Diesel heater explained by a Licensed HVACR Technician. installing and operating

[@waldo197720]

Well this answers the age old argument about taking fresh air from outside or drawing stale warm air from inside. I like the car turbo analogy, I’ve got mine drawing cold air from outside. Great video

[@Scottiegillespie]

I'm super happy you enjoyed it . Thank you

[@Dave5843-d9m]

Mine draws combustion (fresh) air from inside and exhausts to outside via an existing chimney that is otherwise blocked off. The heated air is drawn from and returned to the room just like any other heater. Not using external air for combustion is less efficient. However the construction of my house means there is no other practical way. It’s not unsafe. It’s simply less than optimal.

[@backyardcyclist4377]

Great stuff, as always. It all makes perfect sense. ❤

[@mannylulo]

I love your videos, congratulations.

[@Scottiegillespie]

Thank you so much ! Glad you liked it

[@wvwildlifecam9159]

well said. Been looking at these things for a number of years but when the prices dropped I just had to get one to try out. An I do not have anything negative to say about them. Will make a great backup heat as long as you can keep it powered.

[@Scottiegillespie]

It's a great backup for sure . Enjoy it !

[@JeepinMaxx]

Thanks for the video! I was running mine all last winter incorrectly - I was taking combustion air from inside my building (an old barn). I figured no problem because I my barn is far from air tight. I didn't take into consideration cold air for combustion. Plus drawing inside air burns anything in the air like sawdust and aerosols from finishes and paint. I'm going to follow your suggestions for outside combustion intake and the spacing you recommended. Hope to get more BTU's out of it this winter.

[@Scottiegillespie]

So happy you found it helpful . Yes, that's also a great point about anything, but clean air is getting pulled in also

[@bobbingman8610]

Awesome video thank you

[@Scottiegillespie]

I'm happy it was useful. Thank you

[@stevehopper6068]

Thanks for the video. Would have been very helpful if you had put links to the key components.

[@Scottiegillespie]

I'm happy it could be of help . In my older video, the links were provided. 👍

[@spiki_x6863]

A practical solution to cover the current spikes is to use a lead acid battery in parallel with a weak power supply. Can be a bad, out of service from your car. It will still do the job.

[@mannylulo]

Hello, greetings. Could you make a video where you give a tutorial on how to enter the display settings. For example, setting the time and making all the settings for the Vevor heater. Thanks.

[@Scottiegillespie]

I'm actually going to look into finding a better controller. One that isn't so confusing. If I do and figure it out , I absolutely will do a video on where I found it and how to use it .

[@mannylulo]

@@Scottiegillespie thank

[@charliemagoo7943]

​@@Scottiegillespie I ordered a manual control box in case my electronic one quit

[@mistersniffer6838]

If your dating yourself, dont forget to bring yourself some flowers!!

[@Scottiegillespie]

😅 lol

[@MichaelAChang]

The video should make a clear distinction between "combustion air intake" and "heat exchanger air intake".

[@forlornfool221]

Hcalory (TB2) toolbox 2 arrives tomorrow ty for the info! Peace out home slizzeler 😂

[@Scottiegillespie]

😅 that's awesome . It's a good heater, for sure. Enjoy home toast . Lol

[@forlornfool221]

@Scottiegillespie got her all set up and working perfectly! Damn fine machine despite the outer casing is flimsier then had hoped..

[@chadperry5985]

Hey buddy I was thinking into getting a diesel heater, probably the vevor because it’s the best seller the furnace in my pop up camper went out and it’s too pricey to replace my only concern is the pipe it comes with is too short as I looked up vent pipes I ether saw the temperature rating is too low or they give off an odor was wondering what you would recommend for a safe replacement pipe I would like to fish it in threw the canvas and keep the heater outside

[@Scottiegillespie]

Hey Chad, I picked up a 25 ft length of 4 inch flex and cut down to my length needed which was about 6 ft . Got it on Amazon. You could also grab it at Home Depot or hardware store . I wouldn't go much more than 10 ft max because the longer you go , you run the risk of the heater faulting out on a High temperature error code . Hope this helps

[@florihae]

How do you judge the topic of exhaust pipe slope with a mobile diesel heater? I use mine for camping and have the exhaust via 180° bend pointing upwards. After every use, I remove the exhaust pipe for easy storage. My idea was, while the heater is running, the condensation will only happpen while the exhaust pipe is cold. The bit of water will evaporate once it is at operating temperature. Do you see any problems here? Do you see any problems with shortening the exhaust to approximately 8inch including a single 90° bend?

[@Scottiegillespie]

It will absolutely condensate in that scenario. Absolutely keep the pitch down from beginning to end . Dosen't have to be much . Just slightly out of level . Hope that helps

[@Scottiegillespie]

And the length dosen't matter . Short exhaust is better than long. If it's really long , pitch down a bit more

[@florihae]

@@Scottiegillespie at the moment I use the generic stainless exhaust that comes with the unit. And at the end I have the straight pipe muffler (which makes a huge sound level difference for me) I installed feet to the unit today, so I can have a constant slope downwards. And indeed, while testfiring there was some condensation under the muffler! I might just keep it as it is then, seems to work very well. Thank you for this informative video!

