Tube infrared heaters for halls, warehouses and sports facilities

42% savings in operating costs

Pleasant working environment

Environmental protection

Payback within 5 years

Tube infrared heaters represent an efficient and economical heating solution for industrial halls, warehouses, production facilities and gymnasiums. The principle of radiant heat ensures uniform heating of people, machinery and floors without unnecessary heat losses into the space under the ceiling.

Compared to conventional warm air heating, there is no dust circulation and no significant temperature differences between the floor and the ceiling, which increases both comfort and energy efficiency of operation. Gas-fired tube infrared heaters are an ideal choice for high buildings with a large air volume, where fast return on investment and low operating costs are essential. Reliable operation, high output and targeted radiant heat make them a professional industrial heating system suitable for year-round use.

We design gas-fired tube infrared heaters especially for buildings with higher heat losses, frequent door opening or variable operation, where flexible system response and efficient heating of large areas are required without the need to heat the entire air volume.

Tube infrared heaters KM – overview of variants

KM-U
KM-1

The KM-U tube infrared heater is designed for heating halls and larger facilities where higher radiant intensity and reliable heating of the working area are required. It provides a strong heating effect and uniform coverage even in large-volume halls with higher ceilings. It is an ideal solution for production and industrial buildings with higher demands on thermal comfort.

Tmavé infrazářiče KM-U zavěšené v průmyslové hale

Tube infrared heaters KM-U for heating industrial halls

Tube infrared heaters are particularly suitable for industrial halls with higher heat losses or with a requirement for fast heat-up. Thanks to the radiant heating principle, they heat people, working areas and objects directly, not primarily the air, which enables efficient operation even in halls with frequent ventilation or door opening.

Compared to radiant panels, they respond more quickly to heating demand and represent a suitable solution especially where the customer has access to a cost-effective gas supply.

Basic characteristics

Heating surface:	Steel tubes Ø 76 to Ø 114 mm
Design:	Two tubes – type U, burner and flue-gas fan: located in common Box
Reflector:	Polished stainless steel, optimalized shape, non-insulated / insulated
Fuel:	Natural gas, propane – butane
Nominal thermal output:	6 up to 40 kW
Length:	3,5 up to 12,5 m
Air suction / Flue gas discharge diameter:	100 mm / 100 mm

Surface temperaures:

tube at burner 550 °C
tube at flue gas fan 150 uo to 180 °C
uniform heat delivery over the length – average surface temperature doesn’t change with length

Control possibilities

manual control ROT-1 (ON/OFF), can be fitted with time relay
control box RA-T for more appliances, week program with manual switch for each appliance
free programmable controller for example with visualisation on PC
to ensure low consumption it is necessary to use globe temperature sensor and controllers allowing external sensors!

Detail KM

Technický řez tmavým infrazářičem KM-U s vyznačenými rozměry a umístěním sálavých trubic.

burner tube
fan tube
stainless steel reflector
suspension bar
opening equipped with two nuts usable for fixation of suspension system
suspension system (wire or nodal chain with adjusting screw)
on request insulation from mineral wool

Technical parameters

Marking	Unit	KM10-U			KM15-U		KM22,5-U				KM30-U		KM36-U	KM45-U
Marking	Unit	6	9	11	13	15	16	19	21	23	26	28	32	36	40
Thermal output	kW	5,9	8,8	11,3	12,5	15,3	16,3	18,6	21,1	22,7	25,9	28,0	32,2	35,5	40,0
Gas consumption NG	m³/h	0,72	1,07	1,37	1,52	1,86	1,98	2,26	2,57	2,76	3,15	3,41	3,92	4,32	4,87
Gas consumption PB	kg/h	0,56	0,82	1,05	1,16	1,42	1,51	1,73	1,97	2,11	2,41	2,61	3,01	3,31	3,74
Total length	mm	3550	4550	4550	5530	5960	5960	8510	8510	9490	9490	9490	9490	10520	12220
Nominal length	m	3	4	5	5	6	6	8	8	9	9	9	9	10	12
Weight non-insulated	kg	75	85	85	105	120	133	165	165	180	180	180	200	220	240
Weight insulated	kg	83	96	96	120	137	150	178	178	205	205	205	225	250	270

Marking	Unit	Value
Marking	Unit	Value
NG overpressure	kPa	2 up to 5
PB overpressure	kPa	3 up to 5
Gas hose connection	inch	G3/4″
Electro	–	230 V, 50 Hz, 90 W (175 W*)
Protection rating	–	IP40

*Valid for KM45-U

Venting systems

Combustion air supply – vertical
Order no. 300.000
Combustion air supply – horizontal
Order no. 300.001
Flue gas discharge – vertical
Order no. 300.003
Flue gas discharge – horizontal
Order no. 300.002
Common supply and discharge – horizontal
Order no. 300.004
Common supply and discharge – vertical
Order no. 300.005

Certification

Gas ceramic infrared heaters KOTRBATÝ KM fulfill all requirements on Ecodesign according to Commision Regulation (EU) 2015 /1188, implementing Directive 2009/125/ES of the European Parliament and of the Council with regard to Ecodesign requirements for local space heaters. Identification data of the products can be found in Technical Informations. All characteristics of the product are approved by EU certificate issued by SZÚ, s.p. Brno, Česká republika.

Gallery of tube infrared heater installations Kotrbatý KM-U and KM-I

You can find more photos of our installations in the gallery on Flickr.com

We are here to help

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Download

Certificate ISO 9001

Certificate of type

Product leaflet

Technical documentation

Technical conditions

CAD Drawings

Assembly manual KM-U 3, 6 m

Assembly manual KM-U 8, 9 m

Assembly manual KM-U 10, 12 m

The KM-1 tube infrared heater is primarily designed for frost protection and background heating of warehouse and operational premises where the objective is to maintain a stable base temperature. It is characterized by lower radiant intensity and wider area coverage, making it suitable for warehouse aisles, handling zones and buildings with lower thermal comfort requirements. It represents an economical solution for uniform tempering of larger spaces without the need for high heat input.

Plynový tmavý infrazářič KM-I instalovaný pod stropem velké průmyslové haly.

Tube infrared heaters KM-1 for heating warehouses

Tube infrared heaters KM-1 are primarily designed for frost protection and background heating of warehouse and logistics premises requiring lower radiant intensity and uniform coverage of larger areas. Unlike systems intended for full-scale heating of production halls, they are mainly used to maintain a stable base temperature within the building.

Thanks to the radiant heating principle, they heat the floor, racking systems and stored goods directly, enabling efficient and economical operation even in cases of frequent ventilation or door opening.