Every litre of diesel burnt will create a litre of water (as steam) plus a smaller amount of waste products such as tar. By cooling the exhaust the steam will convert back into water while it is still inside the pipe extension you fitted so it might be a good idea to run your heat capture device on a slight downhill gradient.
@@slarratt No. Efficiency is a measure of energy availability (i.e. in this case, how much of the energy released from the diesel burning was released into the room as heat). As unbelievable as the figures sound, @rhiantaylor3446 is correct - under ideal circumstances one litre of diesel (weighing 835g) produces 1035g of water (and 2640g of carbon dioxide). 1000g of water is 1 litre. This is because of the weight of the huge amount of oxygen that is required to make the diesel burn. Two molecules of diesel react with 37 molecules of oxygen to produce 24 molecules of carbon monoxide and 26 molecules of water.
If you put your fan to other end, it will be more efficient. It becomes crossflow heat exchanger then. For all pipe length there is bigger temperature difference in crossflow configuration and you extract more heat. Edit: counterflow, not crossflow
@@adventcliff2040 Both ends are already in your room - so if you have exhaust leak somewhere inside room or inside heat exhanger, smoke is inside anyway, vent direction does not matter.
This sounds like a good idea, The fan will cool down the exhaust pipe, but the air flow at the end of the pipe will be hotter as it's only just left the heater. (If this makes sense)
Nice exsperament...... Yes it is a very high lose of heat..... As IV got my exhaust, straight out shed to out side.....so I'm loosing shit loads of waisted heat... Regarding those that say NO.... ect It's chaps like you that improve things and evolve the workings of stuff.
Yep! Counter flow heat exchangers are more efficient than parallel flow. An open weave thermal conductive material (loose pack steel wool?) around the 1" pipe will help transfer more heat to the air.
Raising the heater up so you would have a natural draft plus putting the fan at the other end. Be careful the more modification the more risk, small as they may be.
I'm in the process of creating a very similar setup in my outbuilding - inspired by your vids! I'm planning to run the airflow in the opposite direction for hopefully greater efficiency and I'm using a 200mm pc fan which is quieter than the heater motor
Use two or more 2m long exhaust pipes and create a three flow pipe (two bends & three straights) inside that larger ducting. That will give much more surface area to extract the heat.
Andy if that power supply is the same as mine , it has a voltage adjustment dial on the left by the power terminals. If you use the psu and reduce the voltage to the 12v fan it will operate slower. Alternatively get an old usb lead cut the head of it and use the red and black (thats the power) and wire that to the fan and it will operate at 5 volts when plugged into a usb socket
You could try to connect that tube to the inlet of your heater, so it will preheat the air going through the heater making it more efficient. You would not need the fan anymore either.
It could make the heater less efficient. Warm air is less dense than cold but the same volume will be sucked into the heater, ie less mass, chemical reactions (such as burning) work on mass not volume. Also by messing with the air temperature you could adversely affect the fuel/air mixture.
Copper pipe is not recommended for use as an exhaust pipe, even though it could technically conduct exhaust gases. Exhaust gases contain compounds like sulfur and carbon monoxide, which can react with copper. Sulfur easily forms copper sulfate with copper, which can corrode the pipe over time. Additionally, exhaust gases are very hot, and copper softens or may even become damaged under prolonged high temperatures, which weakens the durability of the pipe. Materials commonly used for exhaust pipes include steel and stainless steel, which are better suited to withstand both the high temperatures and the chemical composition of exhaust gases.
Brilliant mate. Nice and easy. A variable speed fan would do better. I bought these variable speed blowers off of eBay that would do the trick. Also you are getting colder air from the floor and heating it up back towards the floor.
Now thats a smart idea! Have you got a thermometer to see what heat is coming out out? Wondering if a lower powered fan would move the air slower through the pipe and lessen the cooling effect.... Sounds quite a powerful fan and would cool the internal air as its pulling in cool air from the garage? Just a thought! ☺
Had a thought dh can damage if electric fails in storm because it takes about 4 minutes to shut down so back up power needed battery obvious but wiring?
Hi mate I fitted heater in my shed attached to the hause . done hole in the wal to blow hot air to the 16m2 livingroom - is not noizy in side . Im used exhaust to heat air like u but exhaust pipe is in the steel pipe and this all is in the aluminim spiro pipe.... ) air goes to heater (air inlet - don't need extra fan ). When out siede is 0 deegres then this idea giving me extra around 20 degress celcius on air inlet and on air oulet is over 100 celsius on lowest setings - speed pomp 1.4hz. Without this idea whan is 0 deegres then heater blowing only around 75 celsius on lowest settings
I've watched lots of your videos trying to make use of the exhaust heat. So far what do you think has been the most effective at trying to use this? Every time I think I want to try this you come out with a new way lol
hi seen lots of your videos and was wondering which do you think, is the best at getting the heat out of the exhaust ? thank you for your time that you put in to these videos jon
Hi Andy, have you had any trouble with the fuel pipe on the heater because I’ve seen a few videos where they have changed the fuel pipe. Many thanks Stu
One question is are you extracting more heat than was being radiated by the bare exhaust, or just using electricity to blow that into a different place? Monitoring the external exhaust temperature outside the house with and without would be a good way to tell.
