Used Ilvet Continious Annealing Furnace for sale (815)

Condition: used, Year of construction: 2011, Technical details: temperature min.: 1 ° temperature max.: 199 ° electrics - voltage/frequency: 380 / 50 V/Hz heating capacity: 1,8 (1800 Watt) kW protection class: IP 54 total power requirement: 16,2 kW weight of the machine ca.: 0,93 t dimensions L x W x H: 2,85 x 2,0 x 1,4 m Pre-polymerization tunnel - Heat treatment tunnel Application: drying for washing and painting lines - pass through Sold as is and described! other features: -recommended temperature according to manufacturer max. 80°C; safety setting 90°C; heating 230V Fpodpfxju Nw E Ue Ak Uel -with chain conveyor/feed line made of Teflon -chain width 200mm -max. workpiece width 150mm passage W: 150 x H: 110mm, running height 600mm; operation motor SEW Eurodrive (gear motor) power 0,18kW loading W x H: 500 x 800mm unloading door W x H: 600 x 1200mm access door W x H: 800 x 980mm with safety locking system room height 1400mm *

Condition: ready for operation (used), Max. Working temperature: 1120°, heated length: 1000mm, cooling length: 1850mm, channel height: 40mm, conveyor belt width: 110mm, throughput speed: 100-1000mm/min, splitting gas consumption: 1.5-2.5Nm³/h, touch panel: Siemens SIMATIC HMI, length: 5000mm, width: 650mm, height: 1350mm, with integrated ammonia splitter GSP 25 FA, integrated gassing panel, protective gas from ammonia splitter (on-site ammonia supply) + N2 purge gas as required, MSR system with Siemens PLC and touch HMI, atmosphere monitoring, process documentation, on-site inspection is possible. Fpodpfjq Ttz Ejx Ak Ujl

Year of construction: 1986, condition: ready for operation (used), A Herdieckerhoff pot annealing furnace for the heat treatment of ring tubes is available. Maximum temperature: 1000°C, operating medium: inert gas, max. net charge weight: 1200kg, support height: 3850mm, furnace diameter: 2200mm, furnace height: 4650mm. Including 3x vacuum-tight and water-cooled circulators and 3x circulation impellers. Documentation available. On-site inspection is possible. Fsdpfx Akovxvgrj Uspl

Condition: ready for operation (used), Heraeus MR 170 E Muffle Furnace, Annealing Furnace, Oven 1000°C Fpjdpeynhm Hsfx Ak Uol Internal dimensions: 295mm x 175mm x 95mm (D x W x H) You are welcome to arrange a viewing. We can organize affordable shipping for you upon request! You will receive a proper invoice. For foreign customers, a net invoice can also be issued provided a valid VAT ID is supplied. Sale subject to prior sale. Visit our shop to see more of our offers. The listed company names and trademarks are property of their respective owners and are used solely for identification and description of the products. Deviations from the technical data and errors in the article description may occur and are subject to change.

Condition: good (used), Make: ELIOG Year of manufacture: 1992 Opening (W x H x D): 150 x 110 x 350 mm Temperature: up to 1,350 °C Nominal power: 4 kW Connection load: 5 kW Accessories/Equipment: separate control cabinet Condition: good Total weight: 170 kg Furnace dimensions: 500 x 600 x 430 mm Control cabinet dimensions: 450 x 550 x 700 mm Fpedpfeym U Sgex Ak Uel

Condition: used, Manufacturer: David + Baader, Kandel Type: 10880.3 Machine type: Industrial oven / Chamber oven / Heat treatment oven For sale is a used industrial oven from the manufacturer David + Baader Kandel, type 10880.3. This oven is suitable for a wide range of applications in industry, crafts, laboratories, and workshops and is ideal for heat treatment, drying, or annealing processes. Technical data Manufacturer: David + Baader Kandel Type: 10880.3 Design: Electric chamber oven Condition: Used Further technical data available upon request or according to the nameplate Fsdpfjznv Dfex Ak Ujpl Features and advantages Robust industrial design Uniform heat distribution Reliable temperature control Stable oven chamber Suitable for continuous operation Proven German quality Possible applications Heat treatment of metal parts Annealing and tempering processes Drying processes Laboratory and testing applications Research and development Workshop and production operations Chamber dimensions (internal): W700 H700 D700

