The cast iron radiators will collect the heat well but they will probably put rust into your water which is a pain to get out. I would look for copper or stainless steel and try to get the heat exchanger on top of the fire if possible. Hope this helps. Thanks,
Hello, I use type L. They only sell type M and L in my area. I would probably use type K if it was easy to get but I find that L works fine. Only had the one problem of a freeze burst. Not sure if the heaver K would of prevented but maybe. Best just to drain before it gets cold. Thanks,
First thing to do is make sure you DO NOT connect to the main pump. You need a separate pump to run the heater. You need to be able to turn the main pump off and of course if it fails on you there is no way to circulate the water so the piping will blow steam.
If you do a suggest getting a high quality one. I had lots of problems running separate pumps. Two times they failed and one time the extension cord got splashed and tripped the gfi. Only problem with the running main pump was I forgot to override the timer and it clicked it off. That’s why I have the check list. Let me know how it turns out. Thanks,
@@guillaumepare9651 that looks like an good way to get a separate system from the main pump. I just used T s and valves with the stock in and out penetrations. Hope it works for you. Thanks,
How to heat the pool, after you have circulated the pool water for 8 hours, which is what have doing for 10 years. My pump is 1.5 HP, is cost a lot to keep it running. It has low speed, possible to circulated enough water through the coils at low speed? Than I can divert the water just to go to the heater only. Better to use 3/4" SS tubing, than copper, OMHO, copper will be going to the pool water, and need to be removed using metal out, don't like that.
Hello, Depends on the design of the heat exchanger but in general you want to move a lot of water through it because the heat transfer with contrast in temperatures. You won’t get a high reading on the output but it’s about getting every calorie of heat out of the fire and into your pool. Hope this helps!
Great video thank you im going yo build a similar system with a 1000 litres tank... im in argentina with low bugdet.... we have a metal tube used for gas, called epoxi tube.... a friend of mine has used it with great results, straight in the fire.... do you think for 1000 litres could be succesfully used without a pump?
@@sculptureforasmallplanet As an interesting side note, water has one of the highest volumetric heat capacities of any substances though mostly limited to boiling point. Ever considered using something large like a pool but insulated to keep the heat in to heat your home or a building? I would think and the math seems to support that a well insulated large body like that could keep heat for months? A heat pump could remove the heat and heat a large space at least in theory and I've crunched the numbers. (As an obvious side note, your setup as is could not hold heat and water also has one of the highest thermally conductive liquids). I was just curious from one with experience what you take on storing heat in a large body of water? Anyway, TY!
@@l0I0I0I0 very interesting idea. I could see something like this working with thermal solar for heat gain and then going to a home at night. Probably would take a hole lot insulation thought?!? Thanks
I live in a warm environment on a big piece of land and I want to build a decent size pool. I am thinking to build a concrete furnace with door, Have pipes around the perimeter and fire in the middle. a trap door that I can drop a log in from time to time. Does the material need to be copper, I am thinking straight stainless pipes with L brackets.
Hello, Stainless is good because it is durable but kind of hard to work with. Threaded fittings will need to be super tight because all the pipe joint will burn out overtime. But if you have the tools and experience of working with it stainless is a good choice. Especially if you could weld all the joints that will be near the fire. Hope this helps!
Hi, One more thing, if you haven’t yet check out my video “How to make a real wood fired pool heater” and how to heat your “How to heat your pool with the sun”, as you’re designing your pool setup. Thanks,
Great video very informative. Can you help me understand #2 Circulation Volume a bit better. Up until recently I thought it was better to let the water travel slowly thru the system so it could heat up but now I am reading that it is better to have as much water flow thru the system as possible. Is this what you mean. Any more advise on this tip would be greatly appreciated. Thanks
Thanks for the kind words. I know it is kind of counterintuitive to run a lot of water through your heater because you can’t see and feel the difference as much as if it was going slow. But if the water is coming out hot then there is wasted heat going by the heat exchanger. Plus the volume is good for something small like hot tub but for a big pool get a lot of water just warm is better than a little bit of hot water. Hope this helps.
That’s sweet of you but I’m pretty sure they have no idea. Also we only run it a little bit in the spring and fall. The rest of the time the solar heats it up. Thanks,
I was thinking of getting 4 house metal radiators and welding them in a square and make the fire in the middle do you think that would work
The cast iron radiators will collect the heat well but they will probably put rust into your water which is a pain to get out. I would look for copper or stainless steel and try to get the heat exchanger on top of the fire if possible. Hope this helps. Thanks,
What type of copper tubing do you use? L OR K?
Hello,
I use type L. They only sell type M and L in my area. I would probably use type K if it was easy to get but I find that L works fine. Only had the one problem of a freeze burst. Not sure if the heaver K would of prevented but maybe. Best just to drain before it gets cold.
Thanks,
Better build is a large masonry build filled with sand. Get it hot, holds heat for 5-6 days
That sounds neat. And then run the heat exchanger for the water through it? Sounds like a good space heater.
