Passion starts here!

Find the right hot oil heater

Passion starts here!

Find the right hot oil heater

Passion for heat transfer

At heat 11, we care passionately about the heat transfer. Around the industrial process heat you get a high performance package from one single source: Planning, engineering, manufacture, assembly, commissioning and after-sales service. Our thermal oil plants, thermal oil boilers (thermal oil heaters) and waste heat boilers solve each heating task. Check it out for yourself. What can we do for you?


From thermo oil boilers to pumps – all about our products and services.

Plant Optimization

Production up, costs down – with efficiency solutions by heat 11.


In every industry: the right temperature at the right time in the right place.


All-inclusive: After-Sales and Retrofit-Service after commissioning.


Why thermal oil? Learn more about the advantages of Thermal Oil Systems.

Plant Engineering

From concept to operation – Turnkey solutions.

Our solutions – in use in your company

In the past 15 years the team of heat 11 has carried out successfully many projects. From components via complete solutions to turn-key plants. In Germany, Europe and around the world. Thereby we focus on quality, deadlines and costs in all stages of a project to meet the increasing demands of our customers. Convince yourself of our efficiency with project examples. Challenge us and our passion for heat transfer!

Where we are

heat 11 GmbH & Co. KG
Otto-Brenner-Straße 203
33604 Bielefeld

Tel +49 (0) 521 989 110-0
Fax +49 (0) 521 989 110-60

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Alle Adressen

Why to choose heat 11

Low operating costs

Our plants stand for low operating costs, best environmental standards and highest profitability.

Best advice

heat 11 has the best specialists for a competent, binding advice and the effective solution for your task.

Professional handling

More than 100 years of experience with the highest process standards ensure the highest possible safety in handling.

High product quality

To ensure a constant high product quality we only work with the best in engineering, manufacture and assembly.

Excellent cost/performance ratio

Extensive support from the approval up to the commissioning ensures an excellent cost/performance ratio.

24/7 Service

Prompt spare parts supply and availability of our service technicians – 24 hours a day / 7 days a week.

heat 11 worldwide



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