Waste Oil Heater Forum - Your definitive source for burning waste oil for heat.

I am building a waste oil drip heater. I have got a few 40 gallon hot water tanks for free so i figured i would try my luck with drip systems. I was wondering if anyone has used preheated air?
I am going to be using some exhaust pipe for the fees air and thought about halfing it or cutting out 1/4 of the tube length wise and welding it to the tank. Then the tank would act as part of the wall for the incoming air. This would preheat the hell out of it when the tank got warm. Has anyone ever done anything like this?  I wasn't sure if it would help combustion by having the hot as hell air assist in oil vaporization.

Any tips?

I have a plasma cutter so cutting the pipe like that is not a waste of time.

For my air supply i was thinking of using a venturi similar to what my Blue Point compressed air powered vacuum/blower uses. However turned WAY down.

Thanks!

Hello everyone! 

     I just got approved to join up. I had searched for a long time to see if anyone had ever run a torpedo heater on waste motor oil. I have seen TONS of other setups online. Lots of awesome custom builds. Some out of hot water tanks, some out of wood burning stoves, and some were just repurposed fuel oil systems.
I bought a forced air Dyna-Glo Workhorse 65,000 BTU brand torpedo heater off my friend. It needed all new fuel and air pump hoses. I tore it down and cleaned a crap ton of sawdust out of every single nook and cranny of this thing. To be dead honest i am surprised it didn't burn my buddies mom's horse barn to the ground.  She was using it and another one to heat it in the winter.  It was even packed around the stainless fire tube in between it and the outer shell.
It is rated to run on Kerosene or No1 fuel. Although some people on different forums argue about Kerosene and No1 being the same they are not according to fuel corporations. They even have different BTU ratings. So i figured i would give some good ol diesel fuel a go after paying out the nose for some k1. I'll tell you what.... no real difference IMHO. I had to dial back the pressure setting on the pump a little just because i felt the output heat may be a little too high.

Anyway...  i am wandering from my subject. I figured what the hell...  this thing has a siphon setup. Why not try mixing fuel with solom old oil i have. I dont have a filter system i filtered some oil through a few shirts a few times just to try it out. I pulled my fuel hose out and stuck it in a container and fired it up....  great success. No real stinky stankiness.

Well then i figured hell with it. I'd go 100% waste oil. However i needed to preheat it. I've seen that much from reading all the build threads on siphon setups. Well...  i am 35, have 3 kids, and am on disability due to a golf ball sized cyst IN my spinal cord nerves (one of my nerve roots literally ballooned uo like a insulation bubble on a piece of wire.
Oh... plus as my nickname suggests i just finished a small engine swap on the old family toter after my wife (whom has bad luck with cars) had the stock engine implode on her (and just today her 02 Jeep Grand Cherokee 4.0L started making a gid aweful noise). SO what do you do when the 3.8L v6 costs almost $5k? Well you stuff a damn LSx 6.0L and 6 speed auto transmission from a 09 Silverado 2500HD into it. All said and done i am right around the same cost as the stock 3.8L would have been. Even after buying brand new parts that i could have gotten used for way cheaper.
RAMBLING! Damn it. Haha
Well, i didn't want to try to prove my concept and spend a bunch of money just to see it fail SO I found an radiant oil space heater in the atic we hadn't used (it blows the breaker because the livingroom and 1 bedroom share a circuit, we use our sweet tv stand/electric fireplace in the living room a lot and it was in the bedroom )
So i drilled a hole in top and bottom of it after i pulled the heating element out. Ran some fittings into the holes, then attached tubing and a needle valve.
Well, fingers crossed i fired up the heater and tada....   It got that oil hot as hell and it did it FAST.  So i ran some into a container after preheating the heater on diesel fuel for a bit.  Then dropped the fuel pick up hose into the container and damn it if it didn't run wothout a hitch. I had to turn the air pump up some because the oil container was rather low and it was over to the side a bunch. It also draws out of a MUCH smaller hose.  The way it is setup temporarily is that the fuel pick up hose actually slides over the top of the short one zip tied to my oil container.
It runs awesome!  I ran it for a while too. I have some plans going forward though. I dont think its a good idea to breath in that burnt oil.
I am getting a couple 55 gallon drums from my buddy. I am going to cut a hole in it so i can but the heater tight up to it. Then i am going to lay it on its side and baffle the inside of it retains more heat. I am going to then either run some exhaust tubing sections through the drum so i can blow air through the tubes with a fan or bilge blower from a boat. That should make great heat. A stack out of the drum will take the spent fumes outside.  The other option was to run pipes through it for water or stuff an couple old radiators i have inside it. Then pump the water through those then to another outside the drum with a fan on it.
Well...  let me know what you think.
Here is a video i took of it running. I also comentated whats going on in the video as well.

https://youtu.be/OdkF49OGN-Y