[deleted] t1_j4ow6tn wrote on January 17, 2023 at 5:43 AM

The Amish people who built the home next door to my in-laws in Iowa were able to use power tools as long as they were pneumatic. Didn't write make sense to me, but whatever. They also had a non Amish guy drive them to and from the work site in a van.

bigflamingtaco t1_j4oltp7 wrote on January 17, 2023 at 4:10 AM

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

How is free fan operation less cost effective than paying for electricity?

I don't think many are expecting tec fans to blast air across the room. Anyone that knows anything about peltier knows you don't get a tremendous amount of power out of them for the same reason they consume a lot of power to cool anything.

Mounting one to my Big Buddy heater is a heck of a lot cheaper than supplying the internal fan with D-Cells, which can't even make it through a single weekend of camping.

[deleted] t1_j4okgna wrote on January 17, 2023 at 3:59 AM

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

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I_love_hate_reddit t1_j4oirj0 wrote on January 17, 2023 at 3:47 AM

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

That's also how motorhome refrigerators are kept cool with nothing but a gas flame from the propane tank

[deleted] t1_j4ohtz2 wrote on January 17, 2023 at 3:40 AM

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

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[deleted] t1_j4ogtzm wrote on January 17, 2023 at 3:33 AM

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cara27hhh t1_j4oex7f wrote on January 17, 2023 at 3:19 AM

Reply to comment by 55_peters in How do non electric heat operated fans work? by ranman12953

fans are weird, the propeller design and material makes a lot of difference and so you can get some that claim to be the same wattage, measure at the same wattage, but that move different amounts of air

I imagine it only gets more complicated when you're trying to combine that with an unknown amount of power generated from an odd method

[deleted] t1_j4ocpuw wrote on January 17, 2023 at 3:04 AM

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

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[deleted] t1_j4o8sow wrote on January 17, 2023 at 2:36 AM

Reply to comment by gh0stwriter88 in How do non electric heat operated fans work? by ranman12953

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[deleted] t1_j4o7cxa wrote on January 17, 2023 at 2:26 AM

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

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dinominant t1_j4o6pb8 wrote on January 17, 2023 at 2:22 AM

Reply to comment by zebediah49 in How do non electric heat operated fans work? by ranman12953

Thanks for sharing this. I'm surprised the hot side is only 82°C. Not even hot enough to boil water. However the fan is actively cooling the fireplace, so that does explain why it isn't over 100°C.

the_non-binary_child t1_j4o52d8 wrote on January 17, 2023 at 2:10 AM

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

Thermoelectric energy. Heat travels up from the base of the fan to heat a Peltier device installed underneath the fan's blades. When the device is heated, it causes thermoelectric energy which works to turn the blades and circulate the warm air around the room.

pm_me_good_usernames t1_j4o4etp wrote on January 17, 2023 at 2:06 AM

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

The Amish broke off from the Mennonites around 1700. They're related, but I don't think either is a subset of the other.

[deleted] t1_j4o3hiy wrote on January 17, 2023 at 1:59 AM

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