How to heat your Garage by building a Super Insulated Radiant Floor Heating System

    This project goes over the installation of a homemade radiant floor hydronic heating system for the garage. The radiant floor heating uses a pex tubing that is installed along the floor of your garage or room . Hot water is passed through the tubing which radiates the heat out into the room or space.

    The first step is to figure out what size pex coil tubing and how big of a water heater you would need . Also how many feet of tubing would allow enough heat to exchange into the concrete floor to sufficiently warm up the entire space. The total BTU/hour or heat required will be based on the square footage of your garage or room .

    We begin by levelling the ground and start laying down a vapor barrier .The vapor barrier is made out of 6 Mil Visqueen plastic PE film .The barrier keeps the moisture from under the ground to rise up to the surface of the floor. We then lay a mixture of sand and packing gravel before installing the two inch extruded insulating polystyrene foam on the floor and the perimeter.

    Four circuits of 800 ft half inch Pex tubing is stapled down on two inches of polystyrene insulating foam using a pex stapler. The eight tube ends are routed upto to a box from where it is connected to a manifold which is mounted on to the wall. The pex tubing with the supply and return tube is connected to the manifold with the help of a compression fitting .

    To check if all the connections are OK or if there is any hole or leak in the tubing, connect the manifold to a 100 PSOI air pressure gauge to do a pressure test. Five inches of concrete is then poured over the pex tubing circuits. Saw cuts of less than an inch are made into the concrete to allow for the shrinkage during the curing process.

    To insulate the pex tubing and to prevent water from entering into the floor, an expanding foam sealant is filled near the junction where the concrete meets the supply and return tubing near the manifold.

    The heating components of this system are mounted on a 4 X 4 square sheet of plywood. The heater has a rating of 7.2kW . The heater is flow activated which requires a circulating pump to pump water through it which then activates the heater based on the temperature setting.

    Two 120V fractional horsepower circulating pumps are used , one for running the water through the heater and the other circulates out through the pex loops. The pump has an inbuilt garden hose connector system used for draining.

    The hot water coming out of the output end of the heater passes through a pressure tank which removes the air bubble with an air release valve and prevents any water hammer to the system.

    This is further connected to the flow activated circulating pump for the heater with connections for filing and draining the system with the help of shut off valves. The water then comes down to a stainless steel manifold and then flows through the supply end of the pex tubing . The heated water splits into four supply loops at the manifold into the concrete floor.

    The water then returns back to the return end of the manifold through the other four loops of pex tubing and goes straight through another circulating pump and a Y strainer filter before circulating back to the heater.

    Two thermometers are connected at the supply and return end of the pipe to know the temperature difference of the outdoing water and the returning water. The flow is controlled by a thermostat and a switching relay that turns on the circulating pump .