First thing to do is make sure you DO NOT connect to the main pump. You need a separate pump to run the heater. You need to be able to turn the main pump off and of course if it fails on you there is no way to circulate the water so the piping will blow steam.
If you do a suggest getting a high quality one. I had lots of problems running separate pumps. Two times they failed and one time the extension cord got splashed and tripped the gfi. Only problem with the running main pump was I forgot to override the timer and it clicked it off. That’s why I have the check list.
Let me know how it turns out.
Thanks,
@@sculptureforasmallplanet I'm just about to try the Beluga adaptor. Might give it a try too.
@@guillaumepare9651 that looks like an good way to get a separate system from the main pump. I just used T s and valves with the stock in and out penetrations. Hope it works for you.
Thanks,
How to heat the pool, after you have circulated the pool water for 8 hours, which is what have doing for 10 years. My pump is 1.5 HP, is cost a lot to keep it running. It has low speed, possible to circulated enough water through the coils at low speed? Than I can divert the water just to go to the heater only. Better to use 3/4" SS tubing, than copper, OMHO, copper will be going to the pool water, and need to be removed using metal out, don't like that.
DO you want to cut wood or swim? Love it XD
Thank you!
Hi, this is really cool. I already got a wood pool heater and want to get a dedicated pump for it. What should be the gph rating i should look for?
Hello,
Depends on the design of the heat exchanger but in general you want to move a lot of water through it because the heat transfer with contrast in temperatures. You won’t get a high reading on the output but it’s about getting every calorie of heat out of the fire and into your pool.
Hope this helps!
Great video thank you
im going yo build a similar system with a 1000 litres tank... im in argentina with low bugdet.... we have a metal tube used for gas, called epoxi tube.... a friend of mine has used it with great results, straight in the fire.... do you think for 1000 litres could be succesfully used without a pump?
Thanks for your kind words! I think you’ll need a pump of some kind. Can you tie it into the pool’s circulation pump?
Amazing video! Great info, enough details but not too much. Thanks for sharing!
Thanks for the kind words!
Just wondering, what do you think of aluminum for the heat exchanger? You could use recycled auto heat exchangers if it fits in your system.
And ty for posting this!
In my experience Aluminum doesn’t like fire and the super harsh environment like this.
Let me know if you try it and how it works.
Thanks,
@@sculptureforasmallplanet TY, with that said I shall avoid aluminum with direct fire.
@@sculptureforasmallplanet As an interesting side note, water has one of the highest volumetric heat capacities of any substances though mostly limited to boiling point. Ever considered using something large like a pool but insulated to keep the heat in to heat your home or a building? I would think and the math seems to support that a well insulated large body like that could keep heat for months? A heat pump could remove the heat and heat a large space at least in theory and I've crunched the numbers. (As an obvious side note, your setup as is could not hold heat and water also has one of the highest thermally conductive liquids).
I was just curious from one with experience what you take on storing heat in a large body of water? Anyway, TY!
@@l0I0I0I0 very interesting idea. I could see something like this working with thermal solar for heat gain and then going to a home at night.
Probably would take a hole lot insulation thought?!?
Thanks
rocket stove
Yeah, kind of. But this can hold big logs and the two internal heat exchangers.
Thanks,
Too* small. Double "o" on that one :)
Yeah, spelling has never been my thing. But the other info is all correct 👍 Thanks,
I live in a warm environment on a big piece of land and I want to build a decent size pool. I am thinking to build a concrete furnace with door, Have pipes around the perimeter and fire in the middle. a trap door that I can drop a log in from time to time. Does the material need to be copper, I am thinking straight stainless pipes with L brackets.
Hello,
Stainless is good because it is durable but kind of hard to work with. Threaded fittings will need to be super tight because all the pipe joint will burn out overtime.
But if you have the tools and experience of working with it stainless is a good choice. Especially if you could weld all the joints that will be near the fire.
Hope this helps!
Hi,
One more thing, if you haven’t yet check out my video “How to make a real wood fired pool heater” and how to heat your “How to heat your pool with the sun”, as you’re designing your pool setup.
Thanks,
Graphite thread sealant is what you need for temperatures up to 750f
@@tommyguimond5289 Cool, thanks for the tip!
Great video very informative. Can you help me understand #2 Circulation Volume a bit better. Up until recently I thought it was better to let the water travel slowly thru the system so it could heat up but now I am reading that it is better to have as much water flow thru the system as possible. Is this what you mean. Any more advise on this tip would be greatly appreciated. Thanks
Thanks for the kind words. I know it is kind of counterintuitive to run a lot of water through your heater because you can’t see and feel the difference as much as if it was going slow. But if the water is coming out hot then there is wasted heat going by the heat exchanger. Plus the volume is good for something small like hot tub but for a big pool get a lot of water just warm is better than a little bit of hot water.
Hope this helps.
Feel sorry for the neighbours smelling the smoke all summer days because of your genius wood burning heater idea
That’s sweet of you but I’m pretty sure they have no idea. Also we only run it a little bit in the spring and fall. The rest of the time the solar heats it up.
Thanks,