I've seen them, don't know what they are called, but they are manual without electricity, where you rotate/crank them to exchange air. Can someone pinpoint exactly what these are called for me?
I found that many of the old shelters used a crank forge blower, I don't know who still sells them.Great find, now I'm wondering about the $50K price tag on the complete set unless they sell the VA150 in a standalone configuration. I'm going to look around to see if there is just a manual one without all the batteries, blast proof, emp protection etc. Just a old 1980's version that someone might have for sale. Thanks for finding this.
This was exactly what I was looking for. Spot on! Thank you!I found that many of the old shelters used a crank forge blower, I don't know who still sells them.
FORGE BLOWER MODEL NO 400 ~ Hand Crank ~ Champion ? on eBay!
@SurvivalI've seen them, don't know what they are called, but they are manual without electricity, where you rotate/crank them to exchange air. Can someone pinpoint exactly what these are called for me?
That's actually not the one you want to go with if you are talking about intake vents. That one can be easily popped off and smoke throw down the pipe in an effort to smoke you out.
Best if it's belt drive because then the fan has its own mounting and bearings, you'd just need to divise a drive pulley. Belt drives are harder to find these days, back in the mid to late 1990s when I was doing HVAC we replaced quite a few furnaces/air handlers that were belt drive, can't recall the last one I saw, but since you don't need a motor that's helpful, make sure you tell them blown motor is OKAY.If you just want to move a lot of air in a small amount of time,
you can easily make an air handler from an old, used HVAC fan.
You can find them easily, if you are polite, at almost any
The physics of operation are very simple, and with a tiny
amount of your ingenuity, you can adapt it to your need.
You can even incorporate filtration.
You can power it by hand, by bicycle,.....
These 'squirrel-cage' fans move lots of air, even the small ones.