trying to find out if igniters are all the same or made by different people. friend has a us stove 5500m and the first igniter lasted 4 months,then they sent a new one and it only lasted 3 months. they tend to get hot then melt sideways. the people at us stove wont warrranty it again. they say all igniters are the same and its common for this to happen. they only want 38.00 plus shipping, but sounds like it will happen every year. my stove stove of another brand is 2 years old and its never bothered. any answers or can anyone tell me why these are only 38.00 when others are over 100.00 help