“Sometimes the kids assembling them are tired and forget to tighten the clamps” 😂

I run two tanks with mine, I used two solenoid valves to select which tank I draw from. Tank one contains pure diesel and the other is 50/50 waste oil mixed with diesel (an old 500l oil heater tank). I start the heater with straight diesel then after it reaches running temp I switch it over to the mix and it runs fine (and clean). I then switch back to clean diesel about 15 minutes before shutdown, and run it flat out at max temp for the last few minutes. That cleans soot off the glowplug mesh to be ready for the next start. Also, it's fairly critical to use the burner intake filter as it creates a pressure balance for the burn chamber ensuring a correct AFR. I've had about three years trouble free with mine, although I did buy a spare glowplug, a gasket set and stainless steel burn chamber, expecting one to fail at some point. It still gets through the waste oil over a winter and offsets my low running cost by another 50% so I'm happy with that mix. I've heard of people doing 1/3rd diesel to 2/3rds waste oil, but it would still require clean diesel to get started in cold weather. Cheers.

I see a few mentioned but will just walk through this. 1. The pump has to be at a 45 degree angle with the OUTPUT up. It's a piston style pulse pump (hence why you hear the ticks). 2. The chinese are using the wrong fuel tubing as it is soft compound and the "pulse" is being diminished with the soft tubing. You are supposed to run the white hard plastic so that the the pulse pushes like it should. 3. As with any fuel, yes. . you should filter it at a reasonable level to prevent sludge and unburnables from entering the BURN chamber (this thing should be respected for fire hazard reasons). 4. You can run this with waste oil but you should cut it 50/50 with diesel and when running it with waste run it at max. 5. When running the unit with waste you should run it for about 30 minutes every 4th or 5th refill with pure kero and run it on hot to burn out all the carbon trash that builds up to keep the burn chamber clean. Finally. . .any time the unit is run dry it requires a prime process (read the manual) or you will have those shutdown issues. You need to learn how to run it period on diesel first. Had you learned the test would have probably worked till the burn chamber got all carboned up and the glowplug finally said oh hell no. Your welcome.

If you'd read the instructions, they helpfully request you set the fuel pump at a particular angle. This helps stop the pump get an air lock due to the cavitation bubbles being drawn in.

Pre-heat your oils, it'll work and don't need mixing. In the old days, people running oils on old diesel engines used to wrap copper coils close to the exhaust.

Need two fuel tanks. One with straight diesel for start up and shut down, and another 50/50 to run on. Elevate both above the machine and switch using valves. This being said, these things are very fuel efficient, so the risk vs. reward may or may not be in your favor. Will likely get a LOT of carbon build up in the combustion chamber when running oil.

We push ATF thru the fuel systems on setups without emissions controls because it's basically detergent and lubricant. I wonder if blending diesel and ATF and running that once in awhile would make this work. Also if look into using ATF in all your small engines before storage it's a great old school trick for keeping everything maintained.

Doesn't work beyond 30 hours - it will fail to restart. The glow plug won't be able to initiate ignition., Even if you go as low as 60% waste oil & 40% fresh fuel, the heater will still crap out. Some will tell you different but they're spoofing. You will have to go through a process to get it to re-fire even using clean fresh fuel. That process is Dull. Run it on fresh diesel, turn it down to setting 3 - it will run great & economically - these aren't built to cope with waste oil. They crap the bed rapido & will do your head in.

Your patience and attention to detail earned a sub!

Really liked the intro, very cool and funny and no long messing around - trust me, I watch a lot of youtube and I can tell the difference. Number two I would like to adress is that I liked and subscribed because I believe in supporting newcomers here instead of all the channels with their millions of views and subscribers.. all of them started small. Ok, I will now continue watching.. keep it up!! I would also recommend first mixing it 50:50 and then do some basic filtration with a paper filter just to get the worst junk out. Also have a look if your diesel heater comes with a fuel filter in line after the tank, if not retrofit one, they are cheap

I'd love to see you properly filter at least a couple gallons of oil and then try it in steps: 25% oil in diesel, 50% oil, 75% oil, then (if it's still working) 100% oil. Trying to run it on a mix of oil, soot, metal shavings, dirt, crumbled leaves, gasoline residue, and condensed water is too many variables and probably a bad idea in the first place.

