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Thanks to its innovative concept and the use of unique components, such as the bluTek burner, the deltaSchwank combines a whole range of benefits. A radiation factor of 80.6% in combination with a thermal efficiency of 96.3% facilitates a seasonal efficiency of 99.0%. At the same time, the deltaSchwank tube heater is exceptionally environmentally friendly with only 60 mg/kWh NOx.

tube heater reinvented

When developing the deltaSchwank, the Schwank engineers have achieved a technological breakthrough creating a most efficient heating solution that is completely unparalleled in the field of tube heaters. A tube heater has resulted from a combination of the patented, highly-efficient bluTek burner, the geometrically optimised reflector properties as well as an intelligent controller, which is yet to find its match in terms of efficiency, user-friendliness and environmental protection. These characteristics of energy efficient heaters form the basis for the deltaSchwank adapting to the special requirements of commercial buildings in the best way possible… or, as we call it: which gives us our Delta.

Your advantages:

  • Efficiency
    • 99,0% seasonal efficiency [Calculated according to Directive 2015/1188 of the European Commission on the deltaSchwank 320U]
    • 80,6% radiation factor
    • 96,3% thermal efficiency and thus up to 50% reduced exhaust gas losses [with respect to the calorific value Hi]
    • Average 72% lower auxiliary energy consumption
    • Full modulation as standard with these energy efficient heaters
  • User-friendliness
    • On-board diagnostic function for optimised maintenance & repair
    • Predictive maintenance = maximum system availability
    • ModBus-compatible
    • 15 years warranty [Applies in combination with the Premium GaraPlus package
    • Industry 4.0 ready
    • “Made in Germany” quality
  • Environment
    • 20% less CO2 and up to 55% lower NOx thanks to the patented bluTek burner with pneumatic gas/air mixture [Exhaust gas values vary according to the product type.]
    • Minimised switching cycles for a longer product service life for this most efficient heating solution


In this area you will find product brochures, technical information and press articles about deltaSchwank.
deltaSchwank – Brochure EN
0 file(s) 70 downloads
deltaSchwank, Tube heaters 12. February 2019
deltaSchwank – Efficiency values EN
1 file(s) 69 downloads
deltaSchwank, Tube heaters 12. February 2019
deltaschwank – Manual EN
0 file(s) 38 downloads
deltaSchwank 12. February 2019


The first system with our new high efficiency deltaSchwank tube heater has been successfully put into operation.

Our highly efficient deltaSchwank dark spotlight has convinced another jury. This time because of its special design.

The new deltaSchwank tube heater generation wins the renowned “Best of Industry Award 2017”. This makes the revolutionary heating solution one of the best products of the year.

Application reports


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