Quad Marine
Twin Beam
Tandem Marine
Beam Single
Mill Single
Mill Twin
Tandem Twin Mill
Marine Single
Marine Twin
Quad Mill
Compound Twin
Inv V Twin
3 inch Horizontal Boiler
Horizontal Boiler 3.5inch
3 inch Horizontal Electric Boiler
Horizontal Boiler 5inch
Vertical Boiler 3.5inch
Horizontal Boiler 4inch
Chimney Condenser
Mill Single Package 2
Marine Single Package 1
Mill Single Package 2e
Marine Single Package 2
Mill Single Package 1
Beam Engine Package 2
Beam Engine Package 1
Mill Twin Package 1
Mill Twin Package 2
Marine Twin Package 1
Marine Twin Package 2
Duplex Mill Twin Package 2


Chiltern Model Steam provides a range of live steam model (miniature) steam engine kits, fully machined, that can be easily assembled into fine examples of the sort of engineering that powered the industrial revolution.

They are not toys as when assembled the engines are fully working and can be used, for example, standalone or to power a model boat. NOTE: Children under 16 should be under adult supervision when assembling or operating the engines.

The models can be run using live steam or simply using compressed air from foot or hand pumps.

We hope that customers, young and young at heart, will enjoy assembling the models and find it an educational experience.

See our Educational pages on the history of steam engines, how they work and how they are made.


"The beam engine... what can I say. It’s perfect.... thank you for creating such a wonderful, “affordable” model! I say affordable, because in the past, I’ve looked at the Stuart Beam engine, and without Lathes and mills etc to machine the rough casting, it’s out of reach of the novice engineer... until I met you and your products" - IanL on buying the Beam Engine

"WOW what a beautiful piece of engineering can’t wait to see it running." - RobJ on buying  Mill Single

"The mill engine arrived tonight, and I can only say BRILLIANT!! Im so pleased with the engine, and will look at it properly in daylight. Packaging superb, your service has been exemplary plus you are such a nice person to deal with. "Thanks" barely seems adequate, so a big THANK YOU!!!...., I will be back to order a twin mill engine :)" - StewartK on buying  Mill Single


A brilliant article written by one of our customers published in the Model Engineer Magazine.

From 1st January 2021 customers in the European Union will have to pay import duty/tax (VAT) on items purchased from UK. Chiltern Model Steam is not VAT registered so VAT cannot be claimed back.

See our new Steeple engine kit, Twin Beam Engine3inch Electric Model Steam Boiler3inch Model Steam Boiler, Fully Machined Kits.

In addition to our own engines and boiler please see Other engines for some excellent quality engines and boiler made by third parties. boiler.