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Topics - dngspot

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User Projects & Pictures / Spikes Truck Drum Heater
« on: December 27, 2010, 03:02:45 pm »
I have been able to get 800 deg from my Roger Sanders heater and want it a bit warmer. So I am giving it a go with a different design. It has cast iron drums and a better air intake than the Roger Sanders design, in my mind.

The first thing I did was obtain a couple of 16.5" brake drums from a large semi type truck. I put them on the lathe at work and machined the drums so the open edge of the drums would mate with each other.

Here is a pic of the lathe I used; it took about 2 hours to do both drums. It is also available to me during off hours at work.



The drum edges, they are orange looking because of the fresh rust. I kept these in the back of my truck for a week while I gathered parts.

The outside cut on the bottom drum.



A close up of the inside cut on the top drum. Sorry for the pic quality.



The cylinder after sandblasting and removing the bottom 2 inches, I believe it came from a C-15 Cat engine. I cut the bottom flat and inside of the cylinder with the lathe. I cut the inside of the cylinder about .020" because that area seems as hard as diamonds and does not drill well. The air vent holes will be in the lower 3" of the cylinder.



I cut 2 round plates to fit on the lug side of the brake drums. Both plates have 5- 1/2" holes for bolting. There are more holes, two for the bottom plate to fasten the cylinder to.



This pic shows the top drum with the second plate on top.

 


I will post more as I go.

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User Projects & Pictures / My Roger Sanders Waste Oil Heater
« on: January 26, 2009, 02:23:39 pm »
1/7/09

I gave the MEN information to a couple of guys at work. We have an endless supply of used oil so why not make it happen. One of the guys has finished his unit. He did a 5 hour test run with a chimney sticking out the side door of his garage. It was 20 deg out and about 75 deg in the garage. His unit did not use the conical burner; he used a stamped metal pan. He also used a 4 inch computer fan to blow in the air tube. Over the five hours it used 2 gallons of oil. His tank is located above his heater off to the side. It is also attached to the heater. It also uses a simple needle valve for oil control. During the visit he never adjusted the oil flow.

I have started mine. I will be using a conical burner. I have pressed it from 1/4 steel. If it does not heat up enough during start up then I will go through the hassle and make one from aluminum. Tonight I stripped the hot water heater and cut a door in it. Then I noticed that I only have a 3 inch draft tube. Since Roger Sanders reduces his to 2 inch to slow velocity I will leave it alone. I will test it this way and if needed will still reduce it or weld in a 4 inch tube. I will also mount my tank similar to the unit my buddy made. I am hopping to have it finished by next week.

I hope no one thinks that I am hijacking this thread; I intend to show pics as I progress.

The burner.



The 40 gallon water heater tank with a door cut out.



1/8/09

I have not finished much; I picked up some hinge material (push tubes from a Cat 3406 engine). I am going to use a 30 lbs R134A tank for the tank that will be mounted above the heater. I have removed the handles and valve from the tank and silver soldered a 1/4 npt female fitting to the top of the tank. This will be the needle valve will mount. I also need to install the sight gauge and drill a 1 inch hole in the top for filling. Sorry I do not have any pics of this, the tank is at work and I am working at it on breaks.

I spent a little time on the heater. I cut the old draft line and mounted the burner. I also installed 1/4 inch npt plugs in five of the holes that were made by the hot water manufacture.

I am ready to start cutting and welding. The hole for the new 6 inch draft line still needs to be cut, the tank needs to be mounted and the door hinges need to be made and installed. I also need to install the frame on the inside of the heater door opening. I may weld this into place. Unfortunately I must do some garage cleaning to get to my mig and torches. I have been working on a few wood projects and need to move a bench and a few sheets of oak plywood. I will be working on this after work tomorrow.

Here are a couple of pics.




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