Double linear model evenly distributes radiated heat throughout the floor area of the large-sized rooms. The heater models are twice as long and more powerful than the standard linear model. The unit has two burners that are installed at both ends of the tube and only one extraction fan in the middl...
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VSDLE Double Linear models - aluminised steel reflectors, one fan, two burners
VS15DLE16 30 kW heat input, natural gas consumption 2.8 m³/h, horizontal mounting height 4-5 m, length 16 m, weight 86 kg, 2 year WARRANTY
VS15DLE16
30 kW heat input, natural gas consumption 2.8 m³/h, horizontal mounting height 4-5 m, length 16 m, weight 86 kg, 2 year WARRANTY
VS25DLE16 47 kW heat input, natural gas consumption 4.6 m³/h, horizontal mounting height 5-7 m, length 16 m, weight 106 kg, 2 year WARRANTY
VS25DLE16
47 kW heat input, natural gas consumption 4.6 m³/h, horizontal mounting height 5-7 m, length 16 m, weight 106 kg, 2 year WARRANTY
VS35DLE21 72 kW heat input, natural gas consumption 6.8 m³/h, horizontal mounting height 5-11 m, length 21 m, weight 206 kg, 2 year WARRANTY
VS35DLE21
72 kW heat input, natural gas consumption 6.8 m³/h, horizontal mounting height 5-11 m, length 21 m, weight 206 kg, 2 year WARRANTY
VS40DLE27 80 kW heat input, natural gas consumption 7.6 m³/h, horizontal mounting height 5-11 m, length 27 m, weight 252 kg, 2 year WARRANTY
VS40DLE27
80 kW heat input, natural gas consumption 7.6 m³/h, horizontal mounting height 5-11 m, length 27 m, weight 252 kg, 2 year WARRANTY
VS45DLE27 88 kW heat input, natural gas consumption 8.4 m³/h, horizontal mounting height 6-12 m, length 27 m, weight 252 kg, 2 year WARRANTY
VS45DLE27
88 kW heat input, natural gas consumption 8.4 m³/h, horizontal mounting height 6-12 m, length 27 m, weight 252 kg, 2 year WARRANTY
VS50DLE27 100 kW heat input, natural gas consumption 9.6 m³/h, horizontal mounting height 7-13 m, length 27 m, weight 252 kg, 2 year WARRANTY
VS50DLE27
100 kW heat input, natural gas consumption 9.6 m³/h, horizontal mounting height 7-13 m, length 27 m, weight 252 kg, 2 year WARRANTY
VSDLE Double Linear extended models - aluminised steel reflectors, one fan, two burners
VS25DLE21 47 kW heat input, natural gas consumption 4.6 m³/h, horizontal mounting height 5-7 m, length 21 m, weight 144 kg, 2 year WARRANTY
VS25DLE21
47 kW heat input, natural gas consumption 4.6 m³/h, horizontal mounting height 5-7 m, length 21 m, weight 144 kg, 2 year WARRANTY
VS35DLE27 72 kW heat input, natural gas consumption 6.8 m³/h, horizontal mounting height 5-11 m, length 27 m, weight 252 kg, 2 year WARRANTY
VS35DLE27
72 kW heat input, natural gas consumption 6.8 m³/h, horizontal mounting height 5-11 m, length 27 m, weight 252 kg, 2 year WARRANTY
VS40DLE32 80 kW heat input, natural gas consumption 7.6 m³/h, horizontal mounting height 5-11 m, length 32 m, weight 294 kg, 2 year WARRANTY
VS40DLE32
80 kW heat input, natural gas consumption 7.6 m³/h, horizontal mounting height 5-11 m, length 32 m, weight 294 kg, 2 year WARRANTY
VS45DLE32 88 kW heat input, natural gas consumption 8.4 m³/h, horizontal mounting height 6-12 m, length 32 m, weight 294 kg, 2 year WARRANTY
VS45DLE32
88 kW heat input, natural gas consumption 8.4 m³/h, horizontal mounting height 6-12 m, length 32 m, weight 294 kg, 2 year WARRANTY
VS50DLE32 100 kW heat input, natural gas consumption 9.6 m³/h, horizontal mounting height 7-13 m, length 32 m, weight 294 kg, 2 year WARRANTY
VS50DLE32
100 kW heat input, natural gas consumption 9.6 m³/h, horizontal mounting height 7-13 m, length 32 m, weight 294 kg, 2 year WARRANTY
Model VS / VSA
15DL 20DL 25DL 30DL 35DL 40DL 45DL 50DL
Nominal gross heat input kW 30.0 39.0 47.0 59.0 72.0 80.0 88.0 100.0
Nominal gas rate per burner natural gas (G20) m3/h 2.8 3.8 4.6 5.6 6.8 7.6 8.4 9.6
propane (G31) l/h 4.32 5.46 6.68 7.96 10.24 11.36 12.5 13.64
Gas connection BSP/Rc 1/2"
Electrical supply   230V 1 phase 50Hz, max. 1 A
Exhaust flue – twin wall diameter mm 127
Dimensions standard length m 11.63 13.64 15.70 20.90 21.44 26.64 26.64 26.64
extended length m 15.70 20.90 20.90 24.96 26.64 31.84 31.84 31.84
width mm 315 470
height mm 390
Recommended mounting height range horizontal mounting m 4 - 5 5 - 7 5 - 7 5 - 9 5 - 11 5 - 11 6 - 12 7 - 13
inclined / wall mounted m 3.5 - 4.5 4 - 5 4 - 5 4 - 6 4 - 7 4 - 7 5 - 8 6 - 9
Weight standard length kg 86 98 106 144 206 252 252 252
extended length kg 106 144 144 168 252 294 294 294

