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– Practical Survivalist Team.
- DIY Video : How to heat your garage the Inexpensive way by building an Outdoor Stove with Heat ExchangerThis project goes over the build of an inexpensive garage heater using DIY outdoor barrel stove with a heat exchanger. This outdoor setup is safe because you dont want the stove inside the garage to catch fire if you are working with any flammable gas. We use a 30 gallon drum for the stove. The access doors and legs are purchased from the local store. The heater exchanger is made out of four inch steel pipe .We take couple of 4 foot pipe and weld them together using another small pipe. This pipe goes inside the firebox and connects to the chimney pipes. The pipe should be thick enough that it can withstand the heat of the fire without sagging or bending. This pipe heat exchanger adds positive pressure . Removable hatches are made on one side of the stoves to connect the 2 four inch aluminum flex chimney pipes from the outside barrel to the garage. Inside the garage we place a 4 inch exhaust fan blower that sucks the colder air from the floor and blows it through one of the flex chimney pipe into the stove. The blower is actually a hydroponics duct exhaust fan purchased from Ebay. The cold air gets pushed into the stove and moves through the heat exchanger steel pipe , gets heated and then moves out through the second chimney flex pipe and back into the garage. The hot air from the stove moves into the garage through the second pipe. In order to get more hot air, we also add a drip fed waste oil system to the outdoor stove . The oil gets dripped slowly from a tank into a frying pan on top of the stove .You can add cotton rags and let it drip into there and it just keeps burning like a wick. The combination of both wood and waste oil produce better fire . If the stove gets too hot, you can turn of the oil or use oil only to maintaining the temperature. You can put an insulated shack around the stove to minimize the heat loss. https://www.youtube.com/watch?v=fn4CerxpNug
- How to build a Homemade Archimedes Screw Turbine using PVC parts to generate Off the grid Power from a flowing river or stream/creekThis project goes over the build of an Archimedes Turbine that can generate off the grid power from a flowing river or creek. This is basically a screw that turns when water passes through the pipe. You need a 5 foot farming auger to build this. The farming auger is put inside of a 6 inch pipe and placed in the creek at a certain angle, water would pour into the auger and that water would weigh down that auger and turn it. And so as it turned, it would turn a shaft that is attached to the end of the pipe and run a pulley system with a motor to generate electricity. We take an old belt sander and shave some of the edges to make it smooth and rotate without any friction inside the pipe. We use an angle grinder to split the pipe down the middle and use the separator nuts to kind of give more space in the pipe. Make sure you don't split the pipe into two. Open up enough space on the top by heating the PVC and clamp 2 spacer boards on either side and stretch the opening by using a C clamp. 2 three quarter inch boards are bolted using carriage bolts on either side of the pipe which gives us enough room here to get the auger installed. Allthreads of size eight and quarter inches are put through the boards and secured in place with the help of some washers and non locking nuts. https://www.youtube.com/watch?v=GTD5Y7EyK00 https://www.youtube.com/watch?v=GTD5Y7EyK00 https://www.youtube.com/watch?v=jwIfrIgVqZc https://www.youtube.com/watch?v=veb6xTz7Vhg https://www.youtube.com/watch?v=Ul76_kG0xyI https://www.youtube.com/watch?v=v4I9Zfp62F8 https://www.youtube.com/watch?v=Oqt38fbsQaA
- How to build a Super Efficient Portable Rocket Mass Heater from reclaimed and repurposed items and save up to 80% on your heating billsThis project goes over the build of a homemade efficient rocket mass heater which is portable ,uses less fuel and burns clean. This heater is made out of reclaimed and repurposed materials. The cool thing about a rocket mass heater is that it stays warm long long after the fire is out. The whole thing is powered by a rocket stove, which is a j shaped burn chamber. Fuel goes in the short side of the J, the fire burned sideways and the bottom of it. And then the draw is created by a tall vertical heat riser. The gases then come out of that chimney go all around the inside of the barrel, a lot of the heat is given off into the room right off of the barrel. That's your radiant heat source for the room. The barrel acts as that radiant heat source. The gases then go through a valve in the barrel down below and through a series of tubes that are encased in mass such as aircrete or cob .The gases are able to shed the heat into the cob. And the cob stores it as a thermal battery. The gases make its rounds through the tubes and goes out through the exhaust pipe. The rocket mass heater shown here is made of a burn chamber, heat riser, bench for containing the tubes , the exhaust pipe and an insulation refractory material like aircrete which is a high temperature cement mix. The burn chamber is made from an old sheet metal pressure tank and a stainless steel water heater tank. The pressure tank insulated with aerated concrete sits inside the water heater tank. The combustion or gasification chamber is connected to the heat riser chimney through a three inch pipe insulated inside a six inch pipe. This pipe is also insulated with a refractory mix. The vortex chamber is connected to this pipe. The vortex chamber is made from a saw blade and a left over piece of pressure tank material . It is insulated with the refractory material . Six glue stick 3/8th inch air holes are drilled at right angles around this refractory material that creates a vortex extra air suction effect .So as that heat comes up and creates a negative pressure up the riser, it swirls around the vortex chamber and enhances the burn. The initial combustion creates enough heat to release way more gases than it has oxygen to burn. By introducing a vortex air intake system, the burn output is amplified. For making the insulated heat riser, we are going to use an aerated concrete refractory material called aircrete . We make the mould for the four inch heater riser using a metal mesh fabric, sarnafil roofing material and a thin gauge wire. Then it is filled it clay sand up to to the top . We take this mould and put it inside the six inch stove pipe and pour aircete through the sides all the way up to the top and let them sit to cure. We pull the sand out of the center of the heat riser. And then eject the liner that went against the inner fabric webbing that acted as a mold for the aircrete. The Aircrete heat riser is installed on top of the vortex chamber .The heat riser is double insulated with a old water tank and an old 55 gal oil barrel. Also the water tank is insulated from the 55 gal barrel using some pea gravel .The insulated water tank has an outlet pipe at the bottom for extension into the mass bench . The exhaust pipe coming out the insulated heat riser has a two foot drop to a directional valve connecting two pipes ,one pipe acts as a flue chimney that goes out into the outdoors through the window, the other goes into the mass bench. The valve allows us to redirect the air to pass to the bench once the heat riser is all warm. The eight foot long wooden mass bench houses the six inch stove pipes coming out the exhaust of the heat riser. It has a mylar reflective insulation sheet on the floor. This helps prevent the heat escape through the floor .The mass bench is then insulated with pea gravel which absorbs the heat and holds it and slowly radiate out over a period of time. The pipe coming out of the bench goes out of the window through the valve. The flue chimney pipe that goes out through the window to the outdoors is made of double walled stove pipe. A five inch pipe is inserted inside a seven inch pipe. The space between them is insulated with a aerated concrete refractory material .All this insulated exhaust pipe is doing is taking and adding an element of acceleration up the chimney to negate the net negative you get from dropping two feet down into the bench from the heat riser. https://www.youtube.com/watch?v=o1ZKm7QZ-dY