The waterfilling is a good tip, thank you for that. I have a tip for you too. You should make the coil in such manner that it does not touch the stainless steel pipe (inner) wall to avoid contact corrosion. I suspect the coil leaks are caused by this. Copper in contact with stainless steel in a slightly acidic medium and slightly elevated temperatures will gradually dissolve. If technically possible isolate the copper coil from the ss pipe wall by means of an insulator of some sort and shape. this could be a thin wall plastic pipe with a tight fit into the ss pipe. A secondary corrosion protection could be to establish an earthing connection wire between the coil and the ss pipe. Best regards from Bert in Spain
I have a stainless steel tank I'm turning into a rocket mass hot water heater, I have 1/2" copper I'm going to bend into a coil, was going to use copper connectors going through the wall of the tank. I see there is a problem long term with so called galvanic corrosion? If so you recommend several work arounds, because this will be in a wood heated / gaseous environment, the through fittings I mean, I don't think plastic pipe is a good option, can you explain earthing connection wire?
I've tried to use the method of filling sand into copper pipe but it didn't work so well. This actually looks like it would 100% work, so thanks so much for sharing this video!
Really good idea, wish I watch this video earlier so i dont ruined my project and i can saved money. Thanks for the video, really help me for the next project.
Thank you so much for this tip,. I have been wondering how to make a copper spiral, as I was thinking a bending spring would maybe be impossible to get out again. A friend suggested sand, but I couldn't fins fine enough sand
If you don't have the strength you can use a small pipe about 6" the inside diameter just a little larger than the tubing and slide it over the tubing it will give you leverage to coil the tubing as it feeds out the end of the pipe.
If there are few holes, then cold gas dynamic metal spraying equipment ( look my video ) can be used for quick repair. This will help save time and new parts
@@emmett117 Yep, sure did. Here's the basics.... take a metal trash can and drill four 2 inch holes. 2 of them a little above the bottom, 2 of them about midway up. Then take a coil of copper (3/8 or 1/2) and put it on top, then cover that with a lid, letting the copper lines stick out. Now get a cheap $20 pump off Dr. Evil's Lair (Amazon) and an old hot water heater, remove the drain valve and bottom element, and connect the lines to these ports - the pump should be pulling water from the drain valve and returning it to the bottom element port. Now start a fire in the trash can. The more turns of copper coil, you have on top of the fire, the more efficient it will be (up to a point of diminishing returns, obviously.)
A bit curious other then the standard home residential diameter size pipe/tubes of the proper type M,L,K wall thickness i realize the proper way to bend them and with what pipe bending tools work be it pipe bending sleeves , electrical conduct pipe bending tools ...etc. How to make the proper angle bends/turns lining everything up with the numbers on the tools ...etc. I know this stuff.
Thanks for the vid. Making a coil to go inside the pizza oven so that I can heat the pool. I will take accurate measurements of the heat chamber temperature, water flow and pool temp, both inflow and outflow. The pool is 20,000 gallons......
Need something much more than a pizza oven to heat so much water. You might be able to heat 10 or 20 gallons in time it takes to cook a couple pizza, and have hot water on demand during day.
Nice trick with the water filling to make no kinks when bending. You simply crimp the ends after filling with water then bend and then cut ends of to drain water. No major pipe bending tools required for this diameter pipes/tubes
But the main question is what diameter sizes and wall thickness can you bend when it comes to tubes and pipes of different materials ?????? I am looking at it only from local hardware stores or for home building/residential building which is small interms of the whole engineering buildings for commerical and industrial. I rather not just know for small scale home building but any engineering pipe size on earth a more general question.
@Cool Tech HVAC hey! I volunteer in Haiti started building water heaters ( waste heat collected for diesel exhaust ) wondered if I soldered one end cap on.. filled the tubing with water and soldered the other end with a bit of air space so it’ll heat up enough if that might work found 7/8” tubing really hard to coil in 12” diameter coil. Any suggestions? 48 Kids at orphanage can now wash with hot water clean dishes etc thx man appreciates ya help
please i am new in making a heater for radiators.. which shood go into the rocket stove... temperature inside is about 1000celsius.. shood be all burnt fuel... das the copper can handl it? i read that coper melts on 1050 celsius and with watter inside it shood be cold enaugh like maybe 300 celsius? but everybody says copper is not the way to go. can you explain your wiev of this.. maybe to work with prochrome?
