This 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.
- How to Generate Emergency Off Grid Power using a Car Alternator and an exercise bike.This project goes into the build of a DIY pedal powered generator out of an old car alternator and a bike. This generator is useful for powering your devices and gadgets in case of an emergency or grid down scenario. The materials you need to build this generator are bike, MDF for base plinth, magnetic trainer stand for bike, Alternator, drive belt, 12V battery, cable connectors, 12V socket, multimeter, screwdriver, insulation tape. The rear end the bike and rest of the components are mounted on a one inch thick MDF board. This has a good amount of stability that keeps it away from moving around. We add an extension bit on the front. The extra height there just compensates for the fact that the back wheel is in a stand. The alternator is mounted nice and secure onto the base using brackets. Bolts connect the alternator to the brackets and screw the brackets down to the base. Once you are pedaling, and you have got electrical load in the circuit, there is quite a bit of force pulling the alternator forwards. So it does need to be really securely bolted down. Make sure that the wheel of the bike is in line with the alternator pulley .With any wheel, we have rim bed and the rim walls. Here what we need is a drive belt that fits purely in the rim bed. Make sure you measure the internal width of the rim bed . Also measure the width and depth of the alternator pulley grooves and get a belt that fits accordingly . Also make sure you have got a belt that is long enough because a typical drive belt that is used in a car is not going to be long enough because it is only made to go around a pulley on the engine. The car alternator used here has three wires coming out of them .It has a main power thick output wire, it supplies main power to the devices. Then there is two small cables, one for voltage sensing and the other for field coil ignition. The voltage sensing wire goes straight to the 12V lead acid battery in our case. To get the alternator generating power you first need to apply a small voltage through the field coil and that is because an alternator doesn't have any permanent magnets in it. The way that any generating device works is moving either electrical charges through a stationary magnetic field or moving a magnetic field around a charge. So the field coil inside the alternator is attached to the field coil ignition cable, and putting a voltage generates the magnetic field, which enables the alternator to generate power when you turn the shaft via the drive belt. You don't need to keep applying a voltage to it as it's running, because it will generate its own power. The negative from the alternator is connected to the negative of the battery. The positive connection from the alternator is connected to the positive of the battery. The third connection coming from the alternator is the field coil activator .This is connected to a switch .The connection goes back to the alternator to active the field coil. A standard cigarette lighter socket is connected to the battery terminals. It will draw power off the battery first, and once you start charging power, because the alternator is connected into that, it is going to draw it from the alternator, and the alternator will simultaneously power whatever is connected into that socket, and recharge the battery. The alternator used here has voltage tolerance of 11 to 14V . A Modular splitter is connected to the cig power socket to charge multiple devices. Make sure that the plug comes with a fuse or whatever you plug in needs to be rated to the right power for what you are going to charge . To run alternating current devices, we connect a 150W Power inverter to the circuit. The alternator actually generate alternating current. But its got a rectification circuitry built into it, which changes it to DC. The inverter changes the the DC output from the alternator to AC. Finally ,we add a master switch that switches the battery on.The Power switch stops any drain from the battery through the field coil . The switch also connects the multi sockets that charges various devices. It isolates the battery from the circuit. It isolates the alternator from the circuit, and it isolates the remote switch and the battery from the field coil completely. The AC generating device like an alternator have a minimum speed of operation in which they are stable. So do check for your alternator, what is the recommended minimum speed for it. If you spend it below that speed, what happens is because of the way it works, you get a periodically varying force which acts as a resistance to your pedaling. https://www.youtube.com/watch?v=_Hx1ptv6RKI
- How to build an DIY 12 V Portable Water Pump Box with filtration system for Outdoor Survival / RVThis project goes into the build of an offgrid portable water pump and filtration system that can turn any water from your creek,lake,river into safe and clean drinking water . This 12V portable system can be powered by solar or from your car directly and is ideal for camping , RV or outdoor survival enthusiasts. This system enables them to pump water from a fresh water source, filter and then store or use in case of emergency survival situation. The materials you need to build this portable filtration system are as follows. A tactix storage box to lodge the water pump,inlet and outlet hoses, an inline water filter or twin carbon 0.5micron filter, pex pipe, garden hose pipes, 12mill barb strainer,rocker switch ,12V Shurflo water pump with the flow rate of 11 litres per minute, 50 amp Anderson plug and 10m heavy duty wire ,basic tools such as wire cutters, long nose pliers, solder. The first step is completing the wiring for the water pump inside the tactix tool box. The rocker switch , the Anderson plug and a 7.5 Amp inline fuse are wired. The 12V rocker toggle switch is mounted at the center of the box lid. The power input plug or the Anderson plug is mounted to the left of the switch. This input plug connects to the car battery or a solar battery. The positive red wires from the switch is connected to the Anderson plug through an inline fuse .The negative black wire from the plug goes straight to the switch. The remaining wires from the switch is then connected to the water pump which will be installed later. The wires are covered with corrugated split tubing to ensure that it is protected and safe. The filter strainer is installed on the inlet side of the pump using an elbow, thread tapes. The strainer will filter out any unwanted debris before it goes to the pump. Couple of holes are drilled into to the side of the box where the inlet and the outlet hoses will connect the water pump. The male fitting are attached to the holes before the pump is installed. The pump is placed inside the box and mounted securely in such a way that the elbows are facing towards the two holes for the exterior hoses that was just made at the side of the box. Once the pump is mounted ,we connect the red and black wires coming from the switch to the positive and negative connections of the pump. The wires are once again covered with corrugated split tubing for safety. To connect the pump with the hose outlets , we measure the distance between the outlets and the pump and connect two pex pipes . Heat was applied to the pipe for bending and moulding them to connect the outlets. The 10 metre 50 Amp Anderson plug extension heavy duty cable wire is connected to the power source .Here the power draw is from a car battery. The other end is connected the input anderson plug on the top side of the box. The inlet hose with the strainer attached is placed sitting midway into the water source .The other end of the hose is connected to the intake pipe coming from the pump inside the box. The The other hose is connected to the outlet pipe coming from the water pump inside the box. At the end of the hose , we connect an inline water filter or a twin carbon filter . The carbon filter ensures that there is no sediments or debris inside the water and also helps to eliminate bacteria and other contaminants. https://www.youtube.com/watch?v=bLiTn8YacWo
- DIY Video :How to heat your Home by building an Smokeless Outdoor Wood Boiler from Start to finish