    RECENT POSTS YOU MIGHT LIKE
    • DIY Video : How to get Gold from Scrap Computer parts that you can find at the junkyard
      This project goes over how you can easily refine and smelt Gold from Old Scrap Computer Memory Chips . The materials you need for this project are some Muriatic acid,Hydrogen peroxide,Urea,Sodium Metabisulfite,Nitric acid. Cut the little gold fingers from the chips using a heavy duty scissors.Get right to the edge of the gold and cut that off. Okay, now that we've got all the fingers cut off of our memory chips, we put them in a plastic container.And in equal parts, we're going to add our hydrogen peroxide and our muriatic acid. Let it sit for 24 hours.If you can put it out in the sunlight during the days or the day time and then bring it back in at night,that's ideal. Drain the mix through a coffee filter and into another plastic container. And then we will rinse distilled water in these fingers and go through each one of the fingers and make sure there isn't any gold left on them. Filter the Gold granule filled water using a coffee filter,add sprinkles of distilled water.This helps to move those tiny granules around. Add some nitric acid and muriatic acid to the gold mix and put it on a hot plate or a coffeemaker and turn it low.Let that gold dissolve into the mixture. Strain the mixture through a coffee filter and rinse them though distilled water and put it on a burner. Now we are going to add Urea. Basically what the urea is going to do is neutralize the acid, we're going to start with one tablespoon of this, and then keep adding it stops bubbling that's all the acid neutralizing right there. Now we're going to add our sodium metal by sulfate, we're going to add two teaspoons of that. And that's going to turn all that liquid gold into metal. Let the mixture sit overnight and let it settle down.Everything on the bottom is going to be our gold, and it's going to be ready to smelt. Heat them till its melted and upon weighing its around 1.91 grams. Next step is testing the gold we have produced and see how pure it is. We use different acids based on the karat.If there is no reaction from the acid test,ifit's not changing colors, and it's not dissolving ,then we have a pure 22 or 24 karat gold here. If you follow this process, you will be able to convert all of your old and outdated computer chips into pure gold that you can turn around and sell for money. It’s a great way to salvage your old electronics and get some value out of them. https://www.youtube.com/watch?v=8lXd85YfcvY https://www.youtube.com/watch?v=5c9Z5UYsUV4 https://www.youtube.com/watch?v=qkmhEGBjyMs
    • How to Install a Complete Micro Hydro Alternative Free Power Generation System for your Home.
      This project goes over the details on how you can setup and install a 300W Off the grid Micro Hydro System for your home . The water source mentioned in this project have a flow rate of 15 - 30 gallons a minute and the drop between the source and the house is about 150 feet. The first step is to make an intake angled screen box for the system that helps in channeling the water from the source. The aluminum screen on the top blocks leaves, sticks and other debris to pass through into the box . The box is made of a 24 inch 2X10 ,2X4 and an 2X8 angled piece treated lumber. We add 3 one and quarter inch attachment points on the lower side of the box for the hdpe poly pipes. The box is secured using exterior screws on the outside and inner tubes on the seam to prevent leaks. The box is installed on the creek with help of couple of three and half inch concrete anchors and two boards are screwed on both the sides for support. The outlet poly pipes from the intake screen box goes to 55 gallon plastic barrel which acts as a silt catchment and also an air free source. The 3 outlet pipes are connected to the top of the barrel with the help of uniseal rubber gaskets. A 2 inch pipe is installed midway on the tank for the penstock. We also install an overflow pipe near the top of the tank to take the extra water out and a three inch cleanout pipe at the bottom . The cleanout pipe can be unscrewed to remove the silt and debris out. To take the water from the intake to the turbine, the penstock used here is a 100PSI 1100ft 2 inch poly pipe. A threaded adapter is glued to the outlet coming out of the barrel. It is then connected to a two inch full port shutoff ball valve followed by an another threaded adapter and a pipe. The penstock poly pipe is attached to this pipe using barb fittings with hose clamps. Next step is to install the pressure gauge and the surge tank to our penstock pipe. Water will come down through the poly pipe into another PVC pipe fitted with a pressure gauge, surge tank, two inch closing ball valve and a union to remove the turbine from the pipe. The surge tank is made of a standpipe that will prevent any water hammer affecting the pipes. The two inch poly pipe coming out from the barrel is connected to the two inch PVC surge tank and pressure gauge using regular . If the main shut off valve is suddenly closed, this tank will allow some of the surge to be absorbed. Next step is to build a housing for the micro hydro turbine. It is going to have a lid that opens up and a drain field pipe that goes out back to the creek. The housing for the turbine is made of three quarter