Vevor diesel heater backfiring

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Күн бұрын

In this video I play around with the Vevor 2 kilowatt diesel heater trying to figure out why it is backfiring. #2kwdieselheater #dieselheater #vevor #chinesedieselheater #diy #heater

Пікірлер: 83

@spyguy7007 5 ай бұрын

as a few other comments have said, your exhaust has collected moisture(water) in the bend, exhaust can't vent properly pass the clog, therefore the backfires. Venting upwards doesn't help prevent moisture from collecting. All moisture in the exhaust pipe must vent downward according to gravity.

@Moes_Adventures 5 ай бұрын

Yes I have since put a short horizontal exhaust on it now, there was no moisture in there at the time of recording but i was a contributing factor. The other thing with the smoke was a fuel pump issue.

@Rstpete1 Ай бұрын

Nice tip on the air intake. I'd try cutting bars out of the cap until you can no longer detect an air flow difference. I will be doing that.

@studio_w 5 ай бұрын

Great video and thanks for sharing. I have two units but none installed yet! Anyway, I think you can improve on your fuel consumption. Here are my thoughts: 1) Your combustion air inlet from what I see is on the inside of your shed and should be outside with the exhaust - make sure the exhaust is not pulled in by this inlet. HAving this inside creates a negative pressure (slight vaccuum) on the inside forcing cold outside air in through the gaps to replace exhaused air. This keeps the room cooler. 2) You are using your warmed air to burn the fuel which means you need to keep heating the inside air since it's being consumed. As per point 1 above, that cold air needs to be heated consuming more fuel. Unless I've missed something, I believe points above should make a difference in fuel consumption for the better. Would be good to see a follow-up video 😀

@Moes_Adventures 5 ай бұрын

Currently uploading a video addressing these things, thanks for watching! It has been fun playing around with this heater and I am very happy with it now that the kinks worked out of it😁

@studio_w 5 ай бұрын

@@Moes_Adventures great stuff! Looking forward to the follow-up videos 😉

@biomechanique6874 5 ай бұрын

Moe, your problem was that you had the exhaust pipe angled upwards outside - that is a no-no because it collects condensate. Your fix cured it but by accident, not through knowledge. RTFM.

@SuperDirk1965 5 ай бұрын

Some really very short bends in the exhaust as well. Mounting the controller pretty close overhead the exhaust is the reason the temperature on the controller is way higher than the temperature in the shed.

@Moes_Adventures 5 ай бұрын

Yes, I hadn’t considered the condensation factor. I also noticed when I took the 8kw unit off to swap out for this 2kw, the exhaust had some little pellets of carbon buildup. The short horizontal exhaust should helped, but it was still smoking on startup, i found the fuel pump being mounted below the heater was contributing to that.

@Moes_Adventures 5 ай бұрын

@superDirk1965 thats a good point also, I will have to rework that pipe to be a more gradual bend.

@ericgilhart5951 5 ай бұрын

Holy hell put the exhaust pipe down that's no good

@alexandercarey3456 4 ай бұрын

2 Problems tank hight & condensation in the exhaust. Exhaust makes water like a car. As it cools condensation comes out of the exhaust and can block the exhaust pipe if it travels upward. Fuel can slowly leak past the pump when not being used due to gravity filling the button of the burn chamber and into the exhaust pipe. Place your fuel tank so the top of the tank is lower than the bottom of the heater.

@johncollinsgrove1750 5 ай бұрын

Honestly the pump is likely bleeding some fuel due to height of the fuel tank. So basically flooding the chamber with fuel and then when you fire it up it is ignitting the excessive fuel. Try to lower the tank and retest.

@Moes_Adventures 5 ай бұрын

This was exactly what was happening. My thought with having it set up this way was going to remove any air from the fuel lines, and that did work, but as a result it caused too much fuel in the combustion chamber. I moved the fuel pump and made a drip loop with the fuel line and that solved the problem.

@johncollinsgrove1750 5 ай бұрын

@Moes_Adventures some air in the line don't really matter. Generally will work it all out on its own. Putting it on high speed for a few minutes will usually remove almost all the air. But wouldn't worry about it. But I double checked my install instructions and says the tank should not be mounted higher than the heater.

@philipreich7035 5 ай бұрын

Thanks for the video. I'm also figuring out this stuff, and it looks like the bluetooth version will work best for me as well. Will look to see if you find a source for the controllers.