You can use used car oil and add ten percent diesel or crosene, then add 130 percent water, but the water must be ionized, then put the entire amount in a blender until the color of the milk becomes white. Of course, it is preferable to filter the used car oil before using it, and the best thing is to use the centrifugal process with a strong magnet. You will have a very clean combustion and it will burn 100/💯 without the device being clogged from the inside by carbon, and the exhaust will also be clean and the amount of fuel will double by adding ionized water.
Every litre of diesel burnt will create a litre of water (as steam) plus a smaller amount of waste products such as tar. By cooling the exhaust the steam will convert back into water while it is still inside the pipe extension you fitted so it might be a good idea to run your heat capture device on a slight downhill gradient.
Diesel burns 1 litre to get 1litre of water? 100% efficiency?
@@slarratt No. Efficiency is a measure of energy availability (i.e. in this case, how much of the energy released from the diesel burning was released into the room as heat).
As unbelievable as the figures sound, @rhiantaylor3446 is correct - under ideal circumstances one litre of diesel (weighing 835g) produces 1035g of water (and 2640g of carbon dioxide). 1000g of water is 1 litre.
This is because of the weight of the huge amount of oxygen that is required to make the diesel burn.
Two molecules of diesel react with 37 molecules of oxygen to produce 24 molecules of carbon monoxide and 26 molecules of water.
If you put your fan to other end, it will be more efficient. It becomes crossflow heat exchanger then. For all pipe length there is bigger temperature difference in crossflow configuration and you extract more heat.
Edit: counterflow, not crossflow
Hello. I'm thinking if you put fan other end it will blow exhaust gas back in to room. Am I right.
@@adventcliff2040 Both ends are already in your room - so if you have exhaust leak somewhere inside room or inside heat exhanger, smoke is inside anyway, vent direction does not matter.
This sounds like a good idea, The fan will cool down the exhaust pipe, but the air flow at the end of the pipe will be hotter as it's only just left the heater. (If this makes sense)
@@adventcliff2040the exhaust is sealed and vents outside. The heat from the exhaust is heating the ducting, the fan blows the heat around the room.
Good idea
Nice exsperament......
Yes it is a very high lose of heat.....
As IV got my exhaust, straight out shed to out side.....so I'm loosing shit loads of waisted heat...
Regarding those that say NO.... ect
It's chaps like you that improve things and evolve the workings of stuff.
cheers mate
Run the other way or allow the heater to use the air heated by the exhaust. You want low temp to high temp.
Yep! Counter flow heat exchangers are more efficient than parallel flow.
An open weave thermal conductive material (loose pack steel wool?) around the 1" pipe will help transfer more heat to the air.
Raising the heater up so you would have a natural draft plus putting the fan at the other end.
Be careful the more modification the more risk, small as they may be.
Best way to reclaim the heat yet!
thank you my friend.
did you see my other heater videos: www.youtube.com/@andyfireblade
let me know what you think
cheers andy
I'm in the process of creating a very similar setup in my outbuilding - inspired by your vids! I'm planning to run the airflow in the opposite direction for hopefully greater efficiency and I'm using a 200mm pc fan which is quieter than the heater motor
Good luck!
Brilliant information love the channel
Much appreciated
Use two or more 2m long exhaust pipes and create a three flow pipe (two bends & three straights) inside that larger ducting. That will give much more surface area to extract the heat.
Andy if that power supply is the same as mine , it has a voltage adjustment dial on the left by the power terminals. If you use the psu and reduce the voltage to the 12v fan it will operate slower.
Alternatively get an old usb lead cut the head of it and use the red and black (thats the power) and wire that to the fan and it will operate at 5 volts when plugged into a usb socket
Get a real duct fan, connects to the pipe. No idea about the noise of those, but since they are built to be used with ducting, I guess they be good.
yes that would be good,
did you see my other heater videos: www.youtube.com/@andyfireblade
let me know what you think
cheers andy
I was thinking of doing the something with a 6ft to 8ft piece of hot water baseboard as it has fins to dissipate to heat off. thanks for sharing
Sounds great!
You could try to connect that tube to the inlet of your heater, so it will preheat the air going through the heater making it more efficient. You would not need the fan anymore either.
That's exactly what I was going to say, and then fan speed varies with heat output automatically too 👍
It could make the heater less efficient. Warm air is less dense than cold but the same volume will be sucked into the heater, ie less mass, chemical reactions (such as burning) work on mass not volume. Also by messing with the air temperature you could adversely affect the fuel/air mixture.
@@rogerbarton1790 the air for combustion has its own separate intake. Just talking about the intake for the heat exchanger here
@@ericcamolinos3740 Ah - I thought he was talking about the air intake for the burner.
I'm planning on doing something similar, except with a copper tube for the exhaust to aid in heat transfer and a length of 3" car exhaust pipe.
