{"product_id":"1912-heinrici-hot-air-engine-stock-code-8389","title":"1912 Heinrici hot air engine","description":"An early twentieth century Heinrici hot air engine, one of the smaller engines they produced for a wide variety of applications before small, fractional horsepower electric motors took over in the 1920s.\u003cp\u003e\u003c\/p\u003e\u003cp\u003e    Believed to be of 1912 vintage, the engine is in good condition and runs beautifully - light the burners, leave it a minute or two, turn the flywheels once and it's off! Quiet in operation, \u003ca href=\"https:\/\/www.youtube.com\/watch?v=SO_JORlYu04\" target=\"_blank\"\u003ethere's some video of it running this afternoon here.\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e    A beautifully made machine, it's well-equipped with oilers to allow prolonged, unattended running. The displacer drive is elegant, the displacer rod concentric with the piston and passing through it, driven by a crank and lever from one flywheel.\u003c\/p\u003e\u003cp\u003e    The engine, on its cast iron stand, is mounted on a wooden base along with a water tank for cooling - circulation is by simple thermosyphon.\u003c\/p\u003e\u003cp\u003e    The twin jet burner runs well on butane - a cooler flame than propane which gives the hot cap an easier life.\u003c\/p\u003e\u003cp\u003e    Complete with two spiral bound volumes of \"Vintage Hot Air Engines\" by Gerd Maier, a pair of telephone directory-sized books bringing a whole new meaning to the word \"definitive\".\u003c\/p\u003e","brand":"Station Road Steam","offers":[{"title":"Default Title","offer_id":54020240343381,"sku":"8389","price":2450.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1023\/0094\/2677\/files\/8389-1.webp?v=1779912259","url":"https:\/\/stationroadsteam.com\/products\/1912-heinrici-hot-air-engine-stock-code-8389","provider":"Station Road Steam","version":"1.0","type":"link"}