Year of construction: 2017, condition: good (used), functionality: fully functional, Furnace Housing Dimensions External dimensions: - approx. 3,800 x 4,300 x 2,200 mm Internal (usable) furnace dimensions: - approx. 2,440 x 1,400 x 1,200 mm Batch Load weight: - 9 boxes (net weight 50 kg/each) Fpjdpfx Akexcybke Uel - approx. 250 kg material per box - stack arrangement 3x3 Performance Data - 1 gas recuperator burner - 160 kW rated heating capacity - Max. allowable chamber furnace temperature 720°C - Max. allowable post-combustion temperature 1,020°C - 1 temperature control zone Temperature Control Range - Chamber furnace 480°C – 700°C - Post-combustion 850°C – 1,000°C Supply Media - Natural gas L or H - Gas inlet pressure 80 mbar - Voltage 400 V - Frequency 50 Hz - Connected load 8 kVA - Compressed air 6 bar, dry, oil-free Material: e.g. brass or bronze

Condition: excellent (used), Year of construction: 2012, machine/vehicle number: 221005, functionality: fully functional, Technical Data – AICHELIN Pusher Furnace System Manufacturer: AICHELIN Type: DHLG-50/50/50 System Type: Gas-heated Pusher Furnace Year of Construction: 2012 (system) Control System: Siemens S7-400 Machine No.: 221005 Electrical Data Connected Power: 261 kW Rated Current: 383 A Supply Voltage: 400 V / 50 Hz Furnace Data Heating: Natural Gas Max. Furnace Temperature: 500 °C Protective gas operation possible Fpjdpfezf Upnox Ak Uol Continuous pusher operation Batch Data Max. Batch Weight: 10,000 kg Continuous heat treatment of large series components Application Area Hardening Tempering Stress-relieving annealing Preheating Heat treatment of forged and cast parts Gearbox and drive components Equipment Siemens S7-400 control system Automatic loading and pusher system Gas-heated industrial furnace Protective gas atmosphere possible Fully automatic series operation Typical Applications Automotive industry Forging operations Gearbox manufacturers Heat treatment companies Supplier industry Special Features Very high batch capacity of up to 10 tons Modern Siemens PLC control system Energy-efficient gas heating Suitable for high production volumes in 3-shift operation Ideal for the heat treatment of gearbox parts, shafts, gears, and forged parts This AICHELIN DHLG-50/50/50 is a modern industrial heat treatment system and is significantly more valuable than a comparable standard tempering or chamber furnace. The system is particularly interesting for forging companies, gearbox manufacturers, foundries, and contract heat treatment companies.

Condition: like new (used), Year of construction: 2023, machine/vehicle number: SN432511, functionality: fully functional, power: 75 kW (101.97 HP), input voltage: 400 V, input current: 108 A, input frequency: 50 Hz, type of input current: three-phase, temperature: 1,340 °C, inner dimension length: 1,000 mm, inner dimension width: 800 mm, inner dimension height: 1,250 mm, total length: 1,800 mm, total width: 1,900 mm, total height: 2,500 mm, overall weight: 2,800 kg, number of chambers: 1, control type: PLC-controlled, actuation type: electric, Equipment: CE marking, documentation/manual, with 12 months warranty -Internal dimensions (w x d x h): 800 x 1000 x 1250 mm -External dimensions (w x d x h): 1790 x 1900 x 2500 mm -Control cabinet (w x d x h): 1200 x 500 x 2350 mm -Controller cabinet (w x d x h): 600 x 900 x 1850 mm -Capacity: 1000 liters -Maximum temperature: 1340 °C -Siemens PLC control system H1700 (100 programs, each with 20 segments) -Nabertherm NCC, computer-aided, extremely user-friendly control system, recording of all parameters. Recordings can be processed, supplemented with batch data, etc., and archived and printed. -Printer and UPS integrated in the controller cabinet -Automatically generated report after each heating cycle -Thyristor-controlled -2 opposing, lockable doors with safety interlock -5-sided heating -Manual air inlet damper -Motorized exhaust damper -Stainless steel exhaust hood with pipe connection flange -Calibrated control thermocouples for the three heating zones -Temperature accuracy: ± 15 °C from 500 to 850 °C, ± 10 °C above 850 °C, all values according to DIN 17052-1 in the empty working space, without recording -Separate control cabinet -Audible alarm and alarm light -Overtemperature limiter -Power: 75 kW -Oven weight approx. 2320 kg + control cabinet + controller cabinet -DGUV V3 test currently valid with report -Documentation, CE declaration, circuit diagrams The oven is in TOP condition. It has been used for approximately 10 months in a cleanroom for the production of implants and is of high quality (new price 100,000 EUR net) and absolutely clean. We would be happy to offer installation and commissioning as well as training for your employees. Please contact us! We offer new and used industrial furnaces. Inspection in our warehouse upon request! Fjdpfx Akozbr U Uo Uspl Chamber furnace, furnace, kilns, annealing furnace, firing furnace, hardening furnace, heat treatment furnace, tempering furnace, enameling furnace, drying oven, industrial furnace, ceramic furnace, tempering furnace, sintering furnace

