Comments on: Preparation: Fuel and Energy

By: Oak Norton

Oak Norton — Mon, 11 Apr 2011 04:24:00 +0000

In reply to Deltameta2. Actually Oak burns slow because it's so dense. :)

By: Deltameta2

Deltameta2 — Mon, 11 Apr 2011 04:06:00 +0000

Oak, Does burning Oak cook faster? Sorry about that.
Re Solar Power: Harbor Freight Tools has some nice Solar Panels. On Sale with coupon for $150. regular $225. they mail out coupons in places like Readers Digest mag. etc.
https://www.harborfreight.com/45-watt-solar-panel-kit-90599.html
These are 45 watts. Have 3 panels about 30″ by 16′ approx. I tested them on a “dark” snowy day and they put out power. They have a nice controller box that can put out 3 Volts, 6 volts and 12 Volts. also includes 2 12V fluorescent lamps. I ran system into a 12v car battery that was really low. Couldn’t charge it. I brought it up to reasonable charge with a plug in charger 10 amps for an hour plus. then the HF system worked well. So as long as car batt isnt too dead HF works. has auto detect alarm to tell u when batt charged. These so good I bought 4 HF sets. I can transmit all over world on my Ham Radio off 12 V car batt. Gary N7JZN. Ham class taught every month by NV7V@ucares.org is a free 1 day class, no morse code no electronics needed.
Solar panels this size usually run $500 to $1000. they do have somewhat higher efficiency per square foot, but not worth it.

By: Oak Norton

Oak Norton — Fri, 08 Apr 2011 19:26:00 +0000

That’s the one Dave mentioned above at Parleys. See my comments there to understand the difference from it and the one I mentioned.

By: Oak Norton

Oak Norton — Fri, 08 Apr 2011 19:25:00 +0000

In reply to Dave Duncan. Thanks for posting this Dave. You gave me some immediate buyers remorse. :) I decided to call both companies and now understand the differences. The one I got has 2 steel cylinders with perlite insulation in-between them to keep the heat on the inside cylinder very efficient. The one you linked to has an inner ceramic layer, and then the outer shell is steel. If you drop it, you risk breaking the ceramic layer and ruining the stove. Parleys will start to carry a new model in about a month that has the dual metal cylinders and their price will be $129 (which if you have to pay for shipping on top of that makes it more expensive than the one above which has free S&H). Now that I have mine I am glad I paid the extra for the quality. It's very rugged and the handles are welded on instead of being floating handles like on this one you linked to.

By: twinmom

twinmom — Fri, 08 Apr 2011 14:33:00 +0000

I love my Sun Oven! I use it in the summer to do my baking so my house doesn’t get so hot! I’ve been able to cook anything in it that I can in my regular oven. It works great in the winter too, I just don’t use it in the winter as often because I like my inside oven heat then! Locally Bee Provident Supplies has been selling them (where I got mine) and they’re hoping to do a sale in May because the owner of the Global Sun Ovens is coming to Utah. Might be worth looking into.

By: Anonymous

Anonymous — Thu, 07 Apr 2011 21:42:00 +0000

The stove tech video is a little pc, but I think the stove is a great idea. It uses small amounts of fuel, so you don’t have to store as much. They are creating these stoves to reduce climate change issues. They produce them in China, so I guess the carbon foot-print of the factory doesn’t affect climate change. ;)

By: Sharon Anderson

Sharon Anderson — Thu, 07 Apr 2011 18:56:00 +0000

Be careful about using charcoal indoors. It must be well ventilated and should not be considered a heating fuel. Orem Costco has Goal 0 products (or did the last couple of weeks-not a permanent item there but the outlet is in Draper– Emergency essentials also carries them.) You can charge a battery with a relatively small solar panel and you can have light continuously using their low watt lamps (even run your lap top for a few hours, recharge cell phones etc.)

By: Dave Duncan

Dave Duncan — Thu, 07 Apr 2011 16:44:00 +0000

Also, Parley’s Hardware in Orem, has Rocket Stoves for $60-70.
https://www.parleyshardware.com/freerocketstove.html

By: Dave Duncan

Dave Duncan — Thu, 07 Apr 2011 16:39:00 +0000

I tested my solar oven a year or two ago when I bought it. Even from 9-11 in the morning I was able to boil a medium pan of water (a quart or more) in a few hours. I was impressed.

As for solar batter chargers, I was similarly unimpressed. However, I did buy a solar powered battery pack/inverter/power-station. While most solar battery chargers have panels in the few-hundred-milliwatt range, this one has a 5W (5000 milliwatt) panel, and is a little more practical. I got it for much less than the $299 it’s currently on sale for at Amazon, but that’s the only price I see right now. Consider something similar.
https://www.amazon.com/Xantrex-Technologies-852-2071-Powerpack-Inverter/dp/B000SECKO2

That unit is nice and compact and portable. Plus it has regular 110v and USB outlets for charging or power anything you might have. I suspect it would be possible to hook it up to a large, high-efficiency panel for more practical recharging. With the 5 Watt panel, some simple math will tell you that to charge an 80 Watt laptop for an hour, you are going to have to expose the 5 Watt panel to good sunlight for more than 16 hours. That’s probably only a few hours of use per week, unless hooked up to a larger panel.

Keep in mind, that most electronics, including the diode that many solar panels have, will not survive a large EMP, unless shielded in a Faraday Cage. There are lost of instructions on the web for how to make Faraday Cages of various sizes.