Complex requirements solved innovatively

From East Westphalia to the world

Siekerkotte has been living electrical heating technology for over 30 years. Founded by Helmut Siekerkotte in Herford, Westphalia, the company has continuously developed its product range over the years. Today, it is one of the leading quality manufacturers of industrial electric heating technology with worldwide distribution.

Air heaters for the process and drying industry, oil and water heaters for mechanical and plant engineering or complete system solutions including adjustable thyristor control: Together with its customers, Siekerkotte develops individual heating solutions optimized for the process requirement and the used medium, up to the MW range. More than 30 years of experience with developing, engineering and producing of electric heating technology flows into this process. The mission statement of the company’s founder always remains at the forefront: Innovative solutions in outstanding quality!

Customer orientation and excitement

Fulfilling the requirements of our customers regarding electric heating technology is a daily motivation for the Siekerkotte team. Implementing solutions even under complicated framework conditions is both an incentive and a need for us. We want to offer you the best possible solution at a reasonable price.

Quality, professionalism and clarity

Our promise to our customers is the following: We are not satisfied until you are. Our customers can expect our offers to not leave any questions unanswered; you understand what you are getting. Rest assured that our heaters are designed to the best engineering standards and produced to the highest specifications.

Partnership and agility

Siekerkotte’s main objective is to build a long-term business relationship with its customers. To achieve this, we respond promptly to changing market needs and face up to the new requirements of our customers, the political framework conditions and technical developments on a daily basis. We contribute together to the decarbonization of the heating sector and thus to achieving the targets of the Paris Agreement.

Our history



Our company was founded by Helmut Siekerkotte in Hiddenhausen near Herford in Germany.

Production expansion

Expansion of production by renting another production hall.

Further development

Expansion of the product range through the development of air heaters, drum heaters and heating cabinets.

DIN ISO 9001

Certification of the company according to DIN ISO 9001

CSA/UL certification

CSA/UL certification for 1 1/2" screw-in heaters.

Further development

Development of cartridge heaters for heating water with a higher level of hardness.

DIN EN ISO 3834-3

Certification of the company according to DIN EN ISO 3834-3 (EN 729-3)

Continuation of the family business

Helmut Siekerkotte retires. Dr. Sarah Schniewindt takes over the company as sole shareholder. Wöltje Dunkake is appointed as Managing Director.

ICE department

Establishment of an in-house ICE department and thus expansion of in-house expertise for complete heating solutions.

Power-to-heat plant to Munich

Siekerkotte delivers the first power-to-heat plant with 2MW capacity to a soccer arena in Munich.

Further development/introduction

Introduction of fast delivery standard electric screw-in heaters.

30 years anniversary

30 years of Siekerkotte with a total delivered electrical heating capacity of more than 3 gigawatts!

First hybrid heating supplied

Siekerkotte supplies the first hybrid heating system for existing buildings with 7.8MW capacity for a German municipal utility.

Let’s talk about it!

No electric heating solution is exactly like the other! Let us advise you on what your optimal heating solution looks like.
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