Condition: used, Year of construction: 1999, functionality: unexamined, input voltage: 380 V, input frequency: 50 Hz, temperature: 1,300 °C, number of chambers: 1, control type: PLC-controlled, fuel type: gas, Equipment: documentation/manual, No. 1 Industrial car furnace / USED, year 1999, for heat treatments on metals (tempering, annealing, normalizing, stress relieving, preheating, sintering), and for firing ceramics and porcelain. Type: STC2400 Maximum temperature: 1300°C No. 1 motorized car No. 1 flap door Thermal power: 240,000 kcal/h Power supply: 400 V 3-phase + neutral + ground, 50 Hz Fsdpfxszxxm Rs Ak Uopl Control panel type: ATR 313 No. 1 heat exchanger made of stainless steel Machine sold as is, where is.

Condition: new, # suitable for treatment under inert gas # with rapid cooling by fan external dimensions (w x h x d): 1500 x 1600 x 2500 mm useable dimensions (w x h x d): 750 x 600 x 1100 mm temperature: 1200°C electrical heated: approx.. 42 kW charge weight: 700 kg Fpsdpfx Akjcdi R Ee Usl

Condition: ready for operation (used), Heraeus MR 260 Annealing Furnace Internal dimensions: 260mm x 500mm x 160mm (W x D x H) Space required: 1100mm x 700mm x 1560mm (L x W x H) Fpjdpfxjzu Nate Ak Uel Weight: 150 kg Rated temperature: 1000°C You are welcome to visit us for an inspection. We can arrange cost-effective shipping for you! You will receive a proper invoice. For international customers, a net invoice can also be issued. A valid VAT identification number is required. Subject to prior sale. Visit our shop and browse our other offers. The company names and trademarks mentioned are the property of their respective owners and are used solely for identification and description of the products. Deviations from technical data as well as errors in the description of the item may occur and are subject to change.

Condition: refurbished (used), Year of construction: 2010, machine/vehicle number: SN214289, functionality: fully functional, Completely overhauled, electrical system renewed including conversion to thyristor technology, as well as installation of new controllers! -Maximum temperature 260°C -Capacity 9000 liters -Nabertherm controller P 300 (9 programs, each with 40 segments) -HAS (High-Accuracy System), a highly accurate system for temperature control and documentation -Double door -Internal dimensions W x D x H 1500 x 3000 x 2000 mm -External dimensions W x D x H 2400 x 3860 x 2830 mm -Temperature limit selector -Thermocouple type K -Signal column -Access ramp, oven with bottom insulation, high temperature uniformity -Circulation rate 18000 m³/h -Power 93 kW -Documentation, CE -Electrically tested and with current DGUV test report The oven is calibrated according to DIN 17052 as of February 2025. This standard ensures that the temperature throughout the oven chamber is within defined tolerances. Suitable for applications such as heat treatment of metals or in additive manufacturing (3D printing) when processes that comply with standards are required. Inspection can be arranged at our warehouse at any time. We offer new and used industrial ovens, which we can also modify and expand according to customer requirements. Fodpfxoyxl Epe Ak Ujpl Oven, furnaces, drying oven, industrial oven, drying cabinet, heat treatment oven, heat chamber, convection oven, chamber oven, heating oven, chamber convection oven, tempering oven, annealing oven, hardening oven.