@Moes_Adventures 5 ай бұрын

Yea the Bluetooth version is much better. I definitely recommend! I still haven’t looked into a source for outfitting my old heaters with the new controller and motherboard

@Notsoshadyacres. 5 ай бұрын

I really enjoyed the master key. I think you have a good solution for your requirement there. The only thing I could suggest to make it better or more energy efficient (if it would) is to try and gather the air from the ceiling and blow it out down low. Moving air keep things warmer better than still air. But the shed looks small enough that may not need to be designed into this application. Good job!

@Moes_Adventures 5 ай бұрын

Yea I am considering doing the pipe up to the ceiling. It would help circulate the air while it’s running.

@Notsoshadyacres. 5 ай бұрын

Another thing I noticed is the first 3” that it used up there is less fuel there than in the next 3” due to that bolt in the fuel tank. So it will be interesting to see how long it will run on a full tank. Which I assume is about 15 litre.

@Moes_Adventures 5 ай бұрын

Haha yea i realized that also. Unfortunately it was after filming and all the film crew left😂 the tank is 10 Litres, it has been running for the last 8 days, set to 8°C and has half a tank at the moment

@coreybabcock2023 5 ай бұрын

I just wrnt out to my van and i took that thing at the back of the heater and cut the grill out and screwed it back on and it does have better air flow now

@Moes_Adventures 4 ай бұрын

It’s definitely an improvement without that screen!

@coreybabcock2023 4 ай бұрын

@@Moes_Adventures sure is

@Ralphs-House 4 ай бұрын

As others have said, moisture/water in exhaust.

@fisherkieds6282 4 ай бұрын

Put it into high altitude mode,it works like a champ

@matteoschiatti8691 5 ай бұрын

Hi! Nice video! I'm thinking to switch to the new model too, do you know what the differences are? Could you also tell me if the hot air outlet pipe of the 2kw is the same as the previous one? 60cm

@Moes_Adventures 5 ай бұрын

I wouldn’t be able to give you accurate information without having owned the previous 2kw model, regarding the difference. I will do some research and get back to your comment. As for the outlet pipe, the diameter is 76mm or 3inches and yes its 60cm long when extended.

@matteoschiatti8691 5 ай бұрын

@@Moes_Adventures Thanks a lot, in the previous 2kw version the diameter of the outlet pipe is 60mm, so that means I would need to get all new adapters for the new one, I'm wondering why they have used a different diameter for the new 2kw

@Moes_Adventures 5 ай бұрын

@@matteoschiatti8691 thats a good question. Possibly for better air flow.

@MandeepPreeSINK 4 ай бұрын

Sounds like she be hitting the rev limiter in the Walmart parking lot at 11pm on a Tuesday in Nova Scotia XD

@Moes_Adventures 4 ай бұрын

😂😂

@MandeepPreeSINK 4 ай бұрын

Oh.. the air intake to the burn chamber need to be outside to avoid negative pressure is it? I’ve seen that mentioned in other videos..

@Moes_Adventures 4 ай бұрын

Yea that’s correct. And it did help retain more heat after i routed the intake air hose to the outside.

@MandeepPreeSINK 4 ай бұрын

@@Moes_Adventures awesome! Good to hear that worked out

@jasonlucas8740 5 ай бұрын

Yeah. It's because the exhaust is pointing up.

@dbrown6936 5 ай бұрын

Hey Moe . Another interesting thing is the fuel pump mounting, you've got the right angle (or very close) but you must not have a lower loop after the pump. Air bubbles need to feed up in a constant fashion in order to have a proper fuel to air ratio. This will help start ups and sooth build up. Have a great day.

@Moes_Adventures 5 ай бұрын

100% correct, that was the cause of the backfire and smoke. Moved the fuel pump up higher and gave it a bit of a drip loop. Did that on my last video i uploaded although, in the video i didn’t elaborate very well on the matter lol

@coreybabcock2023 5 ай бұрын

I use a 5 gallon gas can for my fuel tank and the fuel is pulled from the bottom of the can and the pump is higher than the can and heater no excess fuel seepage past the pump or anything and my exhaust is only 1 90 degree bend and angled downward it works like a champ

@Moes_Adventures 4 ай бұрын

I think im going to rig up something like that also. A jerry can has a better sealing cap too for using it in a vehicle.

