About us

About us

Read about how the idea of the Böhm-Stirling motor came about and how the product palette slowly grew.




We explain how a small flame manages to propel a piston.


Construction kits

Construction kits

Building your own Böhm-Stirling motor is great fun! Try it out.


ROLL-1 - Marble Machine

HB4 Viking-Ship

The high-quality marble machine with its 8 constantly moving marbles evokes universal amazement!

Stirling since 1990
The most popular engines  |   All engines

Loco The Rocket L1


Sportscar AS4


Loco The Rocket L1

Put yourself back in the early years of railway history.


The HB5 is best suited for external drives, like the ROLL1 Steampunk Marble Machine

HB24   Classik Smoking

A vacuum motor that transports you back to the eighteenth century.

The Stirling Car AS4

The Sportscar A4 is a tribute to the very first well-Mercedes

HB31   Small Tattoo

An eye-catcher with interesting adornments and a hint of exoticism

Stirling since 1990

Böhm Stirling-Technik - Beitrag der Deutschen Welle 
Report from "
Frankenschau" 03/26/2017

Company portrait from Böhm Stirling-Technik GmbH

BR Television from 03/26/2017, 5:45 pm,(© br.de 2017)

Böhm Stirling-Technik - Report from DW (Deutsche Welle) 
Report from "Deutsche Welle"  01/14/2014

Toys for Big Boys - Model Cars and Trains with Stirling Engines

Today more and more technology is becoming invisible, and we can only see how things works through computer graphics. Hermann Böhm had the idea of showing us what they're missing. In his model cars and trains, you can see the parts moving. (© dw.de 2014)

Stirling since 1990

The History of the Stirling Engine

The first Stirling engine was developed by the Scottish Reverend Robert Stirling in 1816.
Robert Stirling wanted to create a safe alternative to the high pressure steam engines which were spreading in those days.
High pressure steam engines caused dangerous boiler explosions which often severely injured persons and even caused deaths.
Robert Stirling’s idea was to build an engine that didn’t need high pressures to work, so that the risk of explosions was reduced.
Not only the safety played a significant role in the development of the Stirling engine; the fact that the fuel consumption of stirling engines was lower than that of steam engines was important, as well. The first Stirling engine was used in 1818 to run a water pump in a mine.
Towards the end of the 19th century the Stirling engine was used as a source of energy in private houses. At the end of the 20th century approximately a quarter million hot air engines were used all around the world as energy sources for fans or small appliances like sewing machines.
In the 1930s the Dutch company Philips developed the Stirling engine further so that it could function as an easy to handle and portable power source for radios.  In this connection the Philips Stirling engine was developed and contained various reforms compared to the previous model.
After the further development stopped during World War II the engine was rediscovered in the middle of the 20th century by various industrial enterprises that tried to use the Stirling engine as a drive for ships and cars.
On account of the fact that the engine worked on many different fuel types the military thought about using it, too, but there never was a competitive invention.
In the mid-70s the Stirling engine gained importance concerning the combined heat and power scheme and block-type thermal power stations.
Especially in the production of very low temperatures the Stirling engines are often used as low-temperature Stirling cooling machines. Furthermore they are also used as solar thermal applications.

Stirling engines run on external heat and therefore gained importance in the search for alternative energy sources. In the 1980s Professor I. Kolin (University of Zagreb) and Professor J. Senft (University of Wisconsin) managed to develop a vacuum engines that could run on temperatures of 20°C and lower.

Our model engines and stirling engine kits are inspired by those ideas and impressively show the transformation of heat into kinetic energy.