So after 13 years of steady service our trusty EcoFan started slowing down badly. Someone mentioned the Vorhaus fan listed on Amazon for $40 so I figured I'd give it a try. The fan is smaller than the large size EcoFan that we have. The EcoFan blade is 8" diameter and the Vorhaus is a diminutive 5.75".
Lit the stove today as it looks like we are in for a chilly spell. The fan started right up when place on the trivet of the stove with stove top at 675ºF. I put my hand in front of it and felt nothing, so I got out an incense stick to test air flow. Oh oh, the fan was running backward. Instead of blowing it was sucking, and poorly. A look on the backside revealed the problem. Wire connections are reversed with the negative from the TEG connected to the positive on the motor. Mulling it over now whether to return to Amazon or to reverse wiring and put the EcoFan blade on it.
Lit the stove today as it looks like we are in for a chilly spell. The fan started right up when place on the trivet of the stove with stove top at 675ºF. I put my hand in front of it and felt nothing, so I got out an incense stick to test air flow. Oh oh, the fan was running backward. Instead of blowing it was sucking, and poorly. A look on the backside revealed the problem. Wire connections are reversed with the negative from the TEG connected to the positive on the motor. Mulling it over now whether to return to Amazon or to reverse wiring and put the EcoFan blade on it.