Condition: reconditioned (used), Year of construction: 2017, machine/vehicle number: SN48357, functionality: fully functional, Chamber furnace with exhaust hood, fully refurbished, 12-month warranty, available for immediate delivery - Max. temperature: 1300 °C - Internal dimensions (W x D x H): 400 x 400 x 400 mm - Capacity: 60 liters - Separate main switch - 5-sided heating - Supply and exhaust air with electrically actuated dampers (driven by Belimo actuators) - Supply air fan with frequency converter, controlled via regulator - Stainless steel exhaust hood - Bentrup 507 control system with thyristor control - Note: Controller language is German only; switching to other languages is not possible! - Additional drag element Type S for external recording Fsdstbq Eqspfx Ak Uspl - Documentation included - Net weight: 250 kg - Power consumption: 18 kW - Current rating: 26 amperes - Supply voltage: 3/N/PE 400VAC - Connection type: prepared for fixed connection, 32 A plug - Documentation, CE declaration - Electrically tested and supplied with current DGUV test protocol Inspection by appointment. Furnace, furnaces, annealing furnace, industrial furnace, chamber furnace, kiln, curing furnace, tempering furnace, laboratory furnace, hardening furnace, ceramic furnace

Condition: good (used), Year of construction: 2014, Overall dimensions: 12.4 x 18.8 m incl. safety fencing Number of baskets per oven: 2x 1,170 x 1,150 x 2,000 mm Reference load weight (net/gross): 1,285 / 2,185 kg Max. load weight (net/gross): 2,000 / 2,700 kg Load: 2,050 x 1,150 x 2,800 mm, external dimensions: 2,950 x 6,400 x 7,800 mm Max. temperature: 600 °C Operating temperature: 510 °C Total heating capacity: 2 x 81 kW = 162 kW electric Quenching water bath: Type = QT-24.16.57/71E Temperature bath max.: 70°C, chamfering volume = 20 m^3 2 ageing furnaces: Type = ADBF-24.16.30/250E External dimensions: 2,800 x 4,850 x 4,000 mm Oven temperature max.: 250°C Fjdpfx Aezvnk Hok Ujpl Operating temperature: 180 °C Total output: 2x 40.5 kW = 81 kW Electrical storage/retrieval section, Gea cooling coil, protective housing, safety equipment, system control 1,056 annealing baskets with stanchion pallets System already dismantled, packed and stored

Condition: excellent (used), Mesh belt continuous furnace CIEFFE Fsdpjxpuahofx Ak Uopl type: FNC procedure: tempering, carbonitriding, case hardening lenght: appr. 52 m belt (H x w x d): 25 X 930 X 9300 mm production output: 80-1000Kg/ h connected load: 170kW (HTO) + 35kW (wash) + 135kW (tempering) Heating capacity of natural gas: 768kW (annealing furnace) + 643kW (tempering furnace) annealing furnace: Belt speed: 20 -172 mm/min max. temperature: 910°C temperature uniformity: ± 7°C (area 1-3), ± 5°C (area 4-6) washing machine: wide conveyor belt: 1000 mm washing sink: 1800 lt rising tank: 1200 lt quantity per hourly production: 700dm3/h tempering furnace: belt speed: 60 - 234 mm/min max. temperature: 650°C temperature uniformity: ± 5°C (150-600°C)

Condition: ready for operation (used), Year of construction: 1977, Usable furnace width: 600mm, usable furnace height: 310mm, clear passage height: 350mm, furnace zone length: 3500mm, number of heating zones: 3, radiant tube control: On/Off, radiant tube monitoring: via UV cell, max. temperature: 1050°C, operating temperature: approx. 800-1000°C, material processed: transformer and slit-strip cores, net/gross throughput: 750/860kg/h, max. grate load: 250kg, permissible grate weight: 50kg, cycle time per grate: approx. 20min, heating, equalizing, holding: approx. 850°C, approx. 120min, cooling: from approx. 850°C to below approx. 200°C in approx. 180min, number of grates: inlet lock: 1, annealing furnace: 6, furnace neck: 1, cooling section: 9, outlet lock: 0, grate return transport (buffer): 18, grate width: 600mm, grate length: 600mm, grate height: 60mm, overall grate height: 210mm, frame height: 150mm, weight per grate: approx. 50kg, annealing furnace length: 5000mm, cooling zone length: 5700mm, overall furnace system length: 15,100mm, loading height of the system: 700mm, with an Exogas Generator Gebrüder Hammer GmbH and documentation. An on-site inspection is possible. Fpodpfx Aksztrbko Usl