inch plywood that is 2 X 2 foot wide and one foot tall. The turbine sits inside the hosing in the middle with the help of some 2x 4 scrap wood and a bucket lid piece. Then a 3 inch exit pipe comes out of here down through the middle of the housing .This drain pipe keeps the water from piling up under the turbine. The Micro Hydro Turgo Turbine is custom built based on the head pressure and the flow rate of the water source. It has three ball valves and four quarter inch jet nozzles coming out of them. The ball valves can be separately turned off when there is not enough water .The turbine is wired up to be three phase. The water coming out of the penstock hits jet nozzles that turns the Pelton wheel which is connected to 3 phase AC motor. To connect the turbine to our house, we use a 10/3 underground feeder wire. The wire is enclosed in a one inch conduit pipe. The proper way to install wire into a conduit is to get your conduit all glued together. And then you have a vacuum that pulls a string through. You tie your string to the wire and then pull the wire through the conduit. The wire goes into the house through a PVC conduit body. We install a junction box on the housing of the turbine to join the 3 phase turbine output wires to the 10/3 UG feeder wires coming from the house. Inside the house, we connect a rectifier to the three legs of the three phase coming from the turbine .This converts the AC generated into DC power. To generate useable power from this micro hydro system we need to install certain electrical devices in our houses. These include the MPPT Charge Controller, Grid Tie limiter Inverter, breaker box, disconnect switches and the batteries. These components are mounted on a 2 X 2 foot ,three inch plywood board. In case there is some excess heat for one of these electronics at some point, we cover the plywood board with a piece of sheet metal so that it will act as a heat sink. From the rectifier, the connection goes into a 25amp breaker box .The red wire goes into the breaker box and then further connects to positive of the charge controller. The negative white wire is directly connected to the negative of the charge controller. The five 12V AGM batteries are connected in series using four gauge cables. The positives from the batteries are connected to the charge controller and the inverter via DC switches .These switches allows us to isolate and disconnect the components individually. The negatives from the batteries are connected to the negatives of both charge controller and inverter respectively. The inverter is further connected to receptacle from where it goes straight to the main supply. https://www.youtube.com/playlist?list=PLTrfbWw_mKRL5Ae_x1Q4-1pOs0NJGwnzi
    • How to build a Homemade Chainsaw Mill from Scratch. Step by step Build Instructions
      This project goes over the build of a simple and basic DIY chainsaw mill from start to finish. This chainsaw mill is portable and doesn't require very large space . This is a very inexpensive way of producing lumber from logs and can be made from easily available materials from your local hardware store. The materials you need to build this chainsaw mill are one by one square tubing, half inch square tubing, quarter inch flat bar, weld nuts, bandsaw and welding unit. The welder used here is Millermatic 212 auto set mig welder and the saw is Homelite 1130g The dimensions of the saw are as follows. A 12 inch deck to slide across the log that acts as a milling surface. The max width of the mill is 26 inch. An 8 inch metal to grab the bandsaw on both the sides. A quarter inch flat stocks for the holding the saw. We start by cutting 26 inch pieces for the sides and 12 inch pieces for the sides. Assemble them into a rectangle and weld it using a MiG welder. Do Check if the corners to make sure it is square and the sides are even. A center bar welded into the rectangular guide plate, just to give it a little bit more support and make it so that it doesn't twist. Two guide posts are welded onto the sides. 2 larger pipe sections of dimension one by one is cut .This will slide within the guide posts. This is done so as to make the saw adjustable to how thick it cuts a slab .The side posts also gives you adjustability on the deck to move up and down. 4 quarter inch flat bars of length nine inches are cut . Two of them are bolted onto bottom section of the rails that slides up and down on the guide posts . The saw blade is placed securely between these bars. A small spacer block is welded onto the bars so that it doesn't touch the saw blade. Three eighth inch weld nuts are welded onto the side posts . Tightening with the bolts locks the adjustable rails in place. A crossbar is welded onto the guide posts .These help push the bar along when you are operating the mill and it is a nice place to put your hand , It feels like you are farther away from the chain. The chain saw blade is inserted between the flat brackets at the bottom and it is locked tight in place between the spacers using 3/8th inch bolts. For the first cut, we attach a flat plate at the top of the log so that the bar has something to ride. The height of the cut is adjusted with the help of the side rails on the mill . The saw is then started and placed on top of the flat plate to begin cutting the log. https://www.youtube.com/watch?v=DA-HknSaBvI