I was wondering if it would burn the waste oil, so glad you took the time to make the video and also sacrifice your unit to do the test !!! Thanks !!!

since so much heat escapes through the exhaust, it is worth expanding it further, making something like a radiator, or maybe using an old radiator from the car as an exhaust, which will absorb the heat and this heat will remain in the room And finally, just put the pipe outside

Using 100% diesel to start it and to stop it helps alot. They come from the factory set at a certain air fuel ratio set for 100% diesel. With different fuels you will need different air fuel ratios in order to burn cleanly and keep from clogging the glow plug screen, and also the hard to clean mesh just inside the burn chamber. If your controller allows it, some don't, you can get into the secret menu which will allow you to change the air fuel ratio through the pump speed and fan speed. There are UKposts videos on how to do this. I highly suggest changing the air fuel ratio in order to keep from having to disassemble and clean it often. I bought one of the aluminum cased bread loaf sized ones in order to do the same thing, I just haven't spent the time to get it up and going yet. I have a lot of 20W50 from my Peterbuilt that I have been collecting.

highly recommend anyone running these units put in an inline filter before the little pump.

I picked one up and it works great. I watched a ton of reviews and product reviews. Its an oil furnace. Because of the small size and its tolerances, it can't run on everything. The combustion chamber does get overwhelmed. But it can overheat. Set the fuel pump to a low "pulse" and find a dilution rate that works. They will run around 24 hours on a gallon of fuel. Also keep the battery charged. The glow plug is the biggest draw on the battery.

I bought one of these last year and it's good to see you've done exactly what I thought about doing by running it on oil mine's still brand new so I learned a lot from your video😂

Thanks for having a pair to give it a try. I'd have never tried it 100% waste oil. I'd have started at 50/50 and see what I got. I don';t get a ton of waste oil, but to burn off what I do get, I think I'd go with 1/3 oil, 2/3 diesel and expect it to work just fine after I burnt off the 5 quarts of oil and back to straight diesel with hopes that would clean the soot off the internals.

It needs to be filtered for aure. You've got bits of metal in the oil, which is what the oil filter in your engine blocks. I'd filter it with a good, tight filter media, and then do a 50/50 diesel/motor oil mix.

Thanks for this! basically answered some questions i had about these heaters!

The exhaust tubing isn't to keep things from burning at all. It is to prevent carbon monoxide build up in your room. The deadly gas that doesn't have an order. I haven't completed the video but I hope you have a carbon monoxide detector in your room. The muffler as you figured isn't needed. Stay safe.

My kind of video! I love watching people try things out that many of us only think of. You save us the trouble and DESERVE a LIKE and SUBSCRIBE! Very entertaining too! Thanks man!

I think the motor oil will clog up the nozzle where it 'atomizes' the fuel for burning. Noticing how hot the exhaust is, I would make a heat exchanger (coiled up metal tubing) for the exhaust with a fan behind it before it goes outside. That would improve the efficiency and heat up time of your shop :) I have a dyna flow torpedo heater (80k btu) that I run off diesel and works the treat in my 1.5 car garage.

Got mine yesterday and it's heating my greenhouse nicely at night. Right now it's running on diesel but I plan on having a second tank mixed 50/50 oil diesel to burn but have switched to diesel for warm up and shut down. I also got a vevor Bluetooth to beat the house with, but won't need with oil mixture in that one. Very interested in seeing what you will experiment on your heater and results.

I subscribed - because you are REAL.... LOL! And I like being warm in the winter and we are thinking of installing one of these units in Northern Nevada. Thanks for the video!

Nice video. We are having single digit weather so I fired up my old kerosine heater, to make sure it was still working. It's been sitting for 8 years in the garage. The temperature fluctuated from -10 to 130. I've always called B.S. when people claim old fuel won't burn. The electric start wouldn't work, but the old batteries were corroded and even though I replaced them, I think there is corrosion on the terminals, so I used a lighter. Works great. This is an emergency heater, and I figure I can always take fuel from my truck if I was in a hard spot. :)

So I have the same cheap heater but I had an issue with my pump. My heater is not fully enclosed but the pump I mounted at a slight angle. I kept getting e8 error and after doing research I found a video of a guy with one like yours saying the pump needs to be vertical. Meaning the input is on the bottom output is on top. Once I did that I never had an issue unless I run out of fuel

2:1 diesel/oil ratio works fine. I also use separate tanks to perform starting and stopping fire with 100% diesel, to prevent clogs on burner screen.

Always wondered what would happen! Thank you for this demonstration, instant sub

The catalyst screen plugged up on mine almost identical to your red one with corn oil and diesel mix. I took apart the combustion chamber and cleaned the catalyst screen. Been running good now over a month. Only using diesel now

Really happy you did this!