Minimum clearance distances to combustible surfaces

Model VS15DL VS20DL VS25DL VS30DL VS35DL VS40DL VS45DL VS50DL
VSA15DL VSA20DL VSA25DL VSA30DL VSA35DL VSA40DL VSA45DL VSA50DL
Above reflector (VSDL natural gas models) 150 150 150 150
Above reflector (all VSADL and VSDL LPG models) 280 280 280 280
Above burner 500 500 500 500
To the sides 750 750 750 750
Beneath tubes 1500 1700 2100 2100
Horizontally from fan outlet unflued 1200 1200 1200 1200
End of the heater to the wall 500 500 500 500
Above fan outlet flued 150 150 150 150
Above fan outlet unflued 500 500 500 500

Double linear model evenly distributes radiated heat throughout the floor area of the large-sized rooms. The heater models are twice as long and more powerful than the standard linear model. The unit has two burners that are installed at both ends of the tube and only one extraction fan in the middle of the device. Such a device is less expensive than two standard Linear heaters. Units are available in two versions:

  • VSDL - equipped with stainless steel reflectors and reflector end caps
  • VSADL - equipped with aluminized steel reflectors without reflector end caps, cheaper version

Introduction

Renowned for its pioneering track record, Nortek, Europe’s leading supplier of radiant tube heating systems, has yet again raised the industry standard in terms of innovation and technical performance.

The range of high efficiency Vision radiant tube heaters delivers exceptional performance in terms of efficiency and the potential to reduce energy costs.

The foundation of this development is a high efficiency advanced burner.

New advanced burner technology

  • New slim-line burner head provides a long evenly distributed flame that dramatically improves temperature distribution along the entire length of the heater, delivering a more even floor coverage
  • Combustion occurs entirely within the firing tube. Not only does this reduce the size and weight of the traditional burner control housing but it also helps to reduce noise levels (as quiet as 47 dB(A) 3m free field)
  • Choice of burner ratings from 30 to 100 kW
  • All units are CE approved
  • NOx emissions as low as 52ppm on certain models – 40% lower than standard radiant heater

ConstructionVision radiant heaters constructions

Bolt in place brackets for safe secure reflector fixing.

Ideal in any application where a secure system is required, such as - wind exposure around overhead doors or hangar doors (walls).

Additional control at the touch of a button

All models are compatible with Nortek ‘SmartCom3’ control systems. SmartCom3 units incorporate a host of features such as self-learning optimised start-up to ensure increased comfort and energy savings.

Radiant Heating

Working in the same way as the sun, radiant heat warms all solid objects and surfaces in its path through electromagnetic waves. Being mounted overhead, Nortek radiant heaters produce infrared heat that is directed downwards to low level by a reflector.

Infrared energy passes inertly through the air, dissipating as heat upon contact with people and surfaces thus creating a comfortable, all-round radiant warmth at lower air temperature. This reduces wasteful heating of empty space and makes substantial energy savings over conventional boiler and air systems.

Universal Application

Radiant heating has traditionally been predominant in industrial and commercial buildings, especially where there are large, high bay areas or where there are a high number of air changes within the environment.

Vision has been developed with these markets in mind and with a view to making radiant heating truly competitive within new smaller industrial and commercial buildings.

Its application is universal including environments with high air change, frequently opened doors, or where there is a need for zonal heating in very large premises.

The highly efficient performance of Vision provides greatly reduced running costs and improved capital payback, setting new industry standards.

Benefits of radiant tube heating

  • Greater Comfort, “sandwiched” between a warm floor below and low intensity span above
  • Increased Efficiency, heat “work zone” not ceiling. Not increasing heat transfer by “scrubbing” building envelope with moving air
  • Faster Recovery when doors open/close, due to heat “reservoir” in the mass of the floor
  • Now Ambi-Rad Improves on a proven concept

Properties of radiant heat

  • Emitted by hot surfaces
  • Travels in straight lines
  • Passes through the air without heating it
  • Absorbed by cooler solid objects on which it falls

Applications

  • Aircraft hangars
  • Automotive workshops and showrooms
  • Factories
  • Retail outlets
  • Sports arenas and halls
  • Warehouses
  • Workshops

Optimum economy and fuel savings

  • The elimination of both distribution and standby losses coupled with high operational efficiencies at the point of use enable fuel savings of up to 65% compared with conventional heating systems.
  • Excellent radiant performance. More of the available heat generated is distributed to floor level thereby improving efficiency and reducing energy consumption.
Vision radiant gas fired heaters
Manuals 15 MB
Declarations of conformity 210 KB
Brochures 1.1 MB
EC certificate 2.5 MB
SmartCom controller
Manuals 2.9 MB
Brochures 1.1 MB