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northwoodsman t1_j4mayt3 wrote

Reply to comment by nakrimu in How do non electric heat operated fans work? by ranman12953

I’ve owned eco fans for years. After 5-7 years I had replace the electric motor behind the blades , but that was pretty cheap and very simple. They are great fans, just pay attention to their intended use. I bought one that was meant for lower temperature and burned it out quickly on a wood stove.

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nakrimu t1_j4mdro9 wrote

Ahh, the 802 meant for gas stove would cause the module to crack if used on a wood stove. 800 is meant for wood stove. I agree they do a great job, I had one that lasted me about 8 yrs before I had to swap out the module and motor and it never stopped running.

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BiAsALongHorse t1_j4oud24 wrote

Is the difference just in the ceramic around the semiconductors or are the semiconductors different too?

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nakrimu t1_j4pjxqr wrote

I believe it’s just the ceramic that’s different but don’t know for certain as I just built them. The modules were pre-assembled.

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joanzen t1_j4mkuor wrote

Thanks! There's some that are built to run higher temps that work fine, but on a wood stove the temps vary too much for the average elements to work reliably.

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