The hammer through the wall worked perfectly, I don't just give out subs to new people in the first few seconds of videos. The clipping before the end of the word "smash" did it for me. Good job. -"Ummm...I don't care, really." YASS QUEEN SLAY. God that is such a vibe. This whole video is a vibe. -Screen touch for texture of product -Drinking the cursed coconut lacroix -Hammer is a hole saw -vERveVEVror Keep up the excellent work, I'll be poking through your catalog.

What if you ran the exhaust through a radiator or some type of heat exchanger before it went outside and then blew a fan across it, seems like you could squeeze a little more heat out of it.

I'd think you could legally run it on heating oil which is cheaper because it doesn't have the motor tax that is on diesel. It's pretty much the same thing. I mean, you're using it for heat, not to power a truck. I don't know if you can get heating oil anywhere or just where it's used.

Mine came today thank you for the information on it , I too was thinking drain oil ,but not now

for the costs of the units, it is worth trying things out. I have been thinking of getting one and maybe trying to mix diesel and cooking oils. Thanks for sharing

Funny you mentioned to take the cover off and check all the connectors. I took mine off and immediately found the fuel line has a kink in it where they have it going up at an angle and the line turns to go down.

I saw one guy say that if the waste oil is synthetic, you need to add 20-30% e85 to increase the flashpoint, essentially make black diesel. You should still start with diesel, switch to black diesel with another tank, then shutdown with diesel.

I’ve had one for 4 years and I only paid 100 dollars back then for it. It heats my 30x30 garage to 65 degrees. I love it. The only thing I’ve had to do is open the unit up and clean it out put all new gaskets and glow plug in and it was good to go. And I only had to do that because I was running it on a battery and it would just die and when you do that it don’t run fan until the flame is out so it causes a lot of mess inside lol. But the rebuild kit is only less than $15..

Thanks for the video. Where are you located? Do you feel it can keep your garage warm? How big is the garage?

Do not forget that stingrays are not meant for small spaces. Burnout emits exhaust gas. As usual, stinger for car engines. Prolonged indoor breathing of this stinger heater combustion gas of nitrogen dioxide is dangerous. It is easy to get poisoned. There have been several accidents. Poisoning with stinger heater in small rooms garage or workshop in small rooms. The room must be ventilated so that you don't have to breathe the combustion exhaust gas from diesel heaters. Such parsti heaters are designed for outdoor work. In large rooms. Electric heater blowers are better used in small spaces. Or an autonomous oil heater in small rooms.

I'd be interested to know if it will run on black diesel, mix of engine oil with a splash of gasoline to thin it down.

This video randomly popped up in my feed, and the first 10 seconds made me laugh hard enough to subscribe. Thanks.

That test earned a subscriber. Good job!

You absolutely tripped me out destroying that heater 😂 what a great video!!!

Fuel coming out of the intake seems to be caused by overfueling. I was working on a momth old webasto that went straight to 10+k feet without altitude adjustment. Could not start because of soot build up inside. Coal was falling out of it. Then i noticed fuel coming out of the intake, unplugged fuel from the heater and it started after 5 tries blowing lots of smoke and chunks. I ran it on full blast for a few hours. Smoke cleared up and afaik the heater is still working.

Going on three years burning waste oil and old cooking oil as well as tranny and hydro fluid have good in line filter tank is raised four feet if looks very thick will add a couple cups gas and mix it well less trouble if burn on higher settings people who say it dosent work have no riging fix it skills have even burned old 90 weight oil.

I filter my waste oil with gauze and mix 2/3 fuel, 1/3 oil. Fill the tank with diesel first, and follow with the oil. This works fine and won’t damage the heater and your fuel cost is cut by 33%. And the unit seems to run more economically and hotter heat output with the muffler installed.

you may find that you'll have to clean the burn chamber a little more often than if you were running straight diesel, you'll get a lot of carbon (and crap) build up.

The nozzle that sprays the fuel is made for diesel and oil to think to push threw it, the nozzle for used oil is set up with air siphon, to push oil threw. In order for you to be able to push oil threw the nozzle and for oil to burn, you have to thin it out, usually 50/50 is the best, 50 oil and 50 diesel. That will allow the oil to push threw the fuel pump and threw the nozzle, and will be able to burn efficiently in the heater, it will also keep from carbon up the burn chamber.

Have you tried running diesel diluted ATF? It cleans injectors in the big engines....