Copper pipe is not recommended for use as an exhaust pipe, even though it could technically conduct exhaust gases. Exhaust gases contain compounds like sulfur and carbon monoxide, which can react with copper. Sulfur easily forms copper sulfate with copper, which can corrode the pipe over time. Additionally, exhaust gases are very hot, and copper softens or may even become damaged under prolonged high temperatures, which weakens the durability of the pipe.
Materials commonly used for exhaust pipes include steel and stainless steel, which are better suited to withstand both the high temperatures and the chemical composition of exhaust gases.
Definitely need a slower fan.
Brilliant mate. Nice and easy. A variable speed fan would do better. I bought these variable speed blowers off of eBay that would do the trick. Also you are getting colder air from the floor and heating it up back towards the floor.
That's very interesting so can't wait to see what ideas people have toake it a bit better and may just useing a fan with less noise
Now thats a smart idea! Have you got a thermometer to see what heat is coming out out? Wondering if a lower powered fan would move the air slower through the pipe and lessen the cooling effect.... Sounds quite a powerful fan and would cool the internal air as its pulling in cool air from the garage? Just a thought! ☺
Great idea
Very cool.
For heat, you want the fan to run at a lower speed than High , it will cool your heat exchanger too fast.
Good com
Genius
Solar powered 12 volt fan , with a battery for night use .
Had a thought dh can damage if electric fails in storm because it takes about 4 minutes to shut down so back up power needed battery obvious but wiring?
did you see my other heater videos: www.youtube.com/@andyfireblade
let me know what you think
cheers andy
Hi mate I fitted heater in my shed attached to the hause . done hole in the wal to blow hot air to the 16m2 livingroom - is not noizy in side . Im used exhaust to heat air like u but exhaust pipe is in the steel pipe and this all is in the aluminim spiro pipe.... ) air goes to heater (air inlet - don't need extra fan ). When out siede is 0 deegres then this idea giving me extra around 20 degress celcius on air inlet and on air oulet is over 100 celsius on lowest setings - speed pomp 1.4hz. Without this idea whan is 0 deegres then heater blowing only around 75 celsius on lowest settings
cool,
did you see my other heater videos: www.youtube.com/@andyfireblade
let me know what you think
cheers andy
I've watched lots of your videos trying to make use of the exhaust heat. So far what do you think has been the most effective at trying to use this? Every time I think I want to try this you come out with a new way lol
most effective is putting the exhaust through a radiator.
that really gave out some heat.
cheers andy
hi seen lots of your videos and was wondering which do you think, is the best at getting the heat out of the exhaust ?
thank you for your time that you put in to these videos
jon
exhaust gases through a radiator, cheers andy
I would like to see the exhaust heat used to heat some water
please check out my other videos. i do that
let me know what you think
cheers andy
Hi Andy, have you had any trouble with the fuel pipe on the heater because I’ve seen a few videos where they have changed the fuel pipe. Many thanks Stu
Not at all
Brilliant vid👍🏻👍🏻👌🏻
Any spiders or bugs get in the house?
cheers andy
Put a computer fan as they run slower and quieter.
i will try one , thanks.
did you see my other heater videos: www.youtube.com/@andyfireblade
let me know what you think
cheers andy
Is the exhaust well sealed and away from windows and doors? The volume of air out the exhaust is replaced by air coming in from somewhere.
good com thx again
Have more of a down angle on the exhaust, so moistures don't build up?
ok thx
Could you not raise the heater up a couple of feet, remove the fan and rely on natural convection?
good idea
One question is are you extracting more heat than was being radiated by the bare exhaust, or just using electricity to blow that into a different place?
Monitoring the external exhaust temperature outside the house with and without would be a good way to tell.
good comment thanks
How are you draining the condensing?
there is non in this setup.
did you see my other heater videos: www.youtube.com/@andyfireblade
let me know what you think
cheers andy
Would the gases not b dangerous
all of the fumes go outside.
did you see my other heater videos: www.youtube.com/@andyfireblade
let me know what you think
cheers andy
Create hot water with it
did you see my other heater videos: www.youtube.com/@andyfireblade
let me know what you think
cheers andy
It's good idea, but i don't call it FREE 😊
call it "making use of the wasted exhaust heat that i have already paid for" hahahaha cheers andy
that pump clicking is too loud must be a cheap way of getting another pump ?
please see my other videos , how to get rid of the clicking pump
cheers andy
Tu va intoxiqués c est les gaz échappement
Convection
It’s not free heat. You’re just capturing more of the energy you paid for.
hahaha. thats a good way of putting it!
not sure it would make a good catchy title though.
cheers andy xx
did you see my other heater videos: www.youtube.com/@andyfireblade
let me know what you think
cheers andy
You can use used car oil and add ten percent diesel or crosene, then add 130 percent water, but the water must be ionized, then put the entire amount in a blender until the color of the milk becomes white. Of course, it is preferable to filter the used car oil before using it, and the best thing is to use the centrifugal process with a strong magnet. You will have a very clean combustion and it will burn 100/💯 without the device being clogged from the inside by carbon, and the exhaust will also be clean and the amount of fuel will double by adding ionized water.