Just a curiosity not a big deal as i probably wont get to touch or even need to touch any of this commerical/industrial building stuff. As i like off/on building house not sure i be up for the challenge of building big high rise buildings anyway. But is a curiosity about what is practical to bend with pipe bending tools/machines. And when it all needs to be more molded/casted into the shapes not bent.
I am skeptical about the value of filling with water. For the bend radius shown in the video, you may have achieved equally satisfactory results without any filling whatsoever. Water exerts equal pressure in all directions, so it would make it significantly more difficult to bend around the mandrel. Also, any small leak would make it completely ineffective. For small bend radii, I think that using sand or salt would be better.
Sir, Thanks for the comments. I made 3 inch radius in half inch copper tube. Water is better option for me, easy to remove ( fleshing and vacuum) . I used the coil for a Refrigeration purpose
The waterfilling is a good tip, thank you for that. I have a tip for you too.
You should make the coil in such manner that it does not touch the stainless steel pipe (inner) wall to avoid contact corrosion. I suspect the coil leaks are caused by this. Copper in contact with stainless steel in a slightly acidic medium and slightly elevated temperatures will gradually dissolve. If technically possible isolate the copper coil from the ss pipe wall by means of an insulator of some sort and shape. this could be a thin wall plastic pipe with a tight fit into the ss pipe. A secondary corrosion protection could be to establish an earthing connection wire between the coil and the ss pipe.
Best regards from Bert in Spain
"galvanic corrosion"
I have a stainless steel tank I'm turning into a rocket mass hot water heater, I have 1/2" copper I'm going to bend into a coil, was going to use copper connectors going through the wall of the tank.
I see there is a problem long term with so called galvanic corrosion? If so you recommend several work arounds, because this will be in a wood heated / gaseous environment, the through fittings I mean, I don't think plastic pipe is a good option, can you explain earthing connection wire?
A plus! Thank you! A gentleman and a scholar.
I've tried to use the method of filling sand into copper pipe but it didn't work so well. This actually looks like it would 100% work, so thanks so much for sharing this video!
Did you heat the sand or the pipe? That works for pvc and about to try with copper
Thank you for showing me your incredible simple effective way to coil copper pipe.
Really good idea, wish I watch this video earlier so i dont ruined my project and i can saved money.
Thanks for the video, really help me for the next project.
I’m having to do this for the first time at a plant. Love seeing a man ply his trade! Thx for the water fill tip!
Thanks for the comments 😍
@@cooltechhvac4555 would you be willing to make one at 3/8 inch and send it to someone?
Thank you, I learned something useful. I want to distill alcohol using a coiled heat exchanger.
Thnx. The ' build water pressure crimping' was the piece i was missing from my plan. 😎
Thanks for the comments
மிக அருமையாக வடிவமைத்துள்ளீர்கள்❤❤❤
Thank you so much for this tip,. I have been wondering how to make a copper spiral, as I was thinking a bending spring would maybe be impossible to get out again. A friend suggested sand, but I couldn't fins fine enough sand
If you don't have the strength you can use a small pipe about 6" the inside diameter just a little larger than the tubing and slide it over the tubing it will give you leverage to coil the tubing as it feeds out the end of the pipe.
Thank you very much for this great tuturial!!
Didn't care for the sand method due to possible particulate remains. Thanks for this.
sylkelster Thanks 🙏
If there are few holes, then cold gas dynamic metal spraying equipment ( look my video ) can be used for quick repair. This will help save time and new parts
Thank you
Hey bud, thanks for the vid! I'm working on a firewood powered water heater and I'd never have thought of this!
Hey did you ever finish your firewood waterheater? I'm trying to do the same thing!
@@emmett117 Yep, sure did. Here's the basics.... take a metal trash can and drill four 2 inch holes. 2 of them a little above the bottom, 2 of them about midway up. Then take a coil of copper (3/8 or 1/2) and put it on top, then cover that with a lid, letting the copper lines stick out. Now get a cheap $20 pump off Dr. Evil's Lair (Amazon) and an old hot water heater, remove the drain valve and bottom element, and connect the lines to these ports - the pump should be pulling water from the drain valve and returning it to the bottom element port. Now start a fire in the trash can. The more turns of copper coil, you have on top of the fire, the more efficient it will be (up to a point of diminishing returns, obviously.)