Thanks for the video, most people who use waste oil for fuel dilute it 9 parts oil and 1 part gasoline. Look fwd to the rest of the videos. Best Wishes & Blessings. Keith Noneya

I noticed that the oil jugs you were using said synthetic on them. If this is what you run all the time, so your used oil is actually synthetic, that could be your problem. Synthetic oil does not burn well at ALL due to a much higher flashpoint. Remember the oild Mobil one oil in the frypan commercial?

The button is pressed :) I would suggest a 50-50 mix. It's what being recommended for cars. They also start and shut off on straight diesel to not clog up injectors. Separate tank with valves is needed fo dat. But maybe you already know this :) Thank you.

Hi,im been used for 5 tanks,3 liter of diesel,2.5 liter of hydraulic oil and 0.5 grams of gasoline. All mixed well and heater work verry good,no smoke at all at start

@SteinFab Garage 1. Oil has too much shit in it that creates ash. There is a non-serviceable mesh "gauze" inside the top of the combustion chamber that will carbon up and cause exactly the issues you're having. 2. In the short term, you can remove the glow plug and pull out the mesh screen that sizes around it, clean it with a torch and reinstall it. Likely it has fouled up from running straight waste oil. 30-50% will not plug that screen generally. 3. If you remove the combustion chamber and look inside of it, there is likely a large deposit of ash building up at the far end (top) of the tube, around the piece that looks like a splined axle shaft. If can be cleaned a bit with a pick, but once this starts happening the gauze I mentioned in 1 is pretty well pooched and you're best off to buy a new combustion chamber. 4. Running any substantial cut of engine oil will eventually cause the unit to do this. ~30% is probably about the maximum I would bother with, but only if you don't mind taking this thing apart frequently and have a free supply of used oil as an incentive to use it. 5. Vevor is about the worst brand of diesel heater. They kind of just send out thousands of units per batch and there is no standardization between batches a, b, c, d, etc so you're getting whatever parts they had available. My Vevor is a piece of shit whereas an even cheaper unit off Amazon runs flawlessly in my jet boat. 6. How is it a piece of shit, what can be different? Everything from the combustion chamber itself, the gaskets, glow plug, fuel pump, muffler, controller and ECU, fuel line, case material, etc. There is a lot that is different between units. 7. An Australian guy sells a controller called an Afterburner which is WiFi, Bluetooth, etc. Easy to tune the mixture, etc with it too. That said, all motherboard for the past couple of years don't allow low-end tuning any longer. Low basically = 1/3rd of Max fuel and fan rpm... 8. Hammer another pipe through the wall for the intake. If it flames out it will fill the garage with smoke as now know. Having the intake inside also causes a pressure drop in the garage which is balanced by cold air from outside, coming inside.... 9. Aliexpress and Amazon have fuel pumps that have an integral screen in a sight glass you can see and service... It's a better pump than many of these units. Bubbles coming from the pump outlet are normal. 10. Any fluid that burns with a lot of ash will destroy the combustion chambers on these. I've run all kind of crap through mine, but diesel or diesel and gas is all that works... 11. Yes, it does run on gas.... Which is recommended in the winter to dilute your diesel with ~20% gasoline. Gasoline contains slightly less BTU, but you may not notice especially if you have two running. 12. Your fuel pump needs to be angled or it will not pump. ~45 degrees +/- 10 degrees is a good goal. It isn't that fussy, but horizontal will not work for sure. Good Luck.

I used to run my 5 cylinder Mercedes benz used Canola oil ,It was not quite as much joules of energy as dieselfuel and after about a month or so of filtering the cooking oil through a 5 micron maple syrup press it became hard to start without using starter fluid.I mixed diesel 50/50 with the canola oil and it was a bit better but I think all the tiny carbon molicules of food built up arond the rigs and made them stick loosing compression.These cars actually run on compression Iginition. Thinking about your problemI'd start of by filtering your used oil through a fine 5 micron filter and mixing it 40/50 with diesel and if you add like 10% gasoline premixing it well before you run it and also making sure the concoction is at room temp you will have much better results over the long term. Also getting a bigger ajustable fuel pump would be more reliable. I make a waste oil heater years ago and had a stainless pot Id put some used oil and paper to start up and get the pot hot ,then I used a spray gun shooting air and waste oil through a 2 inch pipe 4 feet up from the pot at the bottom of a water tank where the pot sat. I was to conclude that it worked well because you can have control of the fuel air mixture like you would paint.The draw back was you had to have your compressor running to maintain proper regulated air supply for the burn to be smoke free . Atomization with correct air supply is the I key.The spray gun tip is made of brass and changing tips after a couple weeks run time was nessisary unless you turned up the air presure to get the right mix for the worn spray gun tip. Unfortunately use oil has worn engine particulate and wears out the tip. If some how you could have a tip made of Corundum like a water jet cutting system It would last years. Idealy Id like to turn plastic waste into diesel fuel with a process called thermaldipolymerization and burn that in your heater . Im subscribed!

