Minimum room size (indoor use) | 330m³ |
| Burner compliance | EN 16647 compliant burner (manufacturer-approved) |
| Configuration options | All Flame chains three XL900 burners (45,000 BTU/h, 27L, rated to 330m³). Log Box – Left/Right run twin XL1200 burners (30,580 BTU/h, 20L, 230m³); Log Boxes – Both Sides run twin XL900 (30,000 BTU/h, 18L, 220m³). All four configurations are the same price. |
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