How to Make A Cool Rocket Stove For Free

By Arminius July 7, 2017 13:46

How to Make A Cool Rocket Stove For Free

Rocket stoves are easy to carry around as a small camp stove whenever you’re out. They are efficient and burn for a long time, so you need less fuel to keep the fire alive.

The log rocket stove has limited uses, but it’s the easiest and fasted to make.

First, we will need to get all the necessary items to make this:

  • A piece of log (the diameter of the wood will determine for how long you can reuse it)
  • A wax crayon
  • A drill with a flat wood drill bit, size 35
  • A stove grill or anything that is flat enough to sustain the pots (I will also use a piece of an old engine that I painted with heat-resistant spray paint.)
  • Heat-resistant spray paint (optional)materials for log rocket stove

Step One: Drilling Out the Inside of the Log

First, attach the drill bit to the drill and carve a hole on top of the log, drilling down as far as you can.drilling the log

After the hole has been drilled, measure its depth and then drill a hole on the side of the log according to the depth. Remember, the two holes should meet, forming an L shape.second hole in the log rocket stove

Step Two: Secure the stove grill

Based on the size of your stove’s burner grate, draw a circle onto the top of the log and hammer nails into the base, following the lines of the circle that were previously drawn. This will serve as our base for the grate.nailing the log

Place it onto the nails, and your first rocket stove is done. I tried it with engine parts that I found around my house from an old rusty engine. I just spray painted it with heat-resistant spray paint.finished log rocket stove 2

Related: 12 Woodworking Projects for Preppers and Homesteaders

Step Three: Trying It Out and Tips on How to Light It

Log rocket stoves work by lighting the inside of the log on fire. This is initially quite difficult, but once accomplished, it will give it a slow but long-lasting burn. Use something that burns fast and with big flames. Woods that make resin are perfect for this. Because of this, I used pine needles and stuffed them down both holes. Make sure that you leave enough space for the fire to breath.0 log stove rocket stove

After enough coals were collected in the middle of the log and it had a small but stable flame, I started adding small twigs and wood chips to the fire to help it burn even better.1 log stove rocket stove

After a while, the fire crept up the log and started burning better inside.

You can actually see how the inside is just covered in flames. The wood won’t heat up outside, so you can hold it and carry it, but I wouldn’t recommend this as you could disturb the fire and it could die down or you could burn yourself.2 log stove rocket stove

I put some water in a cup onto the fire to demonstrate that it actually works. A couple of minutes and the water was boiling.

With this stove, you can heat up a whole meal for a family, of course, that is, if you have enough time and patience. But if one is too slow, why not go bigger and use four at the same time?log stove rocket stove

With four of these, I was able to fry the bacon and the sausages faster than I actually thought I would be able to. They generate great amounts of heat and will burn for hours.

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By Arminius July 7, 2017 13:46
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  1. John July 7, 17:46

    Very clever. One should prepare several of these just in case electricity is not available when needed.

    Reply to this comment
  2. CCTer July 7, 18:44

    Interesting, but I’ll stick with my stove made from a #10 can and a couple soup cans. I wont have to try and extinguish a burning log when Im done cooking.

    Reply to this comment
  3. John July 7, 19:36

    nice photos and instructions to build the heating of so many more items. Nice website. Like to get started asap. Thank you.

    Reply to this comment
  4. left coast chuck July 7, 19:42

    If you cut your log so that it is double the length of your bit, then drill the hole from both directions, so that the top hole and the bottom hole connect and put the side hole at the bottom you will get a hotter flame as the draw is longer. This is a slightly different take on the Swedish torch/Canadian candle idea. If you use the Swedish torch principle where you make four cuts in the log you don’t have to have a top. You can put your pan or pot right on the top of the log. This will make a fire that will last all night. There are several u-tube videos showing how to make a Swedish torch.

    Reply to this comment
  5. Dave in Houston July 7, 20:08

    Bit extenders willl allow you to drill deeper holes. they come in different links and work great with 1/4″ drill shafts is your hole size is larger than the female end of the bit extender.

    Reply to this comment
    • left coast chuck July 8, 02:55

      You are right, Sir! I forgot all about bit extenders. Duhh!

      If you have a brace and auger bits, you can make holes even if the lights have gone out. I believe this idea has more uses than the Swedish torch.

      Reply to this comment
  6. Preacher July 7, 21:01

    So what is the wax crayon used for??? I read the article four [4] times and it says nothing about a wax crayon.

    Reply to this comment
  7. Moose July 8, 16:21

    Using concrete post hole forms called Sonatube you can easily make a much more permanent version of a rocket stove that should last for years.

    Reply to this comment
    • Lucy July 8, 17:09

      I don’t know, Moose. I once paid a guy to clean out my garage, which he understood to mean, “Burn everything.” I was gone for 4 hours and the 14′ X 14″ Sonotube was ashes when I returned. (Along with almost everything else.) He wasn’t stupid, but he was crazy.

      Reply to this comment
  8. Lucy July 8, 16:55

    Very clear instructions, thanks! It looks like it’s pretty smoky. Is a rocket stove intended only for outside?

    Reply to this comment
    • left coast chuck July 9, 03:28

      You sure wouldn’t use a rocket stove inside unless you happen to have a very old fashioned house with an indoor fireplace and a chimney that exits to the outside. Carbon monoxide kills efficiently and silently. The whole idea behind the rocket stove is that it is very efficient, burns fuel completely extracting all the btu’s contained in the fuel and because the combustion is so complete, it burns without much smoke when it gets going. I don’t think the Swedish torch falls into the rocket stove category. In my opinion, for whatever that is worth, it doesn’t allow sufficient air to enter the combustion chamber to allow for complete combustion. That’s why you see so much smoke in the pictures. The rocket stoves I have seen and the ones I own have more air vents to allow more oxygen to enter the combustion chamber. The Swedish torch was designed, I believe, to burn slowly so that one could have a fire all night without having to get up to add wood to the fire to keep it going. At night, except for the smell, smoke isn’t a problem. with a small fire, the light can be easily shielded. In any event, while a great many writers talk about the danger of the odor of smoke alerting B.G.s to your location, I think there will be so much fire around and so much smoke that a little more in the neighborhood won’t be noticeable. Obviously, if you are miles from anywhere and are all alone in the big outdoors with no fires for miles around, the smoke from your fire will can attract unwanted attention, but in an urban area with fires raging unchecked, a little campfire will go unnoticed.
      Now if you are frying bacon that a whole ‘nuther story. That will draw all kinds of folks to your campfire.

      Reply to this comment
  9. Lucy July 8, 20:23

    What is the preferred way to put out the fire when you’re done cooking?

    Reply to this comment
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