Radiant gas heater, aluminised steel reflectors, induced burner, 48 kW heat input, natural gas consumption 4.6 m³/h, horizontal mounting height 7.5-13 m, length 9.4 m, weight 153 kg, 2 year WARRANTY
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Click on the Model for technical data, dimensions, accessories
VSUTE U-Tube models - aluminised steel reflectors, induced burner
VS15UTE 15 kW heat input, natural gas consumption 1.4 m³/h, horizontal mounting height 4-5 m, length 4.5 m, weight 58 kg, 2 year WARRANTY
VS15UTE
15 kW heat input, natural gas consumption 1.4 m³/h, horizontal mounting height 4-5 m, length 4.5 m, weight 58 kg, 2 year WARRANTY
VS25UTE 23.5 kW heat input, natural gas consumption 2.3 m³/h, horizontal mounting height 5-8 m, length 5.1 m, weight 64 kg, 2 year WARRANTY
VS25UTE
23.5 kW heat input, natural gas consumption 2.3 m³/h, horizontal mounting height 5-8 m, length 5.1 m, weight 64 kg, 2 year WARRANTY
VS35UTE 36 kW heat input, natural gas consumption 3.4 m³/h, horizontal mounting height 6-10 m, length 7.6 m, weight 131 kg, 2 year WARRANTY
VS35UTE
36 kW heat input, natural gas consumption 3.4 m³/h, horizontal mounting height 6-10 m, length 7.6 m, weight 131 kg, 2 year WARRANTY
VS40UTE 40 kW heat input, natural gas consumption 3.8 m³/h, horizontal mounting height 6.5-11 m, length 8.5 m, weight 140 kg, 2 year WARRANTY
VS40UTE
40 kW heat input, natural gas consumption 3.8 m³/h, horizontal mounting height 6.5-11 m, length 8.5 m, weight 140 kg, 2 year WARRANTY
VS45UTE 44 kW heat input, natural gas consumption 4.2 m³/h, horizontal mounting height 7-12 m, length 9.4 m, weight 153 kg, 2 year WARRANTY
VS45UTE
44 kW heat input, natural gas consumption 4.2 m³/h, horizontal mounting height 7-12 m, length 9.4 m, weight 153 kg, 2 year WARRANTY
VS50UTE 48 kW heat input, natural gas consumption 4.6 m³/h, horizontal mounting height 7.5-13 m, length 9.4 m, weight 153 kg, 2 year WARRANTY
VS50UTE
48 kW heat input, natural gas consumption 4.6 m³/h, horizontal mounting height 7.5-13 m, length 9.4 m, weight 153 kg, 2 year WARRANTY
Model VS VS / VSA
15UT4 15UT 20UT 25UT 30UT 35UT 40UT 45UT 50UT
Nominal gross heat input kW 15.8 15.0 19.5 23.5 29.5 36.0 40.0 44.0 48.0
Nominal gas rate per burner natural gas (G20) m3/h 1.5 1.4 1.9 2.3 2.8 3.4 3.8 4.2 4.6
propane (G31) l/h - 2.16 2.73 3.34 3.98 5.12 5.68 6.25 6.82
Gas connection BSP/Rc 1/2"
Electrical supply   230V 1 phase 50Hz, max. 1 A
Exhaust flue – twin wall diameter mm 127
Flue gas temperature natural gas (G20) °C 200 - 250
propane (G31) °C - 190 - 240
Dimensions length m 2.22 3.42 4.14 5.07 6.03 5.71 5.71 7.47 7.47
width mm 675 500 500 500 500 675 675 675 675
height mm 260 240 240 240 240 260 260 260 260
Recommended mounting height range horizontal mounting m 4 - 5 4 - 5 4.5 - 7 5 - 8 5.5 - 9 6 - 10 6.5 - 11 7 - 12 7.5 - 13
inclined / wall mounted m 3.5 - 4.5 3.5 - 4.5 3.5 - 5 4 - 5 4 - 6 4.5 - 6.5 5 - 7 5.5 - 8 6 - 9
Weight kg 41 43 50 60 70 92 92 121 121

Minimum clearance distances to combustible surfaces

Gas heaters VSUT clearance distances to combustible surfaces

Model VS15UT4 VS15UT VS20UT VS25UT VS30UT VS35UT VS40UT VS45UT VS50UT
- VSA15UT VSA20UT VSA25UT VSA30UT VSA35UT VSA40UT VSA45UT VSA50UT
Above reflector (VSUT natural gas models) A 180 180 180 180
Above reflector (all VSAUT and VSUT LPG models) A1 280 280 280 280
Above burner & fan assembly flued B 500 500 500 500
To the sides C 900 1000 1100 1100
Beneath tubes D 1500 1700 2100 2100
Horizontally from fan outlet unflued E 1200 1200 1200 1200
End of the heater to the wall F 500 500 500 500

U tube heater model concentrates radiant heat to a certain area of the room and not the whole of its space. Units available in two versions:

  • VSUT - equipped with stainless steel reflectors and reflector end caps
  • VSAUT - 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 16 to 48 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