[@Idonthaveahandleok]

where did you get the vent flashing to run the exhaust outside?

[@Scottiegillespie]

Found it on Amazon. Description is in the more on my video 👍

[@bookoobeans]

This video is correct, but here is still massive confusion showing up in the videos people are posting. It seems people are super confused about the word "intake" and putting their return air intake for the blower fan outside too (or instead of the combustion intake)! That is NOT what this hvacr expert is saying to do! For those that don't know this: There are two air intakes. One for combustion air, a different one for the cold air air that will be heated, ie. the same air that will come blowing out the front of the unit. Two separate loops, each with their own "intake" and "exhaust", this is the whole purpose of the exchanger, to transfer heat without breathing combustion air. So you *want* the return air vent to be in your heated space, same way your forced air furnace is set up in your house! The air you breathe gets recycled through the non combustion side of this heater.

[@todddunn945]

Exactly.

[@kablong9269]

Hi can I vent this on my garage door?

[@bookoobeans]

Bad idea -- the door is in motion and will flex/weaken your exhaust pipe causing exhaust leaks in your heated space.

[@Scottiegillespie]

Absolutely. Just buy the diesel heater wall termination piece . Stainless. Obviously, the door must be shut when in use

[@nickabel8279]

Not before but my diesel heater Bluetooth only works about 10ft. Pretty disappointing...

[@Scottiegillespie]

That's definitely unfortunate. Mine just began having trouble connecting. Amazon does sell replacements .

[@nickabel8279]

@Scottiegillespie when it's brand new it shouldn't need a replacement. Amazon did a refund so I'm looking into other brands but having a really hard time finding any reviews mentioning Bluetooth distance... Some of these heaters are claiming almost 300ft Bluetooth connection

[@dougholst6753]

Obviously you do not live in a "cold" climate. Your motor will cease to function at about -25C. I have spent many late nights replacing my motor after I was woken up by a low temperature alarm in my shop. A brand new motor would only last a few hours then it would start to howl and then stop all together.

[@Scottiegillespie]

Interesting. I have camped for multiple days in negative 5 degrees Fahrenheit . Never had an issue.

[@icemanice9253]

Scottie can u let the clan know when u log on coc, im muted me for 2 days. Probably because I talk good about trump. Ice

[@Scottiegillespie]

Lol. Okay buddy

[@todddunn945]

I have a couple of comments. First, what you are calling an inverter is actually a DC power supply. An inverter converts DC to AC NOT the other way around. Second, rather than try to use one of those expensive "power stations", simply buy a 12 VDC battery. A 50 amp-hr battery will do the job very nicely and will have sufficient surge capacity to start the heater with no issues. If you are traveling with it I would suggest a LiFePO4 battery. A Li Time or Redodo battery will set you back around $110, but it will do the job well with no extra wiring or other gadgets. You were a bit unclear about the fuel. Home heating oil is untaxed as is off road diesel. The untaxed fuel is dyed red. Road diesel from your gas station is undyed and has road tax built into the price. Locally here on the Maine coast, gas station diesel is about the same price as off road diesel/heating oil. Another factor is the sulfur content of the fuel. Gas station diesel is always ultra low sulfur (15 ppm sulfur maximum). Depending on where you live off road, untaxed, red dyed diesel/home heating oil may have a much higher sulfur content (up to 4,000 ppm). If you live in a part of the country where it is legal to sell higher sulfur off road diesel/home heating oil, you will be much better off buying undyed gas station diesel fuel. The sulfur in the diesel gets exhausted as various sulfur oxides AND sulfuric acid. A high sulfur fuel will produce much more sulfuric acid in the exhaust which will eventually destroy your exhaust tubing, As far as air intakes go, diesel heaters of this type have two air intakes. One is for heating air that goes through the heat exchanger and out the heating duct of the heater as hot air. You can draw this air from inside the the space you are heating since it is just recirculating inside air. The other air intake (the smaller one) is for combustion air and you should draw that in from outside since that is the air that goes into the burner and will be exhausted with the combustion products. Combustion air does not go through the heat exchanger. You can draw combustion air from inside the heated space, but as you mentioned that will cause cold air to drawn into the space via cracks, etc. Using inside air for combustion will be marginally less efficient because outside air will be colder and colder air is slightly higher density so the oxygen content of the colder outside air will be slightly higher than warmer inside air. The higher oxygen content will increase combustion efficiency. Also, since the combustion air intake goes directly into the combustion compartment, drawing it from inside the space will let some exhaust gas into the space after shut down. Your comparison with a vehicles turbo was incorrect. Combustion air that goes through a turbo is actually hotter than ambient air. It causes more efficient combustion because it is at higher pressure and thus has more oxygen per a given volume than ambient air. A turbo is an air compressor driven by exhaust gas flow. Compressing air heats it up and there is also heat conducted into the combustion air from the hot exhaust gas.

[@Scottiegillespie]

Great information. Thank you