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Katherm NK
Heating

Natural convection trench heating.

Katherm NK
Your benefits:
  • Compact, optimised for performance

  • Heat outputs in accordance with DIN EN 16430

  • Minimal dimensions, high outputs

Key features

  • Short delivery times for our standard trenches
  • A matching edge profile for a perfect design with every grille
  • Quick installation with Eurokonus valve fittings, height-adjustment feet and raised floor mounting feet
  • Project solutions are available for all geometries with mitred corners, curved designs, column recesses or chamfered trenches
  •  accessories Katherm module system

 

 

TECHNOLOGY

  • Effective cold air screening of large windows
  • Unique PowerKon high-performance convector for high outputs
  • Convenient surface- or flush-mounted electrical controller
 

AREAS OF APPLICATION / INSTALLATION

  • Clear view and feel good temperature in front of full-length glass façades
  • With natural convection for complete room heating, a supplementary heat supply and/or cold air screening
  • 22 length variations, 5 unit widths and 4 unit heights

... also good to know

  • The Katherm NK benefits from the expertise of our in-house Research and Development Center, tailored to customer requirements from the marketplace.
  • The heat outputs were measured and determined in accordance with E DIN EN 16430 "Fan-assisted radiators, convectors and trench convectors" Part 1: "Technical specifications and requirements" and Part 2: "Test method and rating of the heat output."
  • The NK standard lengths can be extended in 200 mm increments from 800 mm to 5000 mm. Lengths that are not available can be created with individual tailor-made units.
Technical catalogues
Katherm NK trench heatingdownload as.pdf, 1,99 MB
Leaflets/Flyers
Spezial Katherm NK trench heating , screen-optimizeddownload as.pdf, 2,24 MB
Spezial Katherm Modular Systemdownload as.pdf, 1,46 MB
Cross-product information
Product overview, products available in UKdownload as.pdf, 7,97 MB
Spezial Commercial buildingsdownload as.pdf, 2,17 MB
Spezial KaControl building automationdownload as.pdf, 794,90 KB
Spezial hoteldownload as.pdf, 2,41 MB
Information sheet trench heating - BS EN 16430, applicable in UKdownload as.pdf, 215,12 KB
Installation manuals
Katherm NKdownload as.pdf, 1,33 MB
Declarations/Certificates
Building product declaration Katherm trench heatingdownload as.pdf, 333,01 KB
Interseroh Recycling Certificatedownload as.pdf, 627,76 KB
TÜV Certificate ISO 9001:2008download as.pdf, 443,11 KB
EU Declaration of Conformity Katherm trench heatingdownload as.pdf, 1,09 MB
BIM data (Building Information Modeling)
BIM data download asDownload
CAD drawings
Katherm NK, trench width 137 mm, trench height 92 mm, cross sections, viewsdownload as.dwg, 93,43 KB.dxf, 2,03 MB.pdf, 61,49 KB
Katherm NK, trench width 137 mm, trench height 120 mm, cross sections, viewsdownload as.dwg, 94,12 KB.dxf, 2,00 MB.pdf, 61,76 KB
