Super Heat Double Burner Gas Boiling Ring – Outdoor LPG Burner with Fully Adjustable Gas Valves Get performance and style with the Super Heat Double Burner Gas Boiling Ring - 2 x 3.5kW. Built for function and durability, this compact boiling ring has two high output cast iron burners, precision fully adjustable gas valves 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 – 2 x 3.5kW enameled cast iron burners for fast and even heat. Brass Valve– Brass gas valves with large control knobs for precise flame adjustme