I run 1L old gasoline to 3L old oil. I start the heater with some propane in the intake and once it’s running I run it on high and it’s worked great for me

"Sometimes the kids assembling them are tired" got a subscribe from me. Well done good sir.

I too have a lot of waste oil and have been curious how these little heaters would handle it.

Bought the same one you did.Havent hooked it up yet.Waiting to see what you do

Automotive oil filters are in the 20-to-30-micron range. Hydraulic filters go down to around 5-to-10 microns.

Hi there... I have tried to use waste oil (car engine) it make a lot of carb8n 8r what ever deposit in the combusting chamber... My VEVOR firstly showed 220 Celsius on heater and afzer 5-7 liters of waste oil it started to show 140 c temp..... I have it disassembled and I have found approximately ⅓ of combusting chamber filled with deposit of carbon / trash... I have cleaned it and tried to use heat oil (light oil for heating, cheaper than diesel but filtered enough to guarantee propee work... Temp on combusting chamber is again 200-220 C... Heating oil is half price of diesel... Not suitable for new generation of diesel engines but working for oil heeters... Tested...

I'm living in my truck, can I have that heater when you're done with it? Thanks

Great Looking ManCave/Shop - Lighting kicks butt!

Combustion chamber was flooded with oil because the flame died and the heater kept pumping for a few minutes. Try filtering your oil before feeding it to the heater, run the oil delivery pipe close to the exhaust pipe for heating, that ought to help.

I have ruined my first one running waste oil in it... I filtered it, mixed it 50/50, etc... Now it won't burn anything. I have 5 others, one has been running red diesel for a month straight. I use a cleaning additive every so many gallons. The pump needs to be about 15 to 30 degrees tilt output side up.

Lol....I burnt waste oil for years in a modified furnace. There is too much carbon and other solids in used motor oil, it will clog a Chinese heater in no time. But at least you will be able to make a clean out video.

I worked in a garage for a couple of years, we heated a 3 lift building with waste oil. Used an old homemade wood heater with a forced air blower, oil dripping onto an old truck brake drum. Also burned old transmission fluid and old gasoline mixed in. As soon as it got hot the exhaust burned completely clear without a trace of smoke. Fuel was gravity fed and drip was controlled by a small needle valve. As it heated up the drip got faster so you had to keep an eye on the temperature or it would began to glow, almost like looking at an X-ray. I wonder if I could mass market this system?

4 now ! You’re on a roll!

Thanks COOP ...

Your oil needs to be the same viscosity as diesel. So thin it with diesel or you could also thin it with gasoline. Gasoline is cheaper to mix since you need a lot less. I never did it myself but go watch anthonycooke27's videos about his truck running on engine oil.

Welp, I run both of mine on diesel (red/clear) and kero, and they run great. Running waste oil isn't a good idea and will foul the burn chamber. If you open that heater up I suspect you'll find it's not very pretty. Also, double or triple walled insulated exhaust would be a good thing. The pump needs to be on a 45 degree angle with the output facing up.

Anyone using waste oil for even an oil furnace designed for waste oil. Run it through a paint filter first!! Then glue neodymium magnets to the outside of your funnel to pour it into your machine! Trust me, fishing a forgotten drain bolt or rust or whatever out of a furnace tank sucks when it’s logged into the fuel outlet. Paint filters fit right in the funnel so its not as difficult as it sounds but will save headaches.

Ran mine on waste oil for a while. Main thing is you need to tune the unit for the fuel. On mine, I increased the minimum fan speed and lowered the max pulse rate. Ended up mistakenly using some used motor oil with some brake fluid in it. Ended up filling the burner with can only be described as concrete. With the Vevor, I have not seen any tuning instructions and their manual is poor.

Make sure that the pump is at a angle about 30 degrees this will help .all the best Jono.

I’ve been thinking about getting a diesel heater and lake with you, I want to run it off of used motor oil. So clearly it will work, but it doesn’t like it.

