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  • New
  • PRO

Wood burning steel stove REN/L left Ø 150 7 kW black thermotec

Rated output (kW) 7.3
Heating efficiency (%) 80.2
Meets requirements
  • Ecodesign
  • Designed for recuperation
  • BImSchV 2
  • 7* Flamme Verte
Weight (kg) 170
Availability 1 day of implementation Low stock
Expected delivery date 05.08 - 09.08
Shipping from £360.29
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Price includes VAT


The REN freestanding stove has been created with the most demanding customers in mind. Its attractive design and beautiful vision of the fire attract attention, giving the room a unique character. REN is ideal for use in open and semi-open spaces, attractively combining, for example, a kitchen with a dining area or a living room with a kitchenette. It is a stove that not only offers comfort and safety but is also characterised by a modern design, perfectly fitting into various interior arrangements.

Several innovative solutions applied in the REN stove make sure that by heating the interior with our device you are assured of maximum energy utilisation. This means that the stove has been designed to convert the supplied energy into heat as efficiently as possible.

The stove meets the ECODESIGN requirements and the strict German BlmschV II standard. In addition, it has been designed to meet the strict Flamme Verte environmental standards, which guarantee high efficiency, clean combustion, and reduced emissions. So you can enjoy a cosy atmosphere in your home while minimising your impact on the environment.

We are confident in the quality of our appliances. By betting on our product, you ensure peace of mind, trouble-free use and satisfaction with your purchase.



- two-sided vision of fire perfectly fits into the climate of modern interiors,

- decorative GLASS type glass with an aesthetic black décor gives the stove an elegant appearance,

- longer temperature maintenance thanks to the lining of the combustion chamber with TERMOTEC accumulation material,

- intuitive regulation of the air supply,

- handle in the form of a railing provides a comfortable grip along its entire length,

- comfortable door opening thanks to the use of a modern and durable mechanism,

- cast iron grate and steel ash pan,

- clean glass system allows the glass to be kept clean,

- heat resistant glass with temperature resistance up to 600°C,

- deepened combustion chamber holds more wood,

- adjustable feet allow the stove to compensate for unevenness in the ground and level the stove,

- triple aeration system of the combustion chamber contributes to the high efficiency of the combustion process,

- extension of the flue gas flow by a system of two deflectors and a flue outlet screen contributes to a reduction in the temperature of flue gases which translates into greater efficiency of the combustion process and lower chimney losses,

- inspection door open on the push-to-open principle,

- air intake via an external spigot (can be connected from behind or underneath) with a diameter of fi 100,

- stove covered with a specially designed paint mixture, with increased resistance to scratches and characterised by a uniform and smooth structure,

- possibilitý of connecting the flue outlet from both the top and the back of the appliance,

- Easy installation of the stove thanks to a hole in the base - Ø200mm,

- Meets the criteria of the ECODESIGN, the restrictive German standard BlmschV II and Flamme Verte,

- Designed for houses with recuperation.

Technical data

General data
Rated output (kW)7.3
Heating power range (kW)4,3-10,3
Heating efficiency (%)80.2
Exhaust gas temperature (℃)250
Max length of logs (cm)25
Self ClosureNo
VersionCorner left
Door opening directionLeft
Flue outlet diameter (mm)150
Air intake diameter (mm)100
Energetic efficiency
Energy classA
Energy efficiency index (EEI)106.3
Seasonal Heating efficiency (%)70.2
Moc cieplna do ogrzewania pomieszczeń (kW)7.3
CO emissions (at 13% O 2 ) ≤ given in %0.042
Emisja CO (mg/m3)523
Dust emission (mg/Nm3)33
Emisja NOx (mg/Nm3)166
Emisja OGC (mg/Nm3)30
Certifications / Compliance
Meets requirementsKRATKI PRO, Ecodesign, Designed for recuperation, BImSchV 2, 7* Flamme Verte
Additional information
Design featuresAir intake - built in , Ashpan, Combustion chamber lining, Decorative glass
Front typeSteel front with painted glass
Type of fuelSeasoned deciduous wood (humidity ≤20%)
Physical parameters
Width (cm)45.2
Height (cm)175.7
Depth (cm)45.2
Weight (kg)170

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    Warranty and returns


    All the products available at www.kratki.com are brand new, free from any physical or legal defects. The Producer grants a 5-year warranty from the moment of purchase of a stove for its reliable operation. The ceramic liner is covered with a 2-year warranty from the moment of the purchase of the stove. Grate and sealing for the stove are covered with a 1-year warranty from the moment of the purchase of the stove. The warranty shall not cover heat-resistant ceramics. The application of the stove, the method of joining with the chimney as well as the terms and conditions of use must correspond with the manual.


    A Customer being a Consumer, who has concluded the Sales Contract may rescind thereof within a period of 14 days without giving any reasons. The time limits run for the rescission of the Sales Contract shall commence at the time of acquiring the Goods by the Customer or a third party of their choice, other, however, than a carrier. The representations may be submitted in a form whose template has been published by the Seller at the Online Shop Website.

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