Katherm NK, trench width 137 mm, trench heights 92/120 mm, trench lengths 800 - 3200 mm, top viewsdownload as.dwg, 174,22 KB.dxf, 2,82 MB.pdf, 77,83 KB
Katherm NK, trench width 137 mm, trench heights 92/120 mm, trench lengths 3400 - 4200 mm, top viewsdownload as.dwg, 71,02 KB.dxf, 479,52 KB.pdf, 44,66 KB
Katherm NK, trench width 137 mm, trench heights 92/120 mm, trench lengths 4400 - 5000 mm, top viewsdownload as.dwg, 62,17 KB.dxf, 405,38 KB.pdf, 40,38 KB
Katherm NK, trench width 182 mm, trench height 92 mm, cross sections, viewsdownload as.dwg, 100,53 KB.dxf, 2,15 MB.pdf, 64,85 KB
Katherm NK, trench width 182 mm, trench height 120 mm, cross sections, viewsdownload as.dwg, 97,40 KB.dxf, 2,04 MB.pdf, 64,85 KB
Katherm NK, trench width 182 mm, trench height 150 mm, cross sections, viewsdownload as.dwg, 111,97 KB.dxf, 2,08 MB.pdf, 66,90 KB
Katherm NK, trench width 182 mm, trench height 200 mm, cross sections, viewsdownload as.dwg, 110,91 KB.dxf, 2,08 MB.pdf, 66,88 KB
Katherm NK, trench width 182 mm, trench heights 92/120 mm, trench lengths 800 - 3200 mm, top viewsdownload as.dwg, 201,36 KB.dxf, 3,50 MB.pdf, 83,06 KB
Katherm NK, trench width 182 mm, trench heights 92/120 mm, trench lengths 3400 - 5000 mm, top viewsdownload as.dwg, 151,49 KB.dxf, 1,01 MB.pdf, 74,46 KB
Katherm NK, trench width 182 mm, trench heights 150/200 mm, trench lengths 800 - 3200 mm, top viewsdownload as.dwg, 159,93 KB.dxf, 3,10 MB.pdf, 73,90 KB
Katherm NK, trench width 182 mm, trench heights 150/200 mm, trench lengths 3400 - 5000 mm, top viewsdownload as.dwg, 118,64 KB.dxf, 831,56 KB.pdf, 68,25 KB
Katherm NK, trench width 232 mm, trench height 92 mm, cross sections, viewsdownload as.dwg, 97,09 KB.dxf, 1,98 MB.pdf, 62,88 KB
Katherm NK, trench width 232 mm, trench height 120 mm, cross sections, viewsdownload as.dwg, 94,53 KB.dxf, 1,97 MB.pdf, 63,84 KB
Katherm NK, trench width 232 mm, trench height 150 mm, cross sections, viewsdownload as.dwg, 107,38 KB.dxf, 2,07 MB.pdf, 64,69 KB
Katherm NK, trench width 232 mm, trench height 200 mm, cross sections, viewsdownload as.dwg, 107,66 KB.dxf, 2,06 MB.pdf, 64,80 KB
Katherm NK, trench width 232 mm, trench heights 92/120 mm, trench lengths 800 - 3200 mm, top viewsdownload as.dwg, 176,20 KB.dxf, 3,51 MB.pdf, 81,29 KB
Katherm NK, trench width 232 mm, trench heights 92/120 mm, trench lengths 3400 - 5000 mm, top viewsdownload as.dwg, 130,67 KB.dxf, 965,56 KB.pdf, 72,12 KB
Katherm NK, trench width 232 mm, trench heights 150/200 mm, trench lengths 800 - 3200 mm, top viewsdownload as.dwg, 155,97 KB.dxf, 3,18 MB.pdf, 73,09 KB
Katherm NK, trench width 232 mm, trench heights 150/200 mm, trench lengths 3400 - 5000 mm, top viewsdownload as.dwg, 111,72 KB.dxf, 805,50 KB.pdf, 67,89 KB
Katherm NK, trench width 300 mm, trench height 92 mm, trench lengths 800 - 3200 mm, top viewsdownload as.dwg, 332,83 KB.dxf, 5,23 MB.pdf, 88,57 KB
Katherm NK, trench width 300 mm, trench height 92 mm, trench lengths 3400 - 5000 mm, top viewsdownload as.dwg, 148,52 KB.dxf, 1,02 MB.pdf, 76,43 KB
Katherm NK, trench width 300 mm, trench height 92 mm, cross sections, viewsdownload as.dwg, 84,49 KB.dxf, 1,89 MB.pdf, 63,78 KB
