It takes the best engineers and craftsman to make the best stoves and we’ve got them. Your new Lopi stove is guaranteed to have durable door hinges made of cold rolled steel, punched through the firebox and welded on the inside to hold the door permanently straight. The hinge pins are 20mm rivets. Your stove also has a 150mm, seamless, heavy duty steel cover and heavy gauge steel construction. When you buy a Lopi, you are buying the finest. WE GUARANTEE IT.