@coreybabcock2023 4 ай бұрын

@@Moes_Adventures wish I could send a picture of my setup

@Moes_Adventures 4 ай бұрын

Post a video to your KZfaq channel and reply to this comment letting me know. If you want to..

@174iceman 5 ай бұрын

did you figure out what was making it backfire? ? I have the same brand of heater ran OK for first few days now it blows a lot of white smoke and backfiring

@Moes_Adventures 5 ай бұрын

The exhaust being pointed upward outside was contributing to it, although it wasn’t backfiring with the 8kw. The smoke was from the fuel pump being mounted below the heater, this caused a bit of a syphoning, resulting in too much fuel in the combustion chamber on startup.

@carlos_sacalul 3 ай бұрын

Put the exhaust in down position and intake must be outside where the air in more oxigen rich. Cheers

@kevin34ct 5 ай бұрын

My heater did that. I took the exhaust off the heater and there was water in the exhaust pipe. After I emptied out the water it ran fine.

@Moes_Adventures 5 ай бұрын

Yea some people are having issues with condensation when the exhaust cannot drain properly. I had the one exhaust tube pointed upwards for the video, but it was backfiring before i put the pipe on. That being said, I became well aware from all the comments of the condensation issues that could result lol

@kevin34ct 5 ай бұрын

@@Moes_Adventures I found this out on a new heater. It was only the second time running it. It tried to start then backfired. I only know there was water because there was water coming out from the bottom of the machine through the intake pipe. My exhaust faces down outside the house, but we had a really windy rain storm and I thing some of the rain got blown up into the pipe.

@martypeterson6563 5 ай бұрын

Almost sounds like a air leak in the unit, as for the intake air I have a outlet air tube running up the wall to the highpoint of my roof to recirculate air and lets me run it on low all night but I am running 3 of these units, I also have a Bluetooth unit from Vevor 5KW all my units are Vevor, I asked them for the motherboard and controller for the bluetooth units but they said they couldn't do anything for me LOL.

@Moes_Adventures 5 ай бұрын

Hmm well it sounds like i may not be able to convert my two older models to the new style. I am considering installing a tube up to the roof and I have pointed the hot air pipe towards the floor. Real time update, this heater has been running for 8 days now with ambient temperature of -3°C during the day and -7 at night with the heater set at 8°C and i have only burned 5L of fuel. Now that it only runs as needed, it is amazing on fuel consumption!!

@bobbailey7024 5 ай бұрын

What is the current draw on startup? Typically it should be about 10 amps at 12 Volts. If the current is insufficient the glow plug will not get hot enough. The current draw should reduce after it starts.

@Moes_Adventures 5 ай бұрын

The amp draw on startup was 7amps.

@bobbailey7024 5 ай бұрын

@@Moes_Adventures Probably not enough. 7A at 12V is only 84 Watts so the glow plug isn't getting hot enough whilst the pump is still pumping fuel, which would account for the white vapour and probably the backfire when it does ignite. I believe it needs to be about 100Watts or slightly more. Are you using a battery or a transformer and what is the volt drop when you first switch on? It could also be a faulty glow plug. Can you check its resistance? (I am a motor technician by trade but many years ago).

@Moes_Adventures 5 ай бұрын

@@bobbailey7024 i used a power supply for testing the amp draw. It was 7amps at 13.8volts. Ill have to check it again to be sure. I wonder, do you think it matters that it is a 2kw output unit. Most videos i have seen, people say it should draw around 10 amps on startup, but that is with 5 or 8kw units.

@bobbailey7024 5 ай бұрын

@@Moes_Adventures I don't think it matters that it is a 2kW heater - it still has the same glow plug as the 5 and 8kW heaters. You need 12v and 10 amps to give the 120 watts to heat the glow plug to a temperature high enough to ignite the diesel vapour (12V x 10A = 120W) irrespective of the output of the heater. At 13.8v, assuming no voltage drop when the current (amps) load is applied, you would need 13.8 volts x 8.7 amps to give 120 watts. The 2, 5 and 8kW refers to the heat produced by the combustion of the diesel. The more fuel burned, the higher the output. This is regulated by the amount of air and fuel in the combustion chamber. For example, my central heating boiler burns gas, but its output heat is 7kW. Try connecting your heater to a fully charged12v car battery. The glow plug will only take the current it needs due to the resistance and these heaters are designed to run off car batteries. Probably your best option is to have a 12v car battery on trickle charge and the battery connected to the heater. The battery will have the required voltage and more than enough capacity to run your heater. If there's a power cut, the heater will still work, and not suddenly stop working when really hot, but the battery will slowly discharge. Get back to me if I can help you further. PS Ensure you connect the polarity correctly.

