Posted December 30, 2010 - 11:31 AM
Posted December 30, 2010 - 01:41 PM
Posted December 30, 2010 - 04:06 PM
Posted December 31, 2010 - 08:17 AM
Posted January 01, 2011 - 10:10 PM
DougT are you doing anything special when you mix regular #2 oil with waste oil ? Like filtering before mixing or perheating ?
I am just starting to experiment with this. The first I put in was all trans fluid about 50% with the #2. It lit and burned great. The last I put in was just out of the drain barrel. It doesn't want to burn right and the nozzle was plugged up with carbon. It still didn't want to burn right after I cleaned it but I've found cleaning a nozzle is usually "iffy". I had a .85 nozzle in it and tried a 1.25 but it doesn't burn right either, seems too rich and hard igniting. I'm not sure that nozzle is real great. it came out of one of the foundry burners and they're subject to a lot of heat. I'm carrying fuel in 5 gal cans right now. I'm straining the oil through rags in the funnel when it goes in the can. I'm just guessing at the percent and trying to get it close. Fill the can the rest of the way with #2 and mix it on the ride home. My tank is in the basement and close to the furnace but I've wondered about the preheater option. I think the commercial units preheat the oil to 160 degrees. This could be my problem now or may at least help. I'll probably thin this with some straight #2 and see what it does. I'll pick up some new nozzles of varying volume and angle and do some experimenting. i'm not putting much in the tank at a time so it won't take much to drain and try again or go back to plain old #2. I don't figure its going to get any cheaper so I figure its worth a shot. If anybody has any ideas, I'm listening!
Posted January 01, 2011 - 10:47 PM
Posted January 01, 2011 - 11:06 PM
The top of the page talks about ordering plans, if you scroll about 1/3 of the way down... there are free basic plans & pictures.
Waste oil furnace
Posted January 02, 2011 - 10:21 AM
As for the drip heater, there's one thing that scares me with that arrangement and that's catching fire back up the drip tube. I know a guy that burnt his garage down from rigging a drip tube up to his wood burner. I glanced through the directions but didn't see anything about that. The other thing I think you would need some way to clean out the burner. My first experience with burning waste oil was a factory burner that worked similar to the drip system but it had a low volume pump to pump the oil down the pipe and into the burner tray. The burner tray was basically just a cast iron pan. Every 8-10 hrs it had to be shut down and the tray taken out and cleaned. It was probaly 12-14 in dia and 1 1/2 high. If you ran the thing on max, it would get pretty full. It also has a draft blower. You put kero in the tray and lit it with paper then turned on the oil when it got warmed up. I used an old gravity fed kerosene burner and modified it with a fuel oil transfer pump to burn waste oil. It didn't have a removable tray and the tube was too low to add it without cutting the firebox. I rigged a tool to get in there to scrape and scoop it out. It worked OK but eventually it get too carboned up to use.
Posted January 02, 2011 - 10:50 AM