Mix old filtered cooking oil (if you deep fat fry food) at a 50/50 ratio too. In cold weather, I've heard people using 50/50 Kerosene/Diesel to keep the Diesel from thickening.

Just one thing on why are you getting the flame out. It is bicus it is putting too much oil in the chamber if you ran it on 4.4hz it will work fine

What brand HEATGUN do you have? Just curious I used to make a heatgun

Old style pan burner works well for old oil but not in enclosed small spaces. Got wood that needs weatherproofing like a trailer deck or fence posts? Probably the most use you’ll get from a 50/50 mix with diesel.

Used oil should be mixed with gasoline to make diesel, start at 10% gas to 90% oil and increase gas percentage from there. Research black diesel for more info

What's happening is that in line filter is probably clogged as all hell from the motor oil. Looks like it's pumping air, but it's really just pulling a bit of vacuum in the line.

where's the followup video with the new pumps? I wanna know if the pump was the problem and if waste oil will work

You can buy burners that are made strictly for waste oil, they are kind of expensive, but many truck shop's use them. Cheaper than having someone haul their waste oil off. Plus they can heat a shop very well, they use about one and a half gallons per hour.

At 17:50, it won't prime because the fuel pump is air-locked. You must mount the pump at an angle of at least 45 degrees with the outlet up, to get rid of air. Straight up with outlet up is best, because it gets all the air out. Air pockets in the pump are bad, because these areas are not lubricated, and can wear out fast. Another pump issue you are likely to get with this unfiltered oil is jamming up the pump. There are no O-rings in this pump. The piston is just an extremely close fit with the cylinder. Any little grit that gets through your paint filter could jam the piston, resulting in no oil, and a flame extinguished E-08 code.

I was a diesel mechanic for 15 years our trucks had espar heaters (same thing) we had to clean the carbon build off the burner thats with ultra low sulfur diesel you will have tons of carbon build up but its an easy job id definitely thin it with diesel.

Awesome video and I noticed a nm license plate in the garage 505 ?

ive read that 20% gasoline thoroughly mixed with the used motor oil (so it doesnt separate) is just about perfect to replicate fuel oil/diesel for furnaces and heaters and such. then dump it through a 1 micron filter sock to make sure it doesnt clog a nozzle.

Good testing. I subscribed....for the full "sheet rock repair the easy way" video, lol.

ive been planning on getting a diesel heater for my garage because i also have a s ton of waste oil

safest way: mount these outside under a makeshift shelter, route the heat tube(s) inside. Then it's less likely that a failure will burn the building(s) down. I have one.

About a year ago I saw a video on YT where a guy tested burning used oil. His final outcome to get the best burn was a 30% mix of old/used oil and 70% fresh diesel. I've not tried this but only speaking from what I've seen on YT. I look forward to your next video or sequal to this 😀

The cheap filters with 6mm inlets often have moulding alignment errors that let air in, as the whole feed is pure suction.

I seen you also have to put the fuel pump so the out is facing DOWN not up like they put it from factory and that helps the thicker stuff pump so it ain't trying to pump upwards, also you should thin out the oil a smidge like 30% diesel or something

I have run it very lean ratio, engine oil and diesel and it still carbons up. I wish I could share pictures of it all apart and what it looks like inside the burner, but it carbons up real bad

Look into real garage style waste oil heaters. Check on what they do differently. Don't reinvent the wheel. A local guy made the paper years ago running a diesel VW on filtered fry oil. Twin tank, started on diesel. Heat from cooling system went into a heat exchanger and preheated the used fryer oil. The preheated (thinned oil) then was switched on and the car ran perfectly. Maybe wrapping tubing around exhaust to preheat might work. Still need to preheat to get it running from cold start (heat lamp?). Better pump would be needed. Fire extinguisher would be a great idea. Keep trying, don't burn your place down. Good Luck!

Why am I not surprised the unit says 'no'...I'm guessing the unit has a jet that is set for the viscosity of diesel so a further guess is that you need to blend and or heat what ever fuel you chose so it matches that viscosity or near enough for it to cope. Perhaps changing the tank for a metal one with a thermostat controlled heater in it could be a good start and replace the hopeless fuel hoses with something heat resistant. Also there's a ton of waste heat lost via the exhaust that could be used. Either way for the money they'd pretty good but seeing the built quality I too have bought a spare!

thanks for the info. helps me not to make certain mistakes. sorry for your failures. again thanks!

Filter the oil and put like 20-40% kerosene (cheaper than diesel) in it. Then do it again!