@Moes_Adventures 5 ай бұрын

I will definitely try that and have a meter hooked up to measure the current. I appreciate your information! Thank you!!

@linearburn8838 5 ай бұрын

Idealy you would 3d print a new cover

@Moes_Adventures 5 ай бұрын

Yea that would be nice. I ended up just using a zip tie

@JasperMaakt 3 ай бұрын

3:45 that’s the sound of all kinds of vapor / condensation blocking your exhaust… maybe you should read the manual again and put the exhaust horizontal

@WiLLiAMOnline 5 ай бұрын

You need a gradual slow downwards ideally.. if you can use a slow curve rather than an abrupt 90 bend - it will collect water in the bottom and cause back pressure bad burn issues - why have you turned it up outside so it's vertical? *that's a NO NO

@Moes_Adventures 5 ай бұрын

The pipe outside was a spare pipe i had and pointed it up to show the smoke and backfire puffs. I took it off after and made a short coupler with it and attached the muffler horizontally. Im planning to make the bend on the inside more gradual, but i also want to upgrade it. So im currently sourcing a higher quality exhaust pipe

@cwoll2925 5 ай бұрын

see if the blue tooth controller will work with the other units you might be albe to just buy the controller

@Moes_Adventures 4 ай бұрын

Im going to take it apart one day and see if the wires are the same and test it.

@StratOvation 5 ай бұрын

Yet another diesel heater video of someone sourcing the combustion air from the heated space, I just don't get it? why you would want to pay to heat the air, then consume that heated air through the combustion chamber, forcing cold air to be drawn into the heated space constantly seems to be a very inefficient setup. your exhaust needs to be routed horizontally or downward so condensate can drain away. you may want to swap out that crap green tubing for some 2mm rigid nylon fuel line. You could try relocating the controller off to the side, so it isn't directly above a heat source for a more accurate temp reading. There is a great library of information on these heaters on John McK 47 channel kzfaq.info/get/bejne/qtynoLiQqMnRd30.html by the way, I just seen a 5 year update review of one of these heaters.If you pop the top on your 8kw unit, you'll see it is identical to your 5kw, just a scam to get folks to pay a premium for the same unit.

@coreybabcock2023 5 ай бұрын

Shouldn't have the exhaust pipe that long and pointed up

@energymarketchile 5 ай бұрын

Wrong setup (exhaust muffler). It needs to be horizontal, with the little water evacuation hole down, or pointing in the opposite direction...

@Moes_Adventures 5 ай бұрын

Ill have a look for that water hole

@jamesscutt1969 3 ай бұрын

Water in the exhaust

@oo9467 2 ай бұрын

To much fule I had same problem lower you fule tank

@user-jp2lq4df2o 5 ай бұрын

Exhaust looks wrong pointing up and in a u shape... my 2 cents

@Moes_Adventures 5 ай бұрын

Yea i have since removed that and put on a stub from the through wall pipe straight into the muffler. So it’s exhausting horizontally. I still have to rework the pipe inside the shed to be more of a gradual bend.

@bikerboymc54 5 ай бұрын

Air intake should be outside

@Moes_Adventures 5 ай бұрын

Yea i changed it in the next video

@dougshedshop 5 ай бұрын

I bought same unit they are not good unit. Very noisy and it uses a lot of fuel I ordered and installed a 3kw uses less fuel and a lot more quiet and less energy

@Moes_Adventures 5 ай бұрын

That’s unfortunate you had a bad experience with the 2kw unit. After getting the backfiring solved I am happy with it. Although our winter has been mild so far, I am impressed with the fuel efficiency, it’s been running in the shed for the last 18 days without having to top it up. It is set to 8°c, an average outside temperature of around 0° daytime and -7° / -10° overnight. Im sure what will change significantly when winter eventually comes 😂

@MrLocomechanic 4 ай бұрын

Ever heard of not reinventing the wheel! 🤦‍♂️ those “grates” on that cap are designed to only allow X amount of air flow FOR A REASON! If it doesn’t run right send it back and have vevor replace it.

@jamesscutt1969 3 ай бұрын

Take the muffler off