Awesome, thank you bor, you have saved me a ton of money!
Beautiful. Going to make a solar heat exchanger using your method of coil. Somebody told me fill with sand. Huh? Brilliant. Nice to have a trade.
Very good keep it up.
Nice one, i might achive better results now, thanks, Thom in, Scotland.
A bit curious other then the standard home residential diameter size pipe/tubes of the proper type M,L,K wall thickness i realize the proper way to bend them and with what pipe bending tools work be it pipe bending sleeves , electrical conduct pipe bending tools ...etc. How to make the proper angle bends/turns lining everything up with the numbers on the tools ...etc. I know this stuff.
Very informative thanks! 👍
Nice Work Broii.. 👍
Thanks
Thanks for the vid. Making a coil to go inside the pizza oven so that I can heat the pool. I will take accurate measurements of the heat chamber temperature, water flow and pool temp, both inflow and outflow. The pool is 20,000 gallons......
Wont do shit
Did you end up gathering data on this? I'm trying to do the same thing
Need something much more than a pizza oven to heat so much water. You might be able to heat 10 or 20 gallons in time it takes to cook a couple pizza, and have hot water on demand during day.
I need a copper coil 1/2 inch size
Nice trick with the water filling to make no kinks when bending. You simply crimp the ends after filling with water then bend and then cut ends of to drain water. No major pipe bending tools required for this diameter pipes/tubes
That was really cool thanks!
But the main question is what diameter sizes and wall thickness can you bend when it comes to tubes and pipes of different materials ?????? I am looking at it only from local hardware stores or for home building/residential building which is small interms of the whole engineering buildings for commerical and industrial. I rather not just know for small scale home building but any engineering pipe size on earth a more general question.
Would this method work for a-smaller coil I would do this using 1 1/2 “ pvc for the size ???
I used 2" pvc pipe, you can use 1 1/2". Mainly the copper pipe need to filled water and maximum squeeze both ends to build the pressure.
@Cool Tech HVAC hey! I volunteer in Haiti started building water heaters ( waste heat collected for diesel exhaust ) wondered if I soldered one end cap on.. filled the tubing with water and soldered the other end with a bit of air space so it’ll heat up enough if that might work found 7/8” tubing really hard to coil in 12” diameter coil. Any suggestions? 48 Kids at orphanage can now wash with hot water clean dishes etc thx man appreciates ya help
You should fill it with boiling water make it boil before you pinch it off because boiling forces all the dissolved gases out of the water
please i am new in making a heater for radiators.. which shood go into the rocket stove...
temperature inside is about 1000celsius.. shood be all burnt fuel...
das the copper can handl it? i read that coper melts on 1050 celsius and with watter inside it shood be cold enaugh like maybe 300 celsius?
but everybody says copper is not the way to go. can you explain your wiev of this..
maybe to work with prochrome?
What size pipe is this ?
I'm done with 3/8" and 1/2" 15 meter length size
What about 1/4 inch Sir.?
you can do the same method
Nice one.
Awesome! Thanks
Thank you
Just a curiosity not a big deal as i probably wont get to touch or even need to touch any of this commerical/industrial building stuff. As i like off/on building house not sure i be up for the challenge of building big high rise buildings anyway. But is a curiosity about what is practical to bend with pipe bending tools/machines. And when it all needs to be more molded/casted into the shapes not bent.
Water fill it then freeze it over night. Will stop any kinking when coiling. But not that much coiling.
Plzz send Cooper pipe online peaches link
Nice work
1/2 ka bhi hosakta h Kya sir
Yes, definitely
Nice, useful video
daaa kooli yethra kiiti ee panikku
ivane nerathe ariyamo
great,thanks for that.
Good Job well done
impressive! thank u
How hot can you heat up copper
I'm using for a water cooling machine
Good idea
Please.....lose the music!!!
I am skeptical about the value of filling with water. For the bend radius shown in the video, you may have achieved equally satisfactory results without any filling whatsoever. Water exerts equal pressure in all directions, so it would make it significantly more difficult to bend around the mandrel. Also, any small leak would make it completely ineffective. For small bend radii, I think that using sand or salt would be better.
Sir, Thanks for the comments. I made 3 inch radius in half inch copper tube. Water is better option for me, easy to remove ( fleshing and vacuum) . I used the coil for a Refrigeration purpose
Good
Woww
Maneeshee
Great video terrible sound track.