The Kratki Ildnord Alta is part of Kratki’s Ildnord range and offers unbeatable value at this price level. Designed as a modern insert fireplace, the Alta allows for easy installation and reduced building work. This wood-burning fireplace can also be positioned exposed on a ledge as a freestanding option. Designed to endure Poland’s harsh winters, each Alta fireplace is constructed from thick, high-quality steel – evident in the solid weight and robust build of every unit. The closed-combustion fireplace comes standard with convection box and thin finishing frame. Technical specifications Inside the fireplace chamber, Kratki’s signature ceramic lining enhances both combustion efficiency and long-term durability. These heat-intensifying ceramics deliver exceptional thermal performance, supporting primary and secondary combustion for a cleaner burn and maximum heat output. By maintaining consistently high temperatures within the combustion chamber, the ceramics make the fireplace easier to operate, improve heat delivery, and significantly reduce soot buildup in the flue system. Lining the chamber with ceramics provides the highest level of protection to the steel structure, extending the lifespan of the fireplace. The body of the fireplace insert is built from high-quality, thick steel, ensuring exceptional resistance to high temperatures. Each unit is precision-welded in a shielded noble gas environment for superior structural integrity and airtight performance. Using advanced laser-cutting and CNC bending technology, every steel component is crafted with accuracy and consistency to guarantee a perfect fit and long-lasting durability. A large, black-edged glass door frames the flames beautifully, while Kratki’s superior heat-resistant glass and air-wash system help keep the viewing window clear. For improved safety and performance, as well as to increase their lifespan, the heat-resistant glass that Kratki uses is of the highest quality. Kratki’s signature fireplace grate design is engineered using thick cast iron, featuring re-enforced ribbing and multiple bends to maximise strength, durability, and long-term performance. A robust steel slide-out ash box ensures easy cleaning and everyday convenience. The ALTA comes with a 20mm edging frame which is ideal for heat resistant dry wall finished surfaces. For brick and plaster walls, Kratki SA stocks frame solutions – 4-sided frame or 3-sided frame (frames sold separately). The comfortable handle features a solid, ergonomic design with a modern aesthetic. Its perforated construction not only enhances the contemporary look but also helps to dissipate heat. Dual air controls allow precise regulation of both primary and secondary airflow. The secondary air control draws pre-heated air from the fireplace’s convection chamber and directs it into the combustion chamber, further increasing internal temperatures for improved efficiency and a cleaner burn. Built to deliver lasting warmth and reliability, all Kratki wood-burning fireplaces are backed by a 10-year warranty, reflecting Kratki’s commitment to quality, performance, and longevity. Additional information Weight 110 kg Dimensions 72 × 47.4 × 52 cm CO emissions 0.09% Colour Black Country of manufacture Poland Efficiency 84% Flue pipe diameter 150mm Fuel Wood Heat output 8 – 12 kW Heating capacity 170 – 290m3 Material Steel Warranty 10-year warranty Ash pan Yes Combustion technology Primary and secondary combustion Door Standard door Fan system No Flue exit Top Technical Drawing To download the Kratki Ilnord Alta Built In Fireplace Technical Drawing click here.