Condition: used, Year of construction: 2003, machine/vehicle number: 3945, functionality: fully functional, Retort Type Mesh Belt Furnace Typ: BLH with protective gas atmosphere Heat treatment line with protective atmosphere KOHNLE BLH-950-250/50-1800 Fodpfsyn Rgvsx Ak Uepl Year of production: 2003 Serial number 3945 Hardening in a protective atmosphere, cooling in oil, washing and degreasing and tempering It consists of - Vibrator for charging - 300 kg capacity - Magnetic conveyor for filling the furnace - Tempering furnace - max working temperature 950 C 3 temperature control zones strip width 250 mm Capacity 30-50 kg/h Tunnel length 1800 mm Protective atmosphere Propane (possible change of gas for a protective atmosphere) - Oil quench with cooling oil, temperature 70C - Magnetic conveyor for extracting goods - Stand for washing and degreasing - vibrator for charging Annealing furnace - max temperature 500 C Control cabinet SIEMENS ALL ORIGINAL TECHNICAL DOCUMENTATION FROM THE MACHINE Installation dimensions 17 m x 2 m x 2.5 m Dismantling and loading costs are charged additionally The price of the mentioned line is not fixed for serious enquiries

Year of construction: 2000, condition: good (used), Temptec annealing furnace: Max workpiece size: approx. 1200 × 1200 × 1200 mm Loaded for transport. Fsdpfxox Tcmyj Ak Ujpl

Condition: as good as new (ex-display), Year of construction: 2025, functionality: fully functional, New machine, immediately available, 12 months warranty -Internal dimensions (w x d x h): 1250 x 4000 x 1450 mm Fpjdpoy Avmljfx Ak Uel -External dimensions (w x d x h): 1900 x 4900 x 2500 mm -Power consumption: 240 kW -Current consumption: 350 Amperes -Maximum temperature: 1300 °C -Oven weight (approx.): 6000 kg -Control system: JUMO IMAGO 500 -Software packages: (OPCA & PCC) -Display unit: JUMO Logoscreen 601 -Includes: feedthrough hole and 6 additional slots for recording type K customer thermocouples -Multi-zone design (3 zones) -Switchgear with solid-state relays -Climate control for the switchgear -Automatic inlet and outlet dampers -Controlled cooling system (including frequency converter, controlled via the control system) -Electrically driven furnace car -Maximum load: 3.5 tons -Swinging door -Documentation, CE declaration We would be happy to offer installation, commissioning, and training for your employees. Please contact us! We stock new and used industrial furnaces. Inspections in our warehouse are possible upon request. Furnace car oven, car hearth oven, furnaces, annealing furnace, firing furnace, hardening furnace, heat treatment furnace, oven, stress-relieving furnace, enamelling furnace, drying oven, industrial furnace, bogie hearth furnace, car hearth furnace, shuttle kiln, bogie hearth kiln

Condition: as good as new (ex-display), Year of construction: 2025, functionality: fully functional, New unit, in stock, immediately available -Volume 18,000 liters -Maximum temperature 350°C -Internal dimensions L x W x H 4100 x 2100 x 2100 mm -External dimensions (with rails) L 9970 x W 3060 x H (with lift-up door) 6110 mm -Control system Eurotherm Nanodac -Temperature stability (at rated temperature without load) ±5°C -Automatic inlet and outlet air dampers -Electric lift-up door -Electrically driven hearth carriage -Power 247 ± 9% kW -400 V, 50 Hz -Documentation, CE declaration We would be pleased to offer installation and commissioning, as well as training for your employees. Please contact us! Fedpfxeu Hma Nj Ak Uspl We offer new and used industrial furnaces. Inspections in our warehouse are available upon request! Furnace, kilns, annealing furnace, firing furnace, hardening furnace, heat treatment furnace, tempering furnace, enamelling furnace, drying oven, industrial furnace, heating chamber, heating oven, temperature oven, drying cabinet, chamber furnace, large-volume furnace, bogie hearth furnace, car hearth furnace, shuttle kiln, bogie hearth kiln.

