I’ve been wanting to test out this 12v brushless fan for a couple different potential uses. These are normally used to cool high end PC gaming machines.
There are plenty of fans this size with higher RPM, but they consume a more power. I chose this one because it’s 3 watts and only draws 0.4 amps, while still providing sufficient RPM for my us cases.
I’m planning to use these to help circulate air in the crawlspace, near the woodstove, and in the loft. I’ve had it running all night and makes a HUGE difference in how the cabin is heated, even though I still have a lot of insulation and finish work to complete inside.
I am also going to install one of these in the exhaust area for my DC propane fridge to prevent it from overheating.
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Most everyone living offgrid relies on some sort of generator as a mission critical power generating device. I’ve purchased 2 generators and am using neither of them.
The 5500 watt Generac is a propane powered unit with several glaring design flaws. It’s damn near impossible to start in cold or warm weather and sucks down propane. It has less than 60 hours on it. I’ll sell it for half what I paid or best offer at this point.
The Honda EU2000 gas powered generator worked fine all summer but then stopped putting out AC power. I’ve done a fair amount of troubleshooting and think it’s the inverter board. I’m certain excessive moondust is to blame.
So here I am getting by perfectly with the custom 6.5 hp/212cc motor/alternator setup. Still blows me away every time I fire it up.
This is all I need to charge my batteries and power everything needed in the cabin. 3/4 gallon gas lasts 10-11 hours and will leave batteries fully topped off even during times of heavy use. That’s pretty damn impressive.
This includes my well pump and all 110v AC and DC appliances. Oh also — It only cost about $300 for all the parts. Compared to $800 for the General and $800 for the Honda.
Have a a smaller 3hp engine on order that a buddy is gonna setup. See if we can fine tune and run even more efficiently.
Today I’m looking to set up a separate solar power system and battery storage bank for my desk/office to more evenly distribute the load and keep is isolated from my primary battery bank which powers my mission critical 12v systems. I’m using a single 190 watt panel connected to a Morningstar 15 amp PVM charge controller connected to 2x Everstart Deep Cycle batteries I got at Walmart. The batteries are connected to a 400 watt AC inverter that I have connected to a power strip with the following devices plugged in:
- Laptop power cord
- Samsung micro USB charger
- Raspberry pi micro USB power
- Google Home
- 24″ Samsung LED display monitor
- Yaesu Ham radio charger
Will see if this works for my usage pattern and how much load it takes off my primary solar / battery setup.