Katherm NK, trench width 300 mm, trench height 120 mm, trench lengths 800 - 3200 mm, top viewsdownload as.dwg, 334,58 KB.dxf, 5,28 MB.pdf, 88,40 KB
Katherm NK, trench width 300 mm, trench height 120 mm, trench lengths 3400 - 5000 mm, top viewsdownload as.dwg, 148,02 KB.dxf, 1,02 MB.pdf, 76,19 KB
Katherm NK, trench width 300 mm, trench height 120 mm, cross sections, viewsdownload as.dwg, 97,84 KB.dxf, 2,08 MB.pdf, 65,21 KB
Katherm NK, trench width 300 mm, trench height 150 mm, trench lengths 800 - 3200 mm, top viewsdownload as.dwg, 182,94 KB.dxf, 3,70 MB.pdf, 88,57 KB
Katherm NK, trench width 300 mm, trench height 150 mm, trench lengths 3400 - 5000 mm, top viewsdownload as.dwg, 116,42 KB.dxf, 835,21 KB.pdf, 70,30 KB
Katherm NK, trench width 300 mm, trench height 150 mm, cross sections, viewsdownload as.dwg, 113,32 KB.dxf, 2,09 MB.pdf, 66,54 KB
Katherm NK, trench width 300 mm, trench height 200 mm, trench lengths 800 - 3200 mm, top viewsdownload as.dwg, 187,05 KB.dxf, 3,78 MB.pdf, 79,09 KB
Katherm NK, trench width 300 mm, trench height 200 mm, trench lengths 3400 - 5000 mm, top viewsdownload as.dwg, 116,76 KB.dxf, 835,46 KB.pdf, 70,47 KB
Katherm NK, trench width 300 mm, trench height 200 mm, cross sections, viewsdownload as.dwg, 113,29 KB.dxf, 2,19 MB.pdf, 68,37 KB
Katherm NK, trench width 380 mm, trench height 92 mm, trench lengths 800 - 3200 mm, top viewsdownload as.dwg, 330,67 KB.dxf, 5,10 MB.pdf, 86,43 KB
Katherm NK, trench width 380 mm, trench height 92 mm, trench lengths 3400 - 5000 mm, top viewsdownload as.dwg, 137,80 KB.dxf, 1012,57 KB.pdf, 78,26 KB
Katherm NK, trench width 380 mm, trench height 92 mm, cross sections, viewsdownload as.dwg, 106,00 KB.dxf, 2,15 MB.pdf, 64,66 KB
Katherm NK, trench width 380 mm, trench height 120 mm, trench lengths 800 - 3200 mm, top viewsdownload as.dwg, 182,33 KB.dxf, 4,08 MB.pdf, 85,05 KB
Katherm NK, trench width 380 mm, trench height 120 mm, trench lengths 3400 - 5000 mm, top viewsdownload as.dwg, 130,65 KB.dxf, 964,70 KB.pdf, 76,11 KB
Katherm NK, trench width 380 mm, trench height 120 mm, cross sections, viewsdownload as.dwg, 112,78 KB.dxf, 2,19 MB.pdf, 66,95 KB
Katherm NK, trench width 380 mm, trench height 150 mm, trench lengths 800 - 3200 mm, top viewsdownload as.dwg, 171,35 KB.dxf, 3,48 MB.pdf, 78,97 KB
Katherm NK, trench width 380 mm, trench height 150 mm, trench lengths 3400 - 5000 mm, top viewsdownload as.dwg, 122,13 KB.dxf, 948,38 KB.pdf, 73,07 KB
Katherm NK, trench width 380 mm, trench height 150 mm, cross sections, viewsdownload as.dwg, 115,31 KB.dxf, 2,17 MB.pdf, 68,49 KB
Katherm NK, trench width 380 mm, trench height 200 mm, trench lengths 800 - 3200 mm, top viewsdownload as.dwg, 172,73 KB.dxf, 3,57 MB.pdf, 79,57 KB
Katherm NK, trench width 380 mm, trench height 200 mm, trench lengths 3400 - 5000 mm, top viewsdownload as.dwg, 122,01 KB.dxf, 947,77 KB.pdf, 70,89 KB
Katherm NK, trench width 380 mm, trench height 200 mm, cross sections, viewsdownload as.dwg, 120,29 KB.dxf, 2,23 MB.pdf, 68,88 KB
Technical details

