{"product_id":"stuart-504-boiler-stock-code-12077","title":"New Stuart 504 boiler with manufacturer's documentation","description":"A Stuart 504 gas-fired boiler, supplied new in 2019 and apparently unused, complete with manufacturer's documentation.\u003cp\u003e\u003c\/p\u003e\u003cp\u003e    Largest of the popular 500 series boilers, Stuart began manufacturing these again in recent times (although not the smaller 500 or 501). The well-proven design remains largely unchanged - the boilers are just as nicely built as the older type although now with modern, non-toxic firebox insulation in place of the asbestos boards previously used.\u003c\/p\u003e\u003cp\u003e    The original boilers were spirit-fired; the latest type feature a ceramic burner jetted to burn a 70:30 butane\/propane mix - it provides a clean, quiet and controllable heat source, enabling engines to be run at a tickover if required without the safety valve lifting constantly.\u003c\/p\u003e\u003cp\u003e    \u003ca href=\"https:\/\/www.stuartmodels.com\/product\/stuart-504-boiler\/\" target=\"_blank\"\u003eThere is further information about the 504 boiler on the Stuart Models website.\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e    Includes free UK shipping.\u003c\/p\u003e","brand":"Station Road Steam","offers":[{"title":"Default Title","offer_id":54019712221525,"sku":"12077","price":695.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1023\/0094\/2677\/files\/12077-1.webp?v=1779906393","url":"https:\/\/stationroadsteam.com\/products\/stuart-504-boiler-stock-code-12077","provider":"Station Road Steam","version":"1.0","type":"link"}