Condition: excellent (used), Sat B2599A Drawer oven 130 °C If very different products or product parts with equally different annealing times are to be treated independently of each other in the smallest possible space, drawer ovens are the smartest ergonomic solution. Oven data Fpodpjim Ik Sefx Ak Ujl Manufacturer: Sat Model: B 2599 A Type: 1000T Type: Drawer oven Outer dimensions of the furnace width with control cabinet: 2500 mm depth: 1700 mm Height: 2250 mm Usable volume in each drawer width: 1200 mm depth: 850 mm Height: 170 mm (measured 178 mm) Maximum working temperature: 130 °C Temperature homogeneity in the usable volume, when stabilized : +/-3°C at 80°C Frame : The basic structure consists of a non-alloyed steel beam structure, on which the external lighting made of non-alloyed steel is painted in RAL 1013 (pearl white). The furnace inner casing is made of aluminized steel sheet. Insulation between the two furnace housings (inner/outer housing) is provided by 120 mm rock wool. Floor: Same as the furnace walls, with 120 mm thick thermal insulation. Height (from factory floor to I. drawer): 800 mm +/100 mm adjustable by the furnace feet. Openings: 3 drawers, height 250 mm, for a usable load of 120 mm height. Maintenance doors : 2-leaf maintenance door on the back of the oven. Secured by screws. This door allows complete access to the inside of the furnace. Parts handling: The handling of the parts is ensured by 3 drawers (one above the other). Height between each drawer : 250 mm Usable height per drawer : 170 mm, with almost 10 mm reserve. The drawers are smooth and equipped with a locking piece at the bottom of the drawer to reduce heat loss when opening. Each drawer has a useful load capacity of 120 Kg with load distribution over the entire surface. Load peaks up to 240 Kg can be supported. The drawer seals are made of silicone. The locks of each drawer are ensured by electromagnets and controlled by the Siemens system. Timing of the minimum preheating time with a timer per drawer (located in the electrical cabinet). Timing of the maximum preheating time with one timer per drawer (located in the electrical cabinet). One temperature indicator is provided per drawer. These indicators will be located on the front of the furnace, to the left of the drawers. Financing through our bank is also possible. komplett-konzept.leasingo.de More industrial furnaces in other sizes - new and used - you can find in our store! International shipping costs on request!

Year of construction: 2010, condition: refurbished (used), Vacuum furnace for heat treatment of metals with a molybdenum chamber. A high vacuum of 10^-6 mbar is achieved in the furnace. Maximum operating temperature 1300 C. Dimensions of the working chamber: 0.35 x 0.42 m diameter x height. Molybdenum heating chamber. Closed circuit cooling system with a buffer tank Pumping system with a mechanical and turbomolecular pump. Ability to perform processes: • Annealing in high vacuum • Stress relief • Vacuum brazing Fpjdpfjn Snx Hex Ak Uol • Vacuum brazing • etc. The stove is 100% functional after modernization. Sales with installation and commissioning at the customer's place. The final price depends on the scope of modernization, agreed individually with the client. If you have any questions, please contact us.

Condition: ready for operation (used), Year of construction: 2005, The system consists of two bell furnaces, maximum temperature: 1100°C, annealing chamber: 2x 1000mm, electrical connection: delta, current rating: 433A, connected load: 300kW, equipment: power control, temperature control, process monitoring, safety controller, emergency stop system, motorized drive for bell movement, air conditioning unit, electrical control cabinet, and control system. Inspection on site is possible. Fpjdpozhw Sdefx Ak Usl

Year of construction: 2019, condition: new, machine/vehicle number: BI3, Annealing furnace for stress-free annealing and forming of acrylic glass The furnace has two doors on one side and two narrow doors with a rail system on the rear side. The sheets are hung in there and pneumatically clamped and released using a foot pedal. - The furnace has a maximum temperature of 230°C and a permanent deviation of approximately +/-3°C from the set temperature at 75°C. Fpsdpeb Nzycsfx Ak Uol - The internal dimensions are approximately 1600 mm wide x 2000 mm deep. In terms of height, the furnace can accommodate a 1800 mm high sheet hanging freely within the rail system. - The rail system can be seen in the attached images. The rail system can also be mounted on the front side. It can accommodate sheet thicknesses from 1.5 to 25 mm and support a sheet weight of up to 150 kg. - The power can be adjusted in several stages. - Air circulation of approximately 3,000 m³/h - For safety reasons, the doors can also be opened from the inside. - Safety device that also shuts off the heating in the event of a fan failure.