Click here to Find a Contractor in your area.
Welcome! Here are the website rules, as well as some tips for using this forum.

If you've found help here, check back in to let us know how everything worked out.
It's a great way to thank those who helped you.
Need to contact us? Visit

Silicon Nitride Hot Surface Ignitor

RapidRoyRapidRoy Member Posts: 4
When the silicon nitride hot surface igniter came out, it seemed to be the way to assure customers that they could rest easy knowing that the ignitor was very durable and trouble-free. One of my former coworkers has informed me that they are experiencing a number of these ignitors failing. Is anyone else noticing the same?


  • Tim McElwainTim McElwain Member Posts: 4,362
    I have not heard of any

    problems, in fact I believe one of the posters here a while back reported very good results with the White-Rodgers Silicon Nitride retrofit kit the 21D64-2. This allows you to replace the old silicon carbide units with a silicon nitride upgrade on selected furnaces and boilers.
  • Glenn Harrison_2Glenn Harrison_2 Member Posts: 845
    I have seen

    very few failures of the OEM Nitide ignitors, ( we all know there will be a few that will fail).

    However, I talked my current employer last winter into trying the White Rodgers 21D64-2 Universal igniters, as I had used them several times during the 2007-2008 winter. We were having problems with quite a few of them failing on some 80% furnaces, Carrier and Rheem to be specific. The worst part is they would only last about 2 weeks and burn out, We wound up giving up on them. I know we sent them all back for warratny, but who knows what the suppliers did with them.

    Honeywell just releases a universal Nitride ignitor called the Glowfly. We are going to try these and see what happens.
  • Tim McElwainTim McElwain Member Posts: 4,362
    After reading Glenn's post

    I made two phone calls to two different companies who have used the White-Rodgers upgrade and they told me they collectively have only had problems with three of them and in all cases it was on Carrier units. Other than that they have been fine. Who knows?
This discussion has been closed.


It looks like you're new here. If you want to get involved, click one of these buttons!