{"product_id":"stuart-504-spirit-gas-fired-boiler-stock-code-6406","title":"Stuart 504 spirit \u0026 gas-fired boiler","description":"\u003cp align=\"left\"\u003eA Stuart 504 boiler, largest of the 500 range, complete with  original twin leg spirit burner, although now equipped with a gas burner - a  much more civilised arrangement, allowing fine control of the flame. Problem  with the spirit burners is that the boiler quickly comes up to working pressure,  then sits with the safety valve blowing for half an hour while you're trying to  have a quiet run with a beam engine.\u003c\/p\u003e  \u003cp align=\"center\"\u003e\u003c\/p\u003e","brand":"Station Road Steam","offers":[{"title":"Default Title","offer_id":54020072571221,"sku":"6406","price":295.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1023\/0094\/2677\/files\/6406-1.webp?v=1779910444","url":"https:\/\/stationroadsteam.com\/products\/stuart-504-spirit-gas-fired-boiler-stock-code-6406","provider":"Station Road Steam","version":"1.0","type":"link"}