{"product_id":"wacker-neuson-flue-box-assembly-5000173921-for-hydronic-air-heaters","title":"Wacker Neuson Flue Box Assembly 5000173921 for Hydronic Air Heaters","description":"\u003cp\u003eThis is the flue box assembly (BOX-FLUE ASSY FD648 FR462, part number 5000173921), located within the hydronic heater complete assembly on compatible Wacker Neuson hydronic air and surface heaters. The flue box houses the burner tubes and turbulators that channel combustion exhaust heat through the heat exchanger, and it operates under sustained thermal stress during normal heater operation.\u003c\/p\u003e\n\n\u003cp\u003eAccording to the E 5000 operator's manual, a temperature indication label on the flue box marks maximum recommended operating temperatures at specific locations, with a rated ceiling of 149 degrees C (300 degrees F). Exceeding this threshold indicates a condition requiring inspection. The HP 252 service manual details maintenance procedures directly tied to this assembly: the flue box door is secured by nuts and must be opened to access turbulators housed in the burner tubes. During service, the door panel insulation must be inspected for damage, and any damaged panels must be replaced. Turbulators are removed by pulling the turbulator tab, and burner tubes are cleaned with a bottle brush. Replacing this assembly restores the structural integrity of the flue box enclosure where these procedures take place.\u003c\/p\u003e\n\n\u003cp\u003eCompatible with the following Wacker Neuson models:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eE 5000 \/ E5000\u003c\/li\u003e\n\u003cli\u003eHP 252\u003c\/li\u003e\n\u003cli\u003ePureheat\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eGenuine Wacker Neuson OEM part, sold by an authorized dealer.\u003c\/p\u003e","brand":"Wacker Neuson","offers":[{"title":"Default Title","offer_id":43397493719088,"sku":"WACKER-5000173921","price":1657.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0679\/6574\/7248\/files\/5000173921.jpg?v=1784037240","url":"https:\/\/cce-industries.com\/products\/wacker-neuson-flue-box-assembly-5000173921-for-hydronic-air-heaters","provider":"CCE Industries","version":"1.0","type":"link"}