This table only gives you a brief overview of the technical data. If you are looking for a more detailed product description and further technical data, please use the technical catalogue. The product configurator and the calculation program will help you to find the right article for your selection.


Valves and Return shut-off valves

Valve body, axial, 1/2" connection, type 246909

suitable for:
Katherm NK 137/182 (trench heights 92 mm and 120 mm)
Katherm NX (trench heights 92 mm and 120 mm)
Katherm QX
Katherm HK 320
Download specifications (.rtf)
Article no.:
194000246909

Valve body, axial, 1/2" connection, pre-settable, type 346911

suitable for:
Katherm NK 137/182 (trench heights 92 mm and 120 mm)
Katherm NX (trench heights 92 mm and 120 mm)
Katherm QX
Katherm HK 320
Download specifications (.rtf)
Article no.:
194000346911

Valve body, straight, 1/2" connection, type 146909

suitable for:
Katherm NK 182 (trench heights 150 mm and 200 mm)
Katherm NK 232/300/380 (all trench heights)
Katherm NX (trench heights 150 mm and 200 mm)
Katherm QK
Katherm HK 340
Download specifications (.rtf)
Article no.:
194000146909

Valve body, straight, 1/2" connection, pre-settable, type 346909

suitable for:
Katherm NK 182 (trench heights 150 mm and 200 mm)
Katherm NK 232/300/380 (all trench heights)
Katherm NX (trench heights 150 mm and 200 mm)
Katherm QK
Katherm HK 340
Download specifications (.rtf)
Article no.:
194000346909

Pre-setting key, type 346915

Pre-setting key for valve bodies type 346909, 346910, 346911 and convector valve set type 126103, pre-settable, one required per project
Download specifications (.rtf)
Article no.:
194000346915

Return shut-off valve, 1/2" connection, straight, type 145952

suitable for:
Katherm NK, Katherm NX,
Katherm QK, Katherm QX,
Katherm HK 320, Katherm HK 340
Download specifications (.rtf)
Article no.:
194000145952

Valve Actuators

Thermoelectric actuator, 230 V, type 146905

Download specifications (.rtf)
Article no.:
194000146905

Thermostats

Room thermostat, surface-mounted, white, 230 V, with thermal feedback, type 146904

Installation instructions: i071_raumthermostat_30055_146904_int.pdf
Installation instructions: i213_raumthermostat_30055_146904_gb.pdf

Download specifications (.rtf)
Article no.:
194000146904

Clock thermostat, digital timer with day/night/week programme, power reserve, settable night-setback, 230 V, protection class IP 20, type 146910

Installation instructions: i199_uhrenthermostat_146910_30056_gb.pdf

Download specifications (.rtf)
Article no.:
194000146910

Clock thermostat, flush-mounted, 230 V, white, type 146933

Installation instructions: i414_uhrenthermostat_146933_gb.pdf

Download specifications (.rtf)
Article no.:
194000146933

Room thermostat, flush-mounted, Jung, white front cover and frame, type 146927

Download specifications (.rtf)
Article no.:
194000146927

Surcharge for mitres

Surcharge for mitres, with 90° roll-up grille

Download specifications (.rtf)
Article no.:
194000145513

Surcharge for mitres, with roll-up grille, other angles

Download specifications (.rtf)
Article no.:
194000145613

Surcharge for mitres, with 90° linear grille

Download specifications (.rtf)
Article no.:
194000145713

Surcharge for mitres, with linear grille, other angles

Download specifications (.rtf)
Article no.:
194000145813

Installation covers

Wooden installation cover to protect trench during installation, factory-fitted, grilles are packed separately

Download specifications (.rtf)
Article no.:
194000100913


Can Katherm NK also be used with low water temperatures?

Yes. Depending on the nominal heat load in the room, Katherm NK can be operated with higher temperature ranges, e.g. 75/65 °C, or with lower flow and return water temperatures, such as 45/40 °C or 35/30 °C.

Where can Katherm NK be used?

To operate more effectively, Katherm NK should be installed directly in front of cold glazing where they can provide cold air screening and also provide supplementary heat. If the nominal heat load is appropriate, they can also be used to provide primary heating for the entire space.

What is the free area of the grilles with Katherm NK?

The Katherm NK grilles are designed in such a way that they always a free grille area of approx. 65% in terms of heat output.