iStove Nero Lux 15kw Contemporary Stove with Back Boiler for Un-Vented – Closed, or Vented – Hot Water and Central Heating. 

Eco Design 2022 Compliant –  80% efficiency SUITABLE FOR VENTED OR UN-VENTED HOT WATER

A stylish – neat wood burning and multi-fuel stove, that incorporates a large ceramic glass window, silver door handles / controls and an integrated back boiler for hot water and central heating. Hand built in Europe to a high standard and finished in charcoal dark grey, the iStove Nero Lux is a substantially constructed stove, and is finished to the very highest of standards.. guaranteed.

The iStove Nero Lux is Eco Design 2022 Compliant, in recent testing, stoves that are Eco Design 2022 Compliant consumed 6 times less fuel than non compliant stoves… the result is that the savings on fuel consumption are significant.

The integrated back boiler offers a nominal heating output of 5kw to water heating, and a nominal heating output of 6kw to room heating There are 4 primary water connections on the rear of the stove, 2 x flow and 2 x return – size = male 1″ BSP. The back boiler on this stove is extremely efficient and will heat approximately 10 average sized radiators plus the domestic hot water.

In addition the back boiler incorporates an internal cooling coil, which runs through the main back boiler. The purpose of the coil is to cool the water within the back boiler. This is achieved with an additional control valve called a TAS valve. The cooling coil is designed to be fed by a mains cold water feed, and the cooling water is then discharged to waste water drain. The main cold water feed is controlled by a mechanical TAS valve which monitors the temperature of the water within the back boiler and opens when the water reaches 96 degrees. This releases a burst of mains cold water which released through the cooling coil, thus reducing the temperature of the water within the back boiler. The cooling water is kept separate from the water within the back boiler and therefore no contamination can take place. The mains cold water is then discharged to an outside drain.

In addition, when using the iStove Nero Lux 4 port on an un-vented hot water system,  we recommend that you install a 25 litre expansion vessel and at least two 3 bar pressure release valves. We also recommend that you use our approved “thermostatic pump station” in order to increase the efficiency of the stove. Please note that the TAS valve is not included with the stove. Click Here to see TAS valve

Primary and secondary air controls allow complete and effective control over both the burn rate and temperature output, in order to maximize the efficiency of the stove. The iStove Lux also has an advanced pre-heat air wash system that ensures the large glass window stays clean to give a clear view of the flames. Further features include a large removable ash pan for easy cleaning and maintenance and a multi fuel fire grate.

The stylish design and clean lines compliment the contemporary look of this compact, yet high output stove.

The iStove nero  Lux is also available without a back boiler, please click here to see the iStove Lux. 

We also have a smaller version of the iStove Nero Lux without a back boiler, to view this stove please click here.

The iStove Nero Lux with back boiler carries a 2 year warranty and the following quality standards: CE Marked to EN13240 and manufactured in accordance with  ISO 9001 Quality Standard

In accordance with all the stoves that we offer, the iStove Nero Lux carries a 2 year warranty and is CE Marked to EN13240 (latest standard) and manufactured to ISO 9001 Quality Standard… please do not confuse this stove with other cheaper alternatives, it’s build quality and finish compares to other stoves that are in excess of £1800. We are often asked how we can offer our stoves at such competitive prices?.. We buy direct from the manufacturers, so there is no distributor middle man, we buy in bulk, which reduces the cost price, we handle our logistics to further reduce the “landed” cost of each stove, and we are an e-commerce company with low overheads..the result..You save money on your stove. Our low prices do not reflect low quality.. Guaranteed.. or your money back!

Price Includes FREE delivery to most UK postcodes (Next Day delivery service from date of dispatch)


  • Nominal Space Heat Output: 6kw – Maximum Heating Output Approx 30-40% Greater
  • Nominal Water Heating Output 5kw – Maximum Heating Output Approx 30-40% Greater 
  • The Nominal output is a record of the stove heat output at its peak efficiency and not the peak heating output.
  • Back boiler rated to a working pressure of 2 bar
  • Back Boiler incorporates 2 x flow and 2 x return connections, + 1 x flow and 1 x return for in internal cooling coil
  • Water connections are 1″ BSP for the flow and return, and half inch BSP for the cooling coil. NB a TAS valve is required for the cooling coil – NOT INCLUDED (we sell for £79.00 – click here for further details)
  • Dimensions: Width 615mm / Depth 424 / Height 762mm
  • Firebox: Depth 300mm, width 530mm, height 400mm
  • Weight: 130kg
  • Colour: Contemporary Dark Grey with Polished Silver Door Handle and Controls
  • Flue Diameter: 6 inches (150mm)
  • Features: Eco Design 2022 Compliant, Ceramic Glass Window. Advanced Air-wash, Primary and Secondary Air Control, Large Removable Ash Pan
  • 1 x Flow and 1 x Return Water Connections, Hi Efficiency Back Boiler
  • Flue Outlet: Top Only
  • Efficiency: 79.53% – A+
  • Fuel: Wood Burning & Multi Fuel – Coal, Peat, Smokeless Fuel.. etc
  • Warranty: 2 years