These igniters are made from a very high grade of stainless steel that will withstand temperatures
exceeding 1200°F. Many Pellet Stove igniters are only made from a less
costly Grade 304 or Grade 316 stainless (Google them), which both have a much lower temperature threshold than Incoloy.
JUST SO YOU ARE INFORMED, HARMAN OEM IGNITERS ARE 306 WATTS & ONLY COME WITH A 90 DAYS STANDARD FACTORY WARRANTY.