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It's great to hear that recirc is possible without having to use an industrial high temp blower.

I think you are providing valuable research for all of us who want to be able to roast more than a 1/4 lb batch (in a fluidbed) with household 120 volts. I'm hoping many more at HRO will be trying their hand with a recirculating fluidbed build and who knows, with enough folks in the mix there might be further breakthroughs allowing simplified designs.

Keep the posts coming

Allen