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I did previously because the motor had to be cranked to start. Now the fan shaft seems to oscillate no matter how I tighten it down

I read an article today saying there are milky way stars half way towards andromeda

Generators that are fueled by the kerosene they make from pine sap on forests that they control, right? They don’t just buy gas/diesel from the corner store who buys it from the refinery that makes it from grid-connected power, right?

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Most wood stove fans rely on something called the Seebeck effect. The Seebeck effect is the inverse to the Peltier effect, and the two are often discussed in tandem.

In lay terms you can draw a small amount of voltage from the movement of heat. On a woodstove this is accomplished by having a large surface area in contact with the metal of the wood stove. The top of the stove fan is usually thinner, with fins or a grid to assist in drawing up and radiating the heat away from the surface of the stove. In the middle of this temperature gradient is a wafer of material with wires inside of it, known as a thermocouple. As the heat is conducted from the stove and up the stove fan the heat gradient produces a small amount of electricity that is captured in the thermocouple and transferred to a small motor that powers the fan blades.

The process is wildly inefficient for most other practical applications, however for something like a woodstove the intent is to direct some of the radiant heat forward via convection. Any loss in efficiency is in the form of radiant heat, so it's not a loss in the sense that the stove is still heating/warming a given area.

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Some use electric power tools as well, as you said they mainly care about being off grid so they run generators when they need electricity.

Yeah, you'd have to wait like 200 million years for any valuable parallax data from the Sun's orbit around the galaxy.

What is tricky about the manufacturing exactly?

That honestly sounds more like a motor issue. I would contact Caframo since you haven’t had it long.

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.

Any tips on reducing fan noise? I've had one for about 5 months and it produces an audible sound now when it spins. Was debating using w40 or some other lubricant to grease the propeller shaft.

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Very interesting, thanks for explaining!

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omg thankss sm

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Caframo Eco-Fan 800, the first ever patented wood stove fan or the Eco-Fan 802 meant for gas stoves. They have high quality standards for building them and stand by their products.

When I worked at GameStop a decade ago, the Amish were the ONLY people buying PSP games/movies. It was and still is fascinating to me

I bought one out of idle curiosity a few years ago. I don't think they make any difference - they don't pull enough air through.

Solar power. Use parabolic mirrors, track the sun, heat up the Stirling engine. The prototypes worked, and worked well. Better than photovoltaic cells.

The trick is manufacturing the Stirling engines, which.... is not easy.

They will look at a star when the earth is on one side of the sun, then look at the same star when the earth is on the other side of the sun, 6 months later. The change in position is about 180 million miles. How the position of the star has changed in that 6 months gives them enough information to calculate how far away the star is.