Super Heat 3.5kW Gas Boiling Ring – Outdoor LPG Burner with Fully Adjustable Gas Valve Get performance and style with the Super Heat 3.5kW Gas Boiling Ring. Built for function and durability, this compact boiling ring has a high output cast iron burner, precision fully adjustable gas valve and stainless steel control panel. Whether you’re camping, at a food stall or in your back garden barbecue, this LPG burner has the power and control you need, with an enameled cast iron finish that can withstand the elements. Features High Output – 3.5kW enameled cast iron burner for fast and even heat. Brass Valve – Brass gas valve with large control knob for precise